The term smooth DC is used to describe the power provided to the layout by conventional model railroad power packs (analog transformers). Traditional model railroad power packs convert household line current into 12-18 volt current to power your model railroad. Voltage is supplied to the track, and as the voltage increases, the speed of the locomotive's motor increases, which makes it run down the tracks at faster speeds. Some power packs put out only AC (alternating current), while others put out DC (direct current) and AC (for accessories such as track switches and building lights). AC powered trains tend to ...

DCS50’s Jump A & B ports can host two DC power packs that work as additional throttles to control DCC locomotives.You begin with an operating DCS50 attached to your layout.   In addition to the throttle built into the DCS50, you can create a LocoNet to add additional Digitrax throttles and other Digitrax devices.  Jump Ports:You can also connect up one or two smooth DC power packs as shown in the following illustration.  These power packs must also be powered, since the Zephyr jump throttle connections detect the voltage level from the individual power pack(s) and makes adjustments to the command control ...

I am getting a DH165LO decoder and a SFX004 Soundbug. Will these function on standard DC power? Yes. The DH165 series has "analog mode conversion"; the default setting is for operation in both DC and DCC environments. There are some that do not want this feature, and it can be disabled by setting CV29. The SFX004 also operates in a DC environment, and the analog mode conversion can be turned off via CV29. If so, how? Early on, Digitrax recognized that locomotives are sometimes operated in DC environments, and the conversion feature was built into the firmware. In practice, those ...

In the DZ123 mobile decoder, if CV03 and CV04 (acceleration, deceleration) have been programmed for momentum, will momentum remain active when the decoder is then used in analog mode with pure (not pulsed) DC? Yes.

Digitrax SoundFX decoders will automatically operate on smooth DC power unless analog mode conversion has been disabled. The sound will not start until approximately 5 volts is applied to the track.  Due to this characteristic of analog operation with a DCC decoder installed, the start up sound will not play.

This H0-scale railroad track plan first appeared in the Atlas Model Railroad Company's book "Six Railroads You Can Build", written by John Armstrong and illustrated by Tad Stepek. This book was first published in 1958 and has been reprinted several times. A classic bowl of spaghetti, the Transbay Interwoven has two reversing loops and a turntable. DC Control For DC operation, Atlas specified three Atlas Controllers (for the reverse loops and the turntable), two Atlas Selectors (to control eight track segments) and ten controllers for the railroad's turnouts. DCC Makes Things Simple With DCC, the wiring of this railroad is ...

Q:  Is it possible to use Digitrax equipment to wire the Kato N-Scale Automatic Track Crossing? If so, how do I do it? A:  The answer is a probable "No", but there may be a workaround. The Kato, USA website notes: Some Unitrack components such as the Automatic Crossing Gate and 3-Color Signal were designed with DC operation only. So, the official position is that that these devices don't work in the DCC environment. However, we are not above speculating on how to do this, nor are others. An online web search turned up this bit of message traffic by ...

This Atlas Snap-Track layout appears in the Atlas Model Railroad Company's book "Beginner's Guide to HO Model Railroading". It includes a reversing section which can be controlled with a Digitrax AR1. DC Control For DC operation, Atlas specified an Atlas Controller (for the reverse loop), two Atlas Selectors (to control eight track segments) and seven controllers for the railroad's turnouts. DCC Makes Things Simple With DCC, the wiring of this railroad is considerably simpler. Because each locomotive has a unique address, the section insulated gaps and the two Selectors are not necessary. Likewise, the Controller is replaced with the AR1 ...

Q:  Can the SE8C slow motion turnout controllers operate multiple turnouts from one output? A:  No. The slow motion connection was originally intended to be used with single slow motion drives for semaphores, part of the overall design of the SE8C signal driver. Since only one semaphore is operated, the circuitry was not designed to handle heavier loads than that single drive.

Q: What is the basic configuration and OpSw settings for a section of the PM42 when configured for circuit breaker control? A:  The PM42 is a 4 section multi-purpose device where each of the four sections can be individually configured to act as either a circuit breaker, or automatic reverse loop controller. The PM42 monitors the current flow to the rails and interrupts the connection when it senses that the current demands exceed the upper allowable current level determined by the User controllable Option Switch (OpSw) settings. The power flow of a layout's command control system starts with the command station, or ...

LocoNet's "ethernet like" architecture seems interesting and more advanced than the systems used by other DCC manufacturers. But, at the numbers we are talking about (a few controllers and perhaps 10-20 decoders), does it really make a difference?If your system operates with a few throttles and other devices attached any of the commercially available systems will work today. But what about tomorrow? Remember when a hard-drive bigger than 32Mb seemed excessive- and remember when DOS had to change to 16bit FATs/ directories? Also, the LBA access change at 540Mb also once seemed unthinkable!!The network structure of LocoNet is very important ...

What about using a Digitrax-decoder-equipped locomotive on a layout having only DC power?It is possible, but analog operation of DCC equipped locomotives is becoming a bit of a rarity. In earlier times some locomotives were delivered from the manufacturer with a DCC decoder in place and a jumper plug was used to select the operating environment. Digitrax still offers a jumper plug for use in some configurations; you remove the decoder and replace it with the DHDP or DNDP. With later generations of decoders, it is possible to operate on a DC layout with the decoder in place. To quote ...

Braking sections are sections of track which will cause a DCC equipped locomotive to stop automatically. The simplest way to do this is to set up a track section where the power is turned off. This has two disadvantages. First, since there is no power, the locomotive lights will be off when the train is stopped in the section. Second, the lead loco in a consist stops as soon as it hits the dead section. Other locos in the consist will push the dead loco forward. In a long consist, you could get a situation where the last loco in ...

  CV29 is assigned a single value which chooses a combination of specific effects: 1. Speed step control. 2. Speed table On or Off. 3. Analog mode conversion On or Off. 4. Normal Direction of Travel (NDOT). 5. 2 digit addressing or 4 digit addressing. Analog Mode Analog mode conversion is very convenient if you plan to run your Digitrax decoded locomotive on regular DC layouts. With analog mode conversion enabled, the decoder will automatically begin operating as a DC locomotive when no DCC signal is detected by the decoder. This means that if you place your Digitrax decoder equipped ...

Digitrax decoders allow for operation on both Digital Command Control (DCC) powered and on traditional Direct Current (DC) powered model railroads.  Decoders from other manufacturers may or may not have this featureModern Digitrax Decoders are shipped with analog functions enabled to allow you to have working functions on locos on either type of layout without changing any CV values.  (Series 3 decoders and later) When a Digitrax Series decoder with analog functions enabled moves from a DCC track section to an analog track section, the functions that were active on DCC will remain active on DC.  For these decoders, CV13 is ...

The PS615 is the Digitrax recommended power supply for the DCS240 in 5 amp mode.  For operations at 8 amps the PS2012 is the recommended power supply. When using the PS2012 special wiring considerations need to be used when powering both the DCS240 and legacy boosters from the same PS2012.  Leagacy boosters are defined as the DCS100, DCS200, DB150, DB200 or DB100.  Please see the separate article “Powering your DCS240 with a PS2012” and the additional notes below. The DCS240 may be powered either using the barrel plug connector or the screw terminals labeled “+” and “- “. The barrel ...

The PS14 is a 300ma, 14 Volt power supply for powering Digitrax accessories like the UP5, BDL168, DS64, SE8C, LNRP, UR90, UR91, UR92 and others

Scaleable speed stabilization (back EMF) compensates for load by providing more voltage to the motor.  If there is a mechanical problem with the locomotive that greatly increases this load you can prevent damage to motor by setting CV57 to limit how much throttle can be added due to BEMF.Digitrax Scalable BEMF uses CV57 to control how much compensation authority the BEMF control loop has.  The higher CV57 is (0-15 range) the more back-emf the control loop can crank in; a value of 0 effectively turns off BEMF compensation.  The value in CV57 takes into account the different throttle levels as ...

Recommended by Digitrax for powering Digitrax accessories like UP5, BDL162, UR90, UR91, DS54 & PM42 Retired in 2009

PS615 90W AC/DC 15VDC 6 amp power supply for use with all Digitrax Command Stations and Boosters operating at 5 amps.

The DM-1 is an inline adapter designed to modify any DS54 output to provide the bi-polar drive current needed to run reversible DC motors, solenoid switches (like Kato & LGB turnouts), lamps and other similar devices that draw up to 1/2 amp. Just plug the DM-1 into any DS54 output and the DM-1 socket will provide a bipolar drive rated at 500MA continuous and 1 amp surge. Retired in 2007

Regulated power supply delivers more power with less heat for more efficient booster operation. Operates up to 4 Five amp boosters. Scale selectable for use with N, HO or large scale. DC Ammeter. On/Off Switch. Integral cooling fan. Design coordinated for use with Digitrax products. One "Y" Cable (P/N YC52) Included for convenience with dual 5 amp protected outputs All secondary devices must be properly fused on their power input leads for their rated capacity. For example if you intend to use the PS2012 to drive a 5 and an 8 amp booster, you must input fuse these devices for ...

What do I need for DCC control of a Walters Cornerstone Swing bridge? Image Courtesy Wm. K. Walthers We do not have any direct experience with this particular bridge but after a little research, this is what we recommend.The instruction sheet which comes with the 933-1050 Motorizing Kit is quite vague.  "The unit runs on DC power.  Hook the wires up to the DC contacts on a transformer with a maximum voltage of 12.  If you hook it up to a variable speed transformer, do not exceed 12 volts.  The gear ratio is 320:1."  That said, it is still a ...

I have a 4x8 H0 scale layout.  I'm 13 years old and REALLY thinking about switching to DCC, I need to know really fast because I want to ask my parents to get it for Christmas.You wouldn't know by looking at those who edit the Tech Support Depot, but there actually was a time when we too were thirteen, and just starting out in model railroading.  In many ways, we still are thirteen years old; we just can't move as fast.  Consider this photograph from our youth: This little bit of ancient model railroad history dates back to the 1950's, ...

We have designed a layout at my place with double main line with reverse loop at each end. Plus there is a branch line with two reverse loops that in one loop is connected to the main line. The main lines stay double track even at the split. The branch stays single with only one connection with the main. My plans where to use the AR1 for all my reverse loops and the PM42 for my power control. What if any problems do you see with all these loops? Nothing, if you can guarantee that at any given time only ...

Digital Command Control (DCC) has specific electrical requirements that must be provided for your layout control system to operate properly.Input PowerAll DCC systems require an external power supply.  Digitrax manufactures several power supplies for our command stations and boosters: The 3 Amp PS415 (the Zephyr Xtra power supply) The 5 Amp PS515 for all Digitrax 5 amp command stations and boosters The powerful 20 Amp PS2012 can be used for multiple 5 and 8 amp command stations and boosters  Additionally, the PS14 is available to power various other devices for your railroad.  Digitrax strongly encourages you to use our power supplies to insure satisfactory ...

Q:  I have an MRC RailPower 1370 DC power pack.  I was wondering if that would work as a jump throttle on my Zephyr till I get my UT4 LocoNet Throttle? A:  We think that the answer is "No", but you will need to verify whether this power pack produces pure or pulsed DC power directly with MRC. Throttles used with Zephyr Xtra via the Jump Port must produce pure DC power, often referred to as "smooth" power packs. Many "advanced" analog power packs use automatic pulse injection to make model locomotives run better at slow speeds. This uses 1/2 wave AC ...

I was wondering if I could use an output on the DS64 to momentarily apply power to a Kadee #309 electric uncoupler? OpSw 02, 03, 04, &05 closed would give me a 3 second pulse. The Kadee uncoupler may require as much as 3 Amps @ 22 Volts. So, what is the current carrying capacity of the outputs on the DX64 [sic] ? What is the maximum DC voltage I can apply to terminals AX1 and AX2? The DS64 can accept 12-16 volts AC or DC on the rear modular jack or 12-16 volts DC on the  AX1 (-) / ...

Connecting a PS2012 DC power supply to an “Advanced Booster”  DCS240 and sharing with older Command Stations and Boosters: The 2016 US DOE external power supply Efficiency requirements effectively require using DC input power and supplies for new-design products including our Advanced Command Stations/Boosters.     Digitrax does not recommend sharing a suitable DC supply for an Advanced type unit like a DCS240 with older Legacy Digitrax Command Stations/Boosters designed to run on AC output transformers. This is because the common Booster Ground (typically pin 4’s) and negative power return wires have a diode offset in non-Advanced (AC input)  units ...

  This document outlines the power requirements for Digitrax LocoNet accessories.  To simplify wiring, Digitrax recommends providing individual power supplies for like accessories.  For example a power supply or power buss which only powers the PM42s.  A power supply or power buss used solely to power multiple DS64s.  UR9x and UP5 panels can be daisy chained provided adequate current is provided to properly power all the panels.  Through the use of individual power supplies, the chance of Ground Loops or sneak paths back to ground is minimized.  Using individual power supplies will also make troubleshooting much easier.  Many Digitrax LocoNet ...

There are many transformers and power packs that can supply input power for Digitrax boosters & command stations. Most regular DC train control packs do not have enough power to supply the full power potential of the a 5 or 8 amp booster, since they were designed to only run 1 locomotive in a blocked system. To get the full power potential of your booster, you must use a power supply that can supply enough power. Check with your local Digitrax dealer to see which transformers are available. If you are using a Zephyr Xtra, please use ONLY the power supply ...

LocoNet is Digitrax's method of communication between LocoNet compatible devices on a model railroad layout.  LocoNet compatible devices are designed to work together on the network, and in some cases can also accept DCC commands from  the track, but often go beyond the scope of simple DCC train control.   LocoNet is a peer-to-peer Ethernet type multiple access network.  Because of its design architecture, it is very robust and powerful.  Layout implementation is simple and wiring is free form with minimal limits. LocoNet is designed to run an unshielded 6 conductor ribbon cable.  Digitrax recommends using flat, six-conductor telephone wire ...

You'll need a few simple tools when you begin installing decoders: A soldering iron, preferably temperature controlled. Though many installations do not require soldering, you may still need to use a soldering iron to install extras like lamps for special lighting effects. Solder. A small screwdriver for disassembling your loco. Small diagonal cutters for cutting & stripping small wire. Tweezers to pick up small loco parts. Heat shrink tubing for protecting wire connections, this is better than electrical tape. 1. Read the instructions FIRST and PLAN your installation. Have the proper tools on hand. 2. Choose a locomotive that runs ...

Digitrax Complete Train Control By Zana & A.J. Ireland Digitrax Complete Train Control makes reliable, realistic train operation and simplified layout wiring a reality. Digital Command Control is incorporated within the Digitrax system to let you control multiple trains independently on the same section of track without blocking. In the real world, engineers control the speed and direction of real trains. Engines operate under their own power independent of the track. Each engine has its own motion characteristics like how fast it speeds up (acceleration) and how long it takes to slow down (deceleration). A locomotive's performance is influenced by ...

The Texas & Southwestern has a reversing loop, and DCC insures reliable and simple operation of trains in the reverse loop. This reverse loop is handled with a Digitrax AR1 Auto Reversing Controller. The automated features of the AR-1 make for seamless train movements, but an issue quickly arose. Because a reverse loop in a traditional DC-powered model railroad environment required manual operation, the track insulating gaps for the loop were usually located for the convenience of the operators. So the track gaps of the original track plan were situated to keep this inconvenience to a minimum. Note also all ...

Note: Zephyr (DCS50) has been superseded by Zephyr Xtra (DCS51) which is available in an EU version that comes with the appropriate power supply.  This article only applies to the original Zephyr (DCS50)Q: I´m a foreign model railroader, and I want to buy a Zephyr without power pack. The instruction manual says that I can use a 18 Volt DC trafo in order to power the Zephyr. Can you suggest a way to connect a Zephyr DCS 50 to German current (220/50)? A:  In the North American market, Digitrax recommends the use of a dedicated PS315 power supply or equivalent for use ...

Application Note: Walthers/Life-Like F7 H0-Scale steps needed for the DH163D DH123D decoder installation. Remove packing protectors screwed to coupler pockets: Carefully remove shell by spreading sides at side windows: Here's an alternate method for removing the loco shell - our F7 unit had a particularly stubborn shell. In place of the X-acto knives pictured, we recommend toothpicks or something a little safer.. Remove DC Plug (or a DC Printed Circuit Board in this case) from the wiring harness: DC Plug shown removed: Plug DH123D or DH163D decoder to 9 pin wire harness and mount it as shown: Reinstall loco shell.

I have an extensive collection of older (15-20 years) Z-Scale Maerklin equipment. Can I convert the locos to Digitrax, or must I buy some other brand of loco to use Digitrax? Maybe yes, maybe no. It depends upon the size of the locomotive. We are aware of several European Z-Scale model railroads that use Digitrax. We also know of a very large Z-Scale railroad in Washington, DC that uses Digitrax. This particular railroad is a model of Swiss prototype, so the locomotives are all electric-types; there seems to be enough room inside for a decoder, especially the new DZ125 series ...

I have a small switching layout, I am interested in low-end speed control and want to control turnouts from the hand held. What components do I need?All Digitrax command staions offer excellent low-end speed control as long as you are using decoders capable of 28/128 speed step operation.  Low speed performance will also be affected by how you set up the CVs in the decoder to define how the specific locomotive will respond to system commands.  Remember that installing a DCC deocder will not automatically improve the operation of your locos, you will need to first make sure they run ...

The front panel of the DB150 Super Empire Builder has electrical connection points, indicator lamps, LocoNet connections and toggle switches which give status indications, configure and connect the unit for your railroad. Power Input The two “POWER IN” terminals on all Digitrax boosters & command stations are the power input connections. Please see the related articles about power requirements for the DB150. Power Supply Digitrax recommends the PS515 power supply to power the DB150. There are many other transformers and power packs that can supply the input power for the DB150. Check with your Digitrax dealer for suggestions. Most regular ...

  One major consideration is that the reverse section controlled by the AR1 must be longer than the longest train. It is a common misconception that the AR1 will work with an analog controlled ("DC") locomotive; it will not. The AR1 is meant to be used only in a DCC enviroment. The AR1 coordinates the phasing of the reversing section with that of the mainline (non-reversing) section of the layout.  Because a Digitrax layout can be a complex enviroment with detection and transponding, etc. consult the approriate Digitrax user manuals and the Digitrax Tech Support Depot knowledge base.  

DCC Automatic Reversing SectionsVirtually all automatic reversing will fall into 3 categories with the wiring principles for all being the same:1. Reverse Loops2. Wyes3. TurntablesDCC has the ability to automatically reverse sections of track we call Reversing Sections while our trains are running and not affect the direction or speed of the trains. This is because we put a constant square wave AC current on the track and control the trains (locos) by sending messages to them (actually to receivers we call decoders) to tell them what to do such as start, stop, change directions, etc. . We are thus ...

When you click on the "FX-Setup" button a second menu screen appears which contains the special light effects for the FX decoder. If the decoder you are programming is not capable of FX effects, this section will not apply to your situation.On this screen we have access to F0 Forward Light, F0 Reverse Light, F1, F2, F3 & F4. The programming directions and choices are the same for each function. The pull down field to the right of this shows you which effect is assigned to that particular function. The following is a list of choices: No effect, normal function ...

I don't understand what the white cam lead gets hooked up to. Some model steam locomotives are equipped with, or can be equipped with, a cam arrangement which coordinates the sound to the rotation of the drivers creating chuffing. As the wheels turn, a switch opens and closes, operating the chuff sound produced by the sound decoder. The white wire goes from the decoder to a microswitch which is operated by a cam that is mounted on the axle of one of the drivers. In operation, when the white wire senses the DCC track signal, it operates the chuff sound ...

By Zana & A.J. IrelandThis clinic is titled Digital Command Control: The Wave of the Future. Recently, I was asked the question: "DCC has arrived and is the technology of today, everybody's using it so, why don't you change the title of your clinic?" My answer is that digital command control is still evolving rapidly. Today's digital command control is moving beyond the basic NMRA DCC Standards and RPs to encompass many new technologies that will compliment and enhance the basic things we can do with the track format defined by the NMRA. It's an exciting time for model railroaders ...

By Zana & A.J. IrelandThis clinic is titled Digital Command Control: The Wave of the Future. Recently, I was asked the question: "DCC has arrived and is the technology of today, everybody's using it so, why don't you change the title of your clinic?" My answer is that digital command control is still evolving rapidly. Today's digital command control is moving beyond the basic NMRA DCC Standards and RPs to encompass many new technologies that will compliment and enhance the basic things we can do with the track format defined by the NMRA. It's an exciting time for model railroaders ...

1. Read the instructions FIRST and PLAN your installation. Have the proper tools on hand. 2. Choose a locomotive that runs well on regular DC. 3. Choose the appropriate decoder for your installation. 4. Test the decoder before installation. 5. Carefully disassemble the loco. 6. Isolate the motor! 7. Follow the decoder's wiring diagram or installation instructions. 8. Test the installation first on DC then on DCC. (If the lights are flashing the first time you apply power, remove the loco from the track and locate the short circuit in your installation.) 9. Customize your decoder by programming individual CVs.

I have purchased an LNRP, UR90, and 4 UP5s. I have noticed the LNRP seems to have a solder point between the two LocoNet jacks as the UR90 and UP5.Can all of these be connected to the same 12 volt power supply? No. It is important that each LNRP has its own power supply. As noted in the documentation that comes with the unit, "the LNRP drives the power and Railsync signals on the standard LocoNet cable segments, so each LNRP should have a DC input of +12V to +18V at up to 250mA supplied on the side DC power ...

  Can a DS64 be powered from the LocoNet RailSync lines? No.  The LocoNet cable is used only for LocoNet commands. The DS64 must be powered via the rear modular connector (12-14 volts AC or DC) OR via the AUX power 12-16 volts DC using AX1(-) and AX2(+) on the circuit board at the front of the unit. It is also possible for the DS64 to get it's power from the track hooked to Trk A and Trk B terminals, but experience has proven that this power source may not be reliable in certain situations.  NOTE: Use only the rear power jack or ...

You can add a second Zephyr to add more power and an additional throttle on the DCS50 and two additional Jump ports for using DC power packs to control DCC locomotives.  You will need to change Option Switch 02 to c (Closed) on the second (and any additional DCS50s you might choose to add to the layout as well).  The diagram below shows you how to do this.

The PM42 was specifically designed to work with Digitrax Direct Home wired layouts. Any system that is configured this way will work with the PM42 with no interoperability issues. For example, CVP uses interoperable booster connections.The PM42 can be used with a DC system if it is hooked up in the negative ground return path, or even a Marklin AC digital (trinary) booster. It is possible for the PM42 to be used with most DCC systems. Digitrax has no control or knowledge of each specific non-Digitrax system and how it may interact with the PM42.

This article stops in a strange place??  We need to find the rest of it and split it up into meaningful chunks.  Also needs meta stuff Troubleshooting in General:Regardless of the guides, manuals, tips, suggestions, experts or whatever, troubleshooting can occasionally degenerate into a vast chasm of darkness and confusion.  It would be impossible to cover all the areas that have, can or may cause problems. This is a general guide to identifying and resolving problems with Digitrax Complete Train Control.  Keep Good Records:Although it may seem to be a pain while setting up your Digitrax system, keeping layout records ...

Most HO, N & Z Scale model locomotive motors and lamps are designed by the locomotive manufacturers to operate at full speed at 12 volts DC on the track. Digitrax recommends running your DCC command station and boosters at the lowest track voltage possible that provides acceptable operation. The “N Scale (12V)” setting on Digitrax equipment works for most HO, N & Z scale layouts. Some DCC systems made by other companies supply more voltage to the track and are not adjustable. If the track voltage applied exceeds the operating parameters of the locomotive and its lamps, it is possible ...

Steps needed for the DZ125PS or DZ143PS decoder installation: Remove couplers and carefully remove loco shell to reveal the 8 pin dummy (DC) plug. Remove 8 pin dummy (DC) plug [picture shown with plug removed]. Plug in the DZ125PS or DZ143PS with orange wired #1 pin in pin with triangle marked pin. Detail of DZ125PS or DZ143PS with orange wired #1 pin correctly oriented. Tuck decoder in cab area of loco, replace shell and reinstall couplers.

What are the power requirements of a SE8C? Any power supply that can provide 12-15 volts either AC or DC with a minimum current rating of 100 ma is all that is necessary to power a single SE8c. Digitrax recommends the PS14 for powering the SE8c. A single PS14 has the ability to power two SE8c’s. When connecting multiple SE8c’s to a single power source the total maximum current requirement of the power source is computed by multiplying the number of SE8c modules by 100 ma (Example: 3 SE8c’s would require a 300 ma power supply - 3x100=300). The edge ...

In response to questions about the differences among the DCC systems that are currently available from different companies, I offer the following comments & observations. You may have heard that all the systems are pretty much the same or you may have seen “comparison” charts in various DCC companies’ literature, in magazines or “analysis” on the Internet by “impartial observers.” Unfortunately, it is almost impossible to break down the system and company differences on a simple chart & the people who write the “impartial analysis” are usually not really impartial. As you read these comments, please keep in mind that ...

'It is possible to operate one conventional DC locomotive at Address 00.  In many cases, this is the first locomotive that beginners use when they first get their command control system.  In other cases, this locomotive is one which cannot be easily converted to DCC.  Regardless, although it is possible to use your Digitrax system in this way, it is not a recommended approach.1. Place an analog locomotive (one without a decoder) on your layout.  While the analog loco is sitting still, you will hear the characteristic “singing” caused by the DCC track signal when it is applied to analog ...

CVs are decoder memory locations that hold loco address, operational  configuration and performance settings. Adjusting them to customize the performance of a specific locomotive is one of the main advantages of DCC over DC running. - Doug StuardThese are special storage locations or "pigeonholes" in your mobile decoders. By programming various CVs, you can control each decoder's performance characteristics. CVs store information like the decoder's short address, long address, start voltage, mid-point voltage, loadable speed tables and many more. Once you have programmed these characteristics, the decoders "remember" them until you change them again. Most manufacturers use a similar set ...

Choose a locomotive that runs well on conventional DC power. Digital decoders cannot compensate for faulty motor operation, poor track pickup, etc. If you are not happy with the way your locomotive runs on regular DC power, installing a decoder will not make it run any better. If there are any mechanical issues with your locomotive, fix them before you install the decoder. Since you have to open up the loco anyway, do a tune up to get it running really well before you put in the decoder. Digitrax recommends using a conductive brush lubricant like Aero Car Technology's "Conducta" ...

The two "POWER IN" terminals on all Digitrax boosters & command stations are the power input connections. Digitrax recommends the PS514 to power the DC200 and DB150.  Set the voltage setting on the PS514 to 16.8v or 19v.  The PS2012 can also be used to power the DCS100 and DB150.  The "Y" cable provided with the PS2012 has an embedded 5 amp current protection.  The PS2012 can also be used to power the DCS200.  The "Y" cable is not suitable for use with the DCS200 since it has an 8 amp. output. When powering your layout, make sure that all polarities and ...

The UR92 is simple to install and begin using in your new or current layout. 1. In most cases a UR92 should be situated near the physical center of a layout and will typically cover a circle of about 300+ feet (~100 meters) across, which will be adequate for most layouts. Some layouts may require additional UR92s for adequate signal coverage. 2. Connect the PS14 DC power supply to UR92 via the DC power jack on the side. The green and red LEDs should blink and then the red LED should stay on. 3. Connect the UR92 to your working LocoNet ...

  There are three different ways to power the DS64.  Track power (Trk A and Trk B), Auxiliary power (AX1(-) and AX2(+)) and power through the rear modular power connector.  Connect the Trk A and Trk B screw terminals of the Power and Track Connections to the corresponding Rail A and Rail B track connections.  The PS14 power supply can be used with Auxiliary or the rear modular power connector.  The DS64 requires 300mA for proper operation.  Only one DS64 can be powered per PS14.  A generic DC power supply between 12-16vdc and 300mA can be connected to a DS64 ...

Installation: Figure 1 shows the general arrangement for connecting one or more LNRP's to configure a LocoNet based system for operation. Note that the LNRP's drive the power and Railsync signals on the "standard" LocoNet cable segments, so each LNRP should have a DC input of +15V to +18V at up to 250mA supplied on the side DC power jack. Note that the shaded cable connections are made from the protected network side connections of the LNRP units to the components that are on the "protected" or high reliability part of the System. The other solid cable connections are the ...

  Q:  How do you connect more than one DS64 to a single power supply like a PS14 to power them or do you need a separate power supply for each DS64? A:  One power supply can be used if it can provide adequate power for all the DS64s it is powering. The PS14 has a built-in circuit breaker; when it exceeds its capacity, it will shut down, cool off and then start up again. If you are experiencing this behavior then you need to add one or more PS14s to provide enought power for the DS64s you have connected. Our recommendation of one ...

The DCS100, 200, 240 and DB150 use several beeps and clicks that can be used as diagnostic tools that will help you debug a number of error conditions.   DCS100/200 Audible Sounds 1 Beep           DCS100/200 has powered on successfully or has sent a programming command. 3 Beeps         A loco address has been "purged" due to non-use. This is informational only and is normal. 4 Beeps         Booster short circuit shutdown. Fault Alarm. 6 Beeps         Command station already present in system. When two command stations are operating on the same system, you may experience unexpected results. 7 Beeps         DCS100/200 CMOS battery low ...

LocoNet System ArchitectureDigitrax LocoNet is a Peer to Peer local area network (LAN) designed specifically for model railroad operation.  System architecture is the biggest difference among DCC systems, the way the components of a DCC system communicate among themselves. LocoNet wiring is cost effective, flexible and expandable to accommodate almost anything you want to do with your railroad today and in the future.System ExpansionHere are some of the expansion possibilities available with LocoNet. With Digitrax LocoNet your DCC journey starts at the Main Station with your first “starter” set. From there, it’s up to you. You can add:  Mobile decoders ...

Life-Like Proto 2000 locomotives with number board lights have the number board bulbs wired to their 8-pin DCC plug using pins 4 and 5. This causes no problems with DC operation but causes a path from the rail pickup to the gray motor lead when a decoder is installed resulting in erratic operation and decoder failure.This is a known problem in the Proto 2000 GP60, SD60M and LifeLike GP38-2.  The DH165L0 uses a current limiter set to control one incandescent bulb on the front (FOF) and one on the rear (FOR) and putting the removed number board bulb on either ...

The Series7 Stationary (or Accessory) decoders are configured to not use, or need a CV Service Mode (SM) programming track. It is impractical to disconnect these fixed wired devices from a layout to configure on a SM track, unlike a mobile locomotive decoder. Series7 devices are configured when operating on a working LocoNet system to access all product capabilities. As detailed in the product Instruction Sheet (IS), the units have a number of Option Switches (OPSW's) that may be modified by; pressing the OPSW button and sending the appropriate SW# as Thrown or Closed. The IDSW button allows the setting ...

The Kelana Jaya Rail Line model is a DCC intense layout, using many Digitrax command control components to achieve the goal of training operators of the actual rail line. The railroad was built in the 1990's and many of the Digitrax devices used for the Kelana Jaya Rail Line model have been superseded with improved units. Components used for the Kelana Jaya layout: 28 Mainline turnouts 11 Yard turnouts 39 Tortoise switch machines 84 Dwarf signals (yellow/green, red/green, red/yellow) 38 Mainline block signals 38 Heavy duty SPDT switch relays Digitrax Components Used for the Kelana Jaya layout: 1 DCS 100 ...

What is it and how do I find a DPDT?It's an electrical switch; double pole - double throw (DPDT). Here is a schematic of a DPDT: More typically, they look like this: The DPDT is very common to model railroading and found at just about any store that sells electronics.  It comes in a variety of arrangements, with the most common being a DPDT Center-Off switch.  Analog OperationsIn the early days of Direct Current model railroading, reverse loops had to be controlled by hand, and the DPDT was perfect for the job.  The DPDT was wired in such a way ...

  My layout is in N scale, with an 85 foot double track main, a 12 track storage area, small yard, and engine facility. The layout measures 10 X 14 with two helices. There are a total of 34 engines, many of which are with their trains in the storage area. All of the already made-up trains (11) have two or three engines on them, ready to be brought up via a helix to run on the railroad. Currently, the road is divided into six parallel blocks (DC); 12 blocks in all. In the future, I plan on adding a ...

I am a 'newbie' to model railroading.  I have a 10' x 10' room put aside for my layout which will be basically a U or horseshoe shape going around three of the walls.  I am using Atlas code 55 in N scale. Since I'm starting from scratch, I want to do it RIGHT and that is why I've decided to buy DCC straight away. I want to run a maximum of 4 trains at once. I would like the capability of having two users (drivers) operating at the same time, but I want to manually set turnouts. I will ...

Security ElementsThe Digitrax Signaling System is organized around the concept of what we call "security elements", which are similar to what U.S. prototype railroads call "plants" or "interlockings". The Digitrax SE8C signal decoder displays aspects for up to 32 heads for 8 individual security elements (plants) using either a LocoNet Throttle or a computer with compatible software. When used with associated occupancy detectors and compatible software, the SE8C can be set up to protect the turnout with signals as shown by the example below. Note that trains can move from A to B, A to C, B to A or ...

Track voltage on DC (analog) layouts can be measured from rail to rail.  However, with DCC layouts that use direct home wiring as recommended by Digitrax, this method of measurement does not work with most voltmeters.Track voltage (output from the booster to the rail) on DCC layouts with direct home wiring can be measured as follows:1.     With the system powered up and with the TRACK STATUS LED on, use your throttle to select the analog address 00 and set the speed to 00.2.     With a multimeter set to the 20 volt DC scale, measure the voltage from RAIL A ...

  The first steam locomotive to pull a train appeared in 1804, although there were examples of vehicles operating on rails even earlier than that.  As railroad technology captured the imagination of investors, it also captured the eye of the general public.  It was inevitable that someone would make a child’s toy of this wonderful thing.  Models of trains would evolve like any other technology.  As railroad technology advanced, so did the quality of model trains.  What started with crude blocks of wood evolved into cast iron “floor toys”; these crude trains were meant to be pushed along on the ...

One of the basic problems encountered with command control systems is when things simply are not working.  Period.  Even after vigorous exhortation on your part, and perhaps even some enthusiastic train table banging, nothing is running.  At this point, it is time to gather your wits and your patience for a debugging session.   The first step to determining how to proceed is to determine if the problem with the electronics or with the layout?  The tendency is to blame the electronics, after all it is a black box.  But don't jump to conclusions so quickly! Be patient and follow the ...

When purchasing a loco that says its decoder ready, exactly what is implied? Does this mean wires can be wired into the numbered locations and nothing else is needed except to remove jumpers?As with any technology, it takes time for standardized terminology to become established.  Although DCC is almost twenty years old, there are still some gray areas with descriptions.  It really depends upon the individual manufacturer, and within one manufacturer's product line there can be variances also.  There are several types of locomotive decoder installations and you may find that these terms are not applied by all manufacturers in ...

Hooking up the UP5's Power Supply (Optional but highly recommended to make sure LocoNet voltage is adequate to control large layouts)The optional power supply (PS14) can be connected to one or more UP and/or UR panels to provide additional power for LocoNet operation and for battery saving power to any Digitrax throttle that is plugged into any of the powered panels.1. Plug the PS14 into the DC jack located on the side of the UP5 circuit board.2. Connect the +Common point on each additional board (located between the two LocoNet jacks) to the powered board with 22AWG wire (Figure 2). ...

Q:  What is the output voltage to the LED's and the inline resistor value. A:  The typical output of the SE8C ranges between 4.5 and 5.0 volts DC; it varies a bit depending on conditions. The signal mast base kit (SMBK) and the terminal strip mounting kit (TSMK), both have 100 ohm resistors built into the base.

Can the DS52 be powered directly from a 13.8 v DC external power supply instead of the rails? No. Screw Terminals 4 & 5 are used to not only supply power to the DS52 from the track but also are the path that is used to both program the DS52 and to operate the DS52 via a throttle or computer program.

My signals are supplied with current limiting resistors and require 12v max to operate. What are the voltage outputs from the SE8C and does this differ depending on the supply (15V AC or 12V DC). The output voltage is 5 volts, regardless of the input power. It is powerful enough to drive LED's, but it cannot handle incandescent lamps.

If Engine "B" is operating on the main line when Engine "A" enters the main line from the auto reverse loop, will Engine "B" change direction or will Engine "B" continue its journey?With DCC, the reversing of locomotive direction takes place within the locomotive, and only when it is commanded to do so.  If you grew up in a DC model railroad world, it's easy to forget this feature of DCC.  When Engine "A" transits the reversing section and returns to the mainline, any "change" will have been to coordinate the track polarity of the DCC track current present on ...

Q: I have 2 Broadway non-sound F7 DC locos. I bought 2 DH163IP decoders for them. However the decoder is too large to fit into the 8 pin plug provided on the PC board in the loco. A: We recommend a DZ146PS for those locomotives. They will fit in the space available. Don't be confused by the Z designation of this decoder, it is rated at a full 1 amp to run most HO locos but it is small enough to fit in Z scale locos.

Zephyr Rear Panel Connections1. RAIL A & B - for connecting the DCS50 to the rails on the layout.2. PROG A & B - for hooking up the programming track. Section 16.1.3. JUMP 1 & 2 - for connecting one or two smooth DC power packs to the systemfor use as additional throttles. Section 25.24. POWER IN - plug in the PS315 here.5. LOCONET PORTS A & B - for connecting the DCS50 to other LocoNetdevices for expanding your layout.6. YOUR LAYOUT -  You can connect Zephyr to most existing layouts.

"Turnout" is a civil engineering term for what railroaders call a "switch".  In the model railroad environment, we often use the word turnout to avoid confusion with the electrical term "switch".  On the railroad, throwing a switch usually only means one thing, while "Throw the switch" on a model railroad could mean operating a light switch.Probably the best answer is to consistently use one type of turnout.  The notion of a "DCC Friendly" turnout is a myth; the standard answer in the past has been: "If it worked on DC it will work on DCC". In the end, which turnout ...

Can I combine the power input requirements for PM42's with other units for economy?Digitrax recommends each PM42 module to have its own seperate power source. The criteria for choosing a power supply for the PM42 is any power source that can deliver 12-15V AC or 13.8-15V DC with a minimum of 125 ma. The Digitrax PS14 meets the minimum power requirement of a PM42.It is possible to power more than one PM42 from a single power source. When powering multiple PM42's special care must be taken to insure identically phasing of all PM42's and ample current availability to power all ...

I have multiple reversing districts, do I have to buy a separate booster for each one?You can run more than one reversing district off a single booster, but there is the potential problem that might arise is if you have more than one set of wheels crossing more than one set of gaps at the same time. In this case, the booster will detect a short and shut down (unless the polarities just happen to be matched up in which case you won't see a problem). We recommend that you use the AR1 Auto-Reversing unit or the auto-reversing capability of the ...

The Digitrax DS51K1 Stationary Decoder is for use with single coil Kato powered turnouts only.  These turnout include the following: 20-202 N Scale #6 Left Hand Powered 20-203 N Scale #6 Right Hand Powered 20-210 N Scale Double Crossover Powered * 20-220 N Scale #4 Left Hand Powered 20-221 N Scale #4 Right Hand Powered 20-222 N Scale #2 Wye Powered 2-860 HO Scale #6 Left Hand Powered 2-861 HO Scale #6 Right Hand Powered 2-850 HO Scale #4 Lef Hand Powered 2-851 HO Scale #4 Right Hand Powered * The 20-210 Double Crossoever requires a total of 4 DS51K1 ...

The actual track voltage supplied by the DB200 can be adjusted. To adjust the track voltage, you must open the DB200 case (this will not void your warranty). 1. Remove the DB200 input power & disconnect all DB200 leads. 2. Remove the two screws on the top and bottom of each side of the case. 3. Slide the gray front panel off the DB200. 4. Be careful to avoid disturbing components other than the ones described below. 5. Locate the small yellow trimmer potentiometer behind the LocoNet B Jack and Scale Switch. 6. Use a small screwdriver to turn the ...

  There are two methods of providing power to the DS54: from the rails and from an auxiliary power source. The DS54 can be powered from the rails however, Digitrax strongly recommens that the DS54 be powered from an auxiliary power supply capable of delivering 12-16 volts (ac or dc) at 300 millamperes for best results.  Powering the DS54 from the rails reduces the current available to power locomotives and lighted rolling stock.  The auxiliary power supply connections are the red (+) and black (-) wires. Note: Digitrax recommends the PS14 Power Supply for independently powered DS54’s. Multiple DS54’s can be powered from a single power ...

The installation instructions indicate that a PS14 be used to power the PM42. Is it necessary that I cut the wire from the PS14 so that is can be attached it to the 44-pin connector, or is there a male adapter available for the connection? Yes, currently you will need to cut the wire, strip the ends and solder them to the edge connector of the PM42. Please see the related articles below. Which lead from the PS14 is to be soldered to terminal 3 on the 44-pin connector and which is to be soldered to terminal C? The PM42 ...

Many thanks to Dick Sutcliffe, Superintendent BR &T Railway Co. for this application note!Install the DN121 in the tender   1. The tender is easy to open by removing two screws so you can pull the decoder out and put in a plug when running on DC layouts.   2. Use a piece of styrene to raise the decoder off the weight.   3. Notch the front edge of the tender frame to bring the wires through to loco (all power pick up is in the loco).   4. Split the loco frame to isolate the motor brushes, remove the contact springs in the ...

I have a 4x8 layout, I want to run 2 or 3 trains. I will operate the layout by myself or with possibly one other operator. It's a really basic operation. Which Digitrax set is best for me?The Zephyr Xtra Set will probably do what you want. You will need the Zephyr Set and mobile decoders for the locomotives. You can connect up to 20 throttles to your Zephyr Xtra Set so that adding another operator is as simple as plugging in another throttle. You can also use one or two smooth DC power packs as throttles for additional operators to run trains ...

"I had two Proto 1000 RDC's that I wanted to convert. After opening up the first one, I did what I usually do, yanked out all the circuit boards and such, threw them over my shoulder and commenced to hardwiring the decoder into the unit. Everything went fine, and I took it with me to a friend's railroad to enjoy what I had done. After I got there and played a bit, my friend commented that wasn't it neat that the Proto 1000 series has wiring connections on the circuit board in the locomotive, making things considerably easier. Wiring points?" ...

How can I remotely monitor the input and output status of a section of the PM42 that is configured to act as a circuit breaker at a remote location? The final output stage, of each section, of the PM4 or PM42 is a DPDT relay. The contacts of this relay act in a similar fashion as the contacts of a DPDT toggle switch. These inputs and outputs can be monitored in a variety of ways. Three common monitoring devices are a LED (with appropriate resistor), a lamp (of the appropriate voltage), or an optical coupler (with appropriate resistor). The following ...

I want to run a small 12V -16V AC motor via DCC and am not sure if you have a decoder for this and if so how to connect up.For Variable Speed:Some Digitrax decoders, such as the DG583S, can be programmed to operate AC motors. When you program CV61 to a value of 004, Digitrax decoders with split field motor drive capabilities will convert their motor leads to drive a "split field" AC motor instead of the default DC motor. This lets you run Maerklin 3-pole AC motors and similar motors in a number of locos built in Europe with ...

We recommend testing your new SE8C prior to installation on your layout. The following testing procedures will help familiarize you with the general operation of the SE8C. Track power needs to be ON, a working LocoNet connection and a throttle or PC running DCC control software. Pre-Installation Set-Up 1. Solder one wire from a 12V AC or 15V DC power supply to Pin 3 and the second wire from the power supply to the Pin C on the 44-Pin edge connector; this powers the SE8C. Digitrax manufactures the PS14, which is appropriate for this installation. Multiple SE8Cs can be powered ...

The actual track voltage supplied by the DCS100 can be adjusted. To do this, you must open the DCS100 case (this will not void your warranty). 1. Remove the DCS100 input power & disconnect all DCS100 leads. 2. Remove the two screws on the top and bottom of each side of the case. 3. Slide the gray front panel off the DCS100. 4. Be careful to avoid disturbing components other than the ones described below. 5. Locate the small yellow trimmer potentiometer behind the LocoNet B Jack and Scale Switch. 6. Use a small screwdriver to turn the potentiometer clockwise ...

The actual track voltage supplied by the DB150 can be adjusted. To do this, you must open the DB150 case (this will not void your warranty). 1. Open the DB150 case. Remove the black screws on the top and bottom of the case and slide the gray front panel off. Be careful to avoid disturbing components other than the ones described below. 2. Locate the small yellow trimmer potentiometer behind the LocoNet B Jack and Scale Switch. 3. Use a small screwdriver to turn the potentiometer clockwise to increase the scale voltage setting. Turn it counter clockwise to decrease the ...

CV # Use Decoder DefaultValue ValueRange CV01 Address All 01-9999 01-127 * CV02 Start Voltage All 001 0-255; higher is more voltage CV04 Acceleration Rate All 000 0 - 31 CV04 Deceleration Rate All 000 0 - 31 CV05 Maximum Voltage Gen4 - 0 (disabled) 1 - 255; lower is slower CV06 Midpoint Voltage All 0 (disabled) 1 - 255 CV07 Manufacturer's Version ID All Variable - CV08 Manufacturer's ID, Decoder Reset All FX3 129 08 to reset,09 reset leave speed tables CV13 DC Functions "On" FX, not on FX3 - See decoder documentation CV15 Decoder Lock FX3 000 See ...

I have many many loco's. How do I determine which mobile decoder to select for each one? First, modelers with many locomotives often become bewildered at the prospect of converting all of their locomotives to DCC. Take it one step at a time. Consider that you are not operating all of those locomotives at the same time; start by gradually converting your locomotives, beginning with your favorites. Digitrax maintains a list of suggested decoders for specific locomotives on our website.  The Digitrax Decoder Selector can be found here: http://www.digitrax.com/products/engine-matrix/decoderJust because your particular locomotive is not listed does not mean that ...

1. Carefully remove the locomotive’s shell from the frame. Notice the orientation of the shell to the frame (Figure 1) so that you can reinstall the shell correctly. 2. Remove the dummy plug from the locomotive’s DCC-ready socket. (Figure 2) The jumper plug allows the loco to operate on a standard DC track or in analog mode on a DCC track. Pin 1 is marked for proper orientation of the decoder. 3. The DZ125PS has a short, 1" harness with a DCC 8-pin plug on the end of it. The plug is oriented so the pin for the orange wire ...

I have an extensive collection of Z-scale locomotives (some are older (15-20 years) Z-Scale Maerklin equipment).  Can I convert the locos to Digitrax, or must I buy some other brand of loco to use Digitrax?Maybe yes, maybe no.  It depends upon the size of the locomotive and how much space is inside.There are several Z-Scale layouts that use Digitrax decoders.  Z scale railroaders are very persistent and precise so, they are often able to install decoders where members of other scales would fear to tread.  Digitrax continues to design smaller and smaller decoders aimed at the Z scale market.  Z Scale ...

The Mode Switch: The Mode Switch next to the Green LED is used to toggle back and forth between MS-100 mode and PR2 Programmer Mode. The Green LED will wink once per second if in the MS-100 Mode or toggle every second when in the PR2 sound programming mode. The Loconet Termination Switch: The switch next to the error LED is used only in MS-100 mode to activate the Loconet current source termination feature. This switch is active ONLY when a command station is NOT connected to the Loconet and the red LED is solid on indicating there is no ...

  Digitrax Duplex Wireless Functional diagnosis and debug process:   Duplex Background:  The Digitrax Duplex radio system is a two-way RF radio link connecting wireless throttles (DT402D & UT4D) via a UR92 onto LocoNet.  It operates on one of 16 user-selected channels in the 2.4GHz Wi-Fi frequency band.  FCC rules requires that all WI FI devices including the RF24 Duplex transceivers (part of Digitrax Duplex throttles and the UR92) operate co-cooperatively in this 2.4GHz band and have to accept whatever wirelessenvironment is present.  This means that there is no guarantee that Digitrax Duplex will work in all situations or that it will ...

Q: I am building a new DCC layout that will include a logging spur that is simply a single long piece of track with no loop. I want to have a train go back and forth on this track which automatically reverses when it gets to each end. While the AR1 was designed for reversing loops, can it be wired to simply reverse a train on a straight piece of track? A:  Not in the way that you intend. One of the interesting problems with DCC is that we often still think in terms of DC, where the track polarity ...

Direct Home Layout Wiring Digitrax strongly recommends direct home wiring where each power district and its booster are electrically isolated. This method of wiring has safety advantages and makes troubleshooting problems easier. In addition, direct home wiring makes detection work more prototypically. With direct home wiring, the BDL168 can determine and indicate whether any of its 4 zones is powered or not (possibly short-circuited) even when there is nothing on the rails in the detection sections. The BDL168 factory-set logic causes the detection sections to show "occupied" if the associated zone's power is off (because in this case, detection is ...

  I have an "old" vintage mid 1970's Atlas Turntable and I need to know how to wire the bridge track using DCC. Does it need an autoreversing unit or not?No. The Atlas H0 turntable is an evergreen for the model railroad hobby. It was easy to install and simple to wire, making it quite popular.Power is fed to the turntable bridge by connecting the track power feeds (black and red) individually to two screw terminals; these terminals are built into the portion of the Atlas turntable base which also includes the turntable manual crank handle. The turntable itself is ...

Digitrax Query Mode: The new generation of Digitrax Advanced Command Stations and other new products from ~October 2016 onwards include some convenient new self-diagnostic and external diagnostic capabilities and methods, to help keep LocoNet systems and devices healthy and working optimally, without requiring additional tools. The DCS240 and DCS210 Advanced Command Stations include “Query Mode” diagnostic information that can be interrogated or read-out using enhanced capabilities of DT500 throttles. Advanced Command Station Query information is grouped into six broad groups of data/diagnostic information displayable by a DT500/DT500D: “Lnt”: LocoNet Device Type/product info “ELE”: Device Electrical information, voltages/currents, etc. “Lnt”: LocoNet ...

Resetting Factory Defaults You are unlikely to encounter a problem that will require a factory reset. One such instance may occur if you set a password for your Duplex Group name and forget what it is. Resetting to factory default condition is an easy way to correct the situation. Note: If you have more than one UR92 in your layout, you will want to disconnect all of them to do a full factory reset on each unit as follows. Once they have been reset, reconnected to your LocoNet, and allowed to renegotiate a common Group name; you can change the ...

This article courtesy of Ken Bessler, concerning installation of a decoder into earlier Kato C4400W's.  Current produiction of these locomotives use DN163K1C or similar board replacement decoder.I wanted to convert my 2 new Kato AC4400CW's to DCC but there were several problems:1) The recommended PnP decoder, DN163K1a has a chip right where a shell component is. Using this decoder requires shaving off the plastic retainer clip under the exhaust stack. IMHO this is not good as it leaves too little support for the stack.2) My dealer was out of stock of the PnP decoders.3) A quick look inside the loco shows ...

Characteristics Controlled by CV61:Some Digitrax Decoders use CV61 (one of the manufacturer specific configuration variables) to give you the following options:  Non-Directional Headlight Operation, Transponding Enabled or Disabled, & Split Phase Motor Drive for Märklin AC and Lionel Type motors.The look up table below shows the effects of different CV values that you can program into CV61.  CV values are shown in hex & decimal are the same in this case.TABLE 61: CV61 Values CV 61 Value Non-directional headlights Transponding Split Field Motor/AC 00 No No No 01 Yes No No 02 No Yes No 03 Yes Yes No 04 ...

Zephyr and systems using the DT400 will automatically program 4-digit address' with no math required. Those using other systems must manually program a 4-digit address. If you want to program a 4 digit address you simply cannot take the desired locomotive address and split the number and stick it into CV17 & CV18. The following example will NOT work: Locomotive 2345 CV17 = 23, CV18 = 45 – This isn’t how 4 digit addressing works. This method WILL work: Here is a simple method for figuring out what values belong in CV17 & CV18: The desired locomotive 4 digit address ...

Common Rail Wiring Many older model railroads use Common Rail wiring because they were initially wired to operate with electrical toggle switches. Conversion to DCC is possible with Common Rail, but it is not recommended. Whole layout common rail is a method of wiring layouts where power districts and their boosters are electrically connected using a common rail or common power bus return wire. Whole layout common rail wiring is a disadvantage when it comes to detection systems since detectors cannot independently monitor whether zone power is on or off so they can't tell whether occupancy detection is working in ...

I have an older Rivarossi Heisler that I have just installed a decoder in. I have 2 other Rivarossi engines, older, with decoders in them and they work. I use them as a template. Anyway, I can't get the Heisler to run. I have the orange wire at one side of the motor and the gray at the other. The red is soldered to the frame and the black is connected to the front screw where I disconnected the light etc. I just soldered the wires together. The motor is OUT of the frame so no short can happen. Can you ...

The DB200+ is the 8 amp booster. It has NO command station capability. This booster was designed for adding power to layouts that run lots of locos and for large-scale layouts where power requirements are heavy.DB200+ Control PanelNOTE: DB200+ front panel graphics may vary from those shown here.  Internally the booster is the same. These instructions are written for both versions of graphics as well as the DB200+ OPTO optoisolated version of the booster. About the Green Jumper WireEvery DB200+ is shipped with a green jumper wire on the front panel Booster Terminal Plug connecting Synch & Ground or ‘Config ...

I have a DCS50  Zephyr system.  I'm having a great deal of problems with it when I try to run (2) loco's equipped with LOK SOUND and DCC decoders (by ESU).  What happens is that it cuts in and out 3 to 5 times on each revolution of the train. I see it cutting out on turnouts sometimes, but not on straight track.  And sometimes when the loco's are on a hard pull, like at a sharp uphill curve.  When they cut out it just isn't the loco's, but the entire railroad.With the addition of the sound electronics, power consumption ...

I have several old brass locos and they have Pittman motors. I have tried DH163 Decoders and blown two. I believe that they draw excess current that exceeds 1.5amp cont. Is there an HO mobile decoder with the same size physically as DH series, but has higher current ratings? Suggestions? While it is possible that the motor may be drawing too much current, it also may be possible that the motor brushes are not isolated from the frame of the locomotive. It also would be helpful for you to determine the stall current of the locomotive to see if the ...

The DCS240 uses different combinations ofthe PWR, PROG, NET, TRACK STAUSand USB indicator to provide a visual indication.  The indicators can show what mode the DCS240 is in as well as errors and indications.   Indications Meaning PWR GREEN winking off every 3 seconds as a “Heartbeat”  The DCS240 is powered on in Command Station Mode, Normal Operation Mode.  PWR RED winking off every 3 seconds as a “Heartbeat”  The DCS240 is powered on in Booster Only Mode, Normal Operation Mode.  PWR off blinking on GREEN or RED every 4 seconds  The DCS240 is in SLEEP mode. (GREEN = Command Station Mode) ...

               Decibel measurements on SDH164D Digitrax Sound     Sound level is a logarithmic measure of the effective sound pressure of a sound relative to a reference value. It is measured in decibels (dB) above a standard reference level. The commonly used "zero" reference sound pressure in air is 20 µPa RMS, which is usually considered the threshold of human hearing (at 1 kHz).   Examples of some Loudness rating in both Pa and dB           Hearing damage (over long-term exposure, need not be continuous)                      0.356 Pa                   85 dB Handheld electric mixer                                                                                                                                  65 dB TV (set at home level) at ...

DCS50 Zephyr - Quick Start Guide 1. Unpacking Your ZephyrUnpack your box and locate the DCS50 Command Station and the PS315 power supply. 2. Before You BeginBefore proceeding to the next step, make sure the Throttle Knob is turned all the way to “STOP” and the Direction/ Brake lever is set to “BRAKE”. 3. Connecting the Pieces TogetherOn the back of the DCS50, locate the gray screw terminal strip. On this strip, locate the two terminals labeled “RAIL A” and “RAIL B”. Attach your layout track wires to these terminals. It does not matter which is which. 4. Turn on ...

This application note concerns the DA120 deocder, which began production in 1997 and was discontinued around 2000. The DA120 decoder that is being shipped with the Atlas locomotives has certain variables that are available for programming. These guidelines are provided for those who are using the Wangrow or Lenz systems for programming the DA120 decoders.The following variables were selected by Atlas to be offered in the DA120. These CV's are available to be programmed on the DA120:    * CV01 - Address    * CV02 - Start Voltage    * CV03 - Acceleration Rate    * CV04 - Deceleration Rate    * CV05 - Maximum ...

IPLING From time to time the latest DT602 family throttle firmware will be updated and will be posted on the product support page.  These updates may slightly modify the DT602's operation, based on customer feedback/requests and priority support issues discovered. If you are happy with the operation of your DT602, and have no issues or new features you may want, it is not required to perform an available update. All DT602 family throttles should only be firmware updated or IPL'd while plugged directly into a working LocoNet. The Digitrax provided DMF file for field updating DT602's can be used for IPL of any ...

Before sending your Digitrax Command Station or Booster in for repair try these simple steps to see if you can “bring it back from the dead” and save a possible trip to the repair shop.1. Nothing is respondingIf there are NO LEDs lit on the front panel of the Command Station or Booster: Check the power supply to the unit to make sure that it has not been knocked loose in the power socket and that the socket is powered. Check the connections from the power supply to Track A and Track B connections on the front of the unit ...

Q: I connect my DT400 to my DCS100 and it works fine, but when I add a DB150 working as a booster the DT400 stops working. What is wrong? A: A number of things may cause this, so you can use the diagnostic features of the DT400 to solve this problem. Experience has proven that the most common LocoNet problem is related to pins 3 and 4. By following this diagnostic procedure, you can narrow down to the source of the problem. Starting with DT400 without a battery [The throttle has no battery for this test to assure it executes ...

Decoders with FX function features have 4 user configurable, independent special effects generators. All current production Digitrax Decoders use FX3 functions so this article is not applicapable to these decoders. CAUTION: Decoders with FX3 function generators use different CVs to control the decoder outputs. All current production Digitrax decoders use FX3 function CVs. Before using these CVs to program your decoders make sure that they are FX and not FX3 decoders.The Real FX effects are set up by programming CV values as described below.F1/F2 NOTE: If using DH142, DN142, DN141K2, DN149K2 series decoder, when F1 is set up for FX, ...

Note: This page applies only to Challenger SetsOur customers continue to come up with different combinations & configurations to suit their individual needs so, feel free to customize your own CTX/CTY!Some users choose to hard wire 4 throttles for the 4 different channels so that the throttles are not able to change locomotives within the group.Parts List:Radio Shack Part NumbersSW-1: 6 Position Rotary Selector Switch, # 275-1386, CTX 1, CTY 1C1-C4: 0.047uf Disc Ceramic Capacitors 50v, # 272-134, CTX 2, CTY 2D1-D5: 1N4148/1N914 Small Signal Diodes 50v/100ma, # 276-1620, CTX 1, CTY 2SW-2/SW-6: Normally Open Push Button Switch, # 275-1566, ...

Current production Digitrax decoders use the following numbering system: The first character means that it is a digital decoder. This is always a “D”. The second character indicates the decoder’s physical size. This is based on the smallest "scale" the decoder is designed to fit. This will be a Z, N, H, or G. The third character is the current rating of the decoder. This will be a 1, 2, 3, 4 or 5. We designate 1.25 & 1.5 amp decoders as 1s and 3.5 amp decoders as 3s for simplicity. The fourth character indicates how many functions, including directional ...

I am not sure what example railroad he is talking about.    ZHere is a control panel display example for our example railroad using Railroad & Co.: This is the way that an actual railroad dispatcher would control our example railroad. Although the three sidings are not controlled by the dispatcher, they are still shown because the positions of their points have a material affect upon train operations. A train approaching an open turnout would be put at risk, so the position of these turnouts is considered to be part of the control system. These sidings would be manually controlled by ...

I think this is a duplicate  Z  Needs to be beefed up or discarded. Command Control systems, both analog and digital, allow you to simulate prototypical train operation on your model railroad. With Digital Command Control you can operate multiple locomotives independently at the same time on the same section of track without a computer and without blocking or other complex wiring schemes. Digital Command Control systems use digital data packets to communicate commands to decoders that control locomotives and turnouts on the railroad.

Command Control systems, both analog and digital, allow you to simulate prototypical train operation on your model railroad. With Digital Command Control you can operate multiple locomotives independently at the same time on the same section of track without a computer and without blocking or other complex wiring schemes. Digital Command Control systems use digital data packets to communicate commands to decoders that control locomotives and turnouts on the railroad.

The front panel of the DCS50 Zephyr has a throttle knob & direction control lever, indicator lamps & display, which give status indications and operate your railroad. Before you select and run a locomotive, take a few minutes to look at the DCS50's controls and display.1. The Throttle Knob is the large silver and black knob on the right side of the DCS50. The Throttle Knob controls locomotive speed from STOP to FULL speed. Turn it clockwise to increase speed and counter clockwise to decrease speed.2. The Direction Control Lever is the small silver lever (located on the left side of ...

  Q:  What is the basic configuration and Option Switch (OpSw) settings for each of the four sections of the PM42 when configured for automatic reverse section control? A:  The PM42 is a 4 section multi-purpose device where each of the four sections can be individually configured to act as either a circuit breaker, or auto-reverse section controller or DPDT relay. When configured as an auto-reverse section controller, the PM42 adjusts the rail phasing of the reversing section it controls whenever a locomotive, or car with metal wheels, bridges the gaps between the rails of that reverse section and an adjacent non-reversing section ...

While the DT400 series throttle is being used tetherless, there are occasions when you may want to disable the throttle's controls to prevent accidental commands being sent to the railroad. For example, your train is in a siding waiting for another train to pass. You put your throttle in your pocket and go take a break. By locking the throttle controls, you will not be able to accidentally start your train if you bump your throttle knob or press the Y + Key . To lock the controls on your DT400 1. Press both the Y + and the N ...

DT402 & DT400 Series Throttle - Locomotive Speed Control To control the speed of a locomotive:1. Select the loco address on either throttle2. Turn the throttle knob clockwise to increase speed and counterclockwise to decrease speed or3. Use the Y + & N- Keys to increase and decrease speed.The % of full speed will be displayed in the text line of the display on the L or R side depending on which throttle is controlling the loco. The % of full speed will also be displayed on the bar graph above the text area in the display.If a loco address is ...

Even though an individual locomotive is part of a consist and you can’t control its speed and direction separately from the consist, you can still control its function outputs independently as follows:1. Press the LOCO Key and select the address of the locomotive that is a part of consist for which you want to control functions.2. Press the LOCO Key again to select the loco address to your throttle. The speed value will show “cn” to remind you that you can only control functions on the loco and not its speed.3. Use the steps described above to turn on or ...

I have my Kato Switches hooked up to a standard switch panel with toggle momentary switches. Can I hook up the DS51K1 stationary decoder in addition to this wiring? In other words, if hooked up the DS51K1 to the Kato Switch Machine that was already wired to another source to throw the switch, would the momentary power damage the decoder when it is operated by the standard control panel? I would like to operate these switches via DCC and by the control panel. In this situation, it would appear that using a DS64 configured for Kato turnouts (solenoid turnouts) and ...

The DT300 Throttle is a full-function hand held controller that includes 2 independent throttles and a common keypad to control up to 9 functions (0-8), turnouts and programming. The DT300 Throttle does not require a battery in normal walk-around operation, but if you do not install a battery, the throttle display will be off while you are unplugged from the system. The DT300 requires a 9 Volt battery for infrared operation.   The DT300R requires a 9 Volt battery for radio operation.

  To control the speed of a locomotive with your DT300:1. Activate the loco address on either throttle by either pressing the C/R key or the R THROTTLE knob to gain control of the loco on the right side of the display and the L/t key or the L THROTTLE knob to gain control of the loco on the left.2. Turn the THROTTLE knob clockwise to increase speed and counterclockwise to decrease speed or3. Use the Y/+ and N/- keys to increase and decrease speed. The percentage of full speed will be displayed in the text line of the display ...

Q: How do I use the AR1 and automatically control the turnout? I'm confused here. It is good that the AR1 controls the switching of the track power for a reverse loop automatically but it seems the turn out direction also needs auto control. Am I missing something here? Need help understanding...Please explain. A: The AR1 is handles correcting the track polarity mismatch when a reversing section is encountered by a locomotive. When the polarity inside the reverse section does not match the polarity outside the reverse section, the AR1 detects the short circuit and flips the polarity so that ...

I have an old Diamond Scale turntable; this turntable uses a rotary switch to select which stall or track you want to align the table with. It is basically a closed connection, or relay connection to select the track you want. I was wondering if it was possible to use the DS64 to create a closed connection (relay output) to activate this connection for the turntable position. Basically I want a relay output from the DS64 to be addressed by my DT400. Using throttle control This should be fairly easy, but not in the way that you envision it. The ...

The SE8C uses switch addresses to operate the signals, so you may need to change some factory settings to make it work in conjunction with turnouts that are already installed on your layout. Be sure that when you configure the SE8C that the switch address ranges you select to operate the signals do not conflict with other devices, like DS64s, that are already installed. We strongly recommend that you keep accurate documentation of the address ranges used to control all devices on the layout to avoid conflicts that might cause problems. Without this record it can be very difficult to ...

Function Controls F9-F12 Some Broadway Limited Locomotives use Functions F0-F12 when running in DCC mode.  In some cases F9-F12 do not respond properly.  To remedy this problem, simply reset the locomotive to the factory default setting per the Broadway Limited Instructions you received with your locomotive. Note:  F9-F12 are accessible on the DT400 throttle when used in conjunction with the DCS100 command station.

These are the Function buttons for sound control:

The DT400 and DT400R are full function hand held throttles that include 2 independent throttles and a common keypad to control, up to 13 functions (0-12), turnouts and programming.

Changing Locomotive Direction with DCS50 Zephyr:Move the Direction Control Lever [2] to FORWARD or REVERSE to change the direction of the loco address running on the throttle. To determine the direction of a loco that is not moving, simply look at the position of the lever. You can move the lever quickly past the BRAKE position with no adverse effects. If you change direction while a loco is moving it will slow down to 0 speed and then speed up to the commanded speed according to the decoder’s programmed CV (configurable values) for deceleration and acceleration.

UT4 Function Control Keys and How they WorkThere are 8 physical keys used to control functions F0-F12 on the UT4 throttle. F1 through F6 and F7-F12 share the same keys.  You will see F1-F6 in black print and F7-F12 in blue print to remind you that you will need to use the SHIFT key to access F7-F12. To use functions F7-F12 you must press and hold down the SHIFT key on the lower left row of the throttle as you press the F7 through F12 keys to activate any functions available on those functions. All the UT4 functions work like other Digitrax throttles. ...

Q:  Can one decoder be wired to run two engines, such as an A-B unit that do not get separated? A:  Yes, as long as the current capacity of the decoder is not exceeded. We recommend that you check the stall current of both locomotives before installing a decoder that will handle both. Note that you can control two locomotives with decoders as a consist or MU lash-up so that you do not have to use a single decoder to control both locos.Issues we have seen with using a single decoder to run two locos together:1.  Make sure your wiring between ...

Q:  We will be using your SE8C's for signaling. Should we use the SE8C to control our slow motion switch machines, or should we use your DS64s for that function? A:  Both products will do the job. How you plan to use them on your layout will help you decide which is better in your situation. Here are some things to consider in making your decision:The SE8C will drive 8 slow-motion switch machines while the DS64 will drive four. If you have a large number of switch machines in a specific area, the SE8C might be a better choice, since the ...

Remember, the EXIT Key will take you back to the Fn Mode for Normal Loco Operations.

The master volume control CV is CV58, its values range from 0 to 15.  The factory default value for this is 09.Digitrax SFX decoders have a factory default value of 09 set for CV58.  This works well for 32 ohm speakers.The decoder will reset to this value whenever you do a decoder reset of CV8=8. Digitrax SFX decoders built for use with 8 ohm speakers should have this value changed to 4 or 5 for best operation value of 4 or 5, since the decoder may not supply enough current at high volume/drive levels.Your results may also depend upon track voltage present. Kato USA says ...

The individual signal heads are connected to the SE8C with 10 conductor ribbon cables. Depending upon which way you assemble the ribbon cables, Pin 1 can be either the brown colored conductor (called Phase A) or the black colored conductor (called Phase B). To maintain your sanity it seems easiest to be consistent when choosing either conductor, but there is no "wrong" answer. In the example below, the ribbon cable is being set up using the brown cable as Pin 1, thus it is being configured as "Phase A" The table below shows the various connections which result when setting up ...

DT402 & DT400 Series Throttles Locomotive Directrion Control There are two ways to change the direction of the locomotive address from the DT402 and DT400 Series Throttles:Double click the Throttle Knob to reverse the direction of a locomotive running on that throttle:1. Double click the Throttle knob that is controlling the locomotive. Press down on the knob quickly two times (2 distinct key presses within 1/2 second).2. The locomotive selected on that throttle will change direction.3. Repeat the process to reverse again, etc.4. Double clicking the R Throttle knob will reverse only the locomotive running on that throttle. Double click ...

The easiest most cost effective way to add automatic reversing to one section of your DCC layout.

5 Amp Digital Command Control Decoder for Large scale locomotives Retired in 2002

1.0 Amp (1.5 Amp Peak) Mobile DCC Decoder with 9 pin plug, also available as DH120P with DCC medium plug, DH120PS with short DCC medium plug, and DH120AT with Athearn Clips Retired in 1998

1.5 Amp Digital Command Control Decoder. Also available as DH121P with a DCC medium plug, DH121PS with a short DCC medium plug, and as a DH121AT with Aethern Clips. Retired in 2002

1 Amp Digital Command Control Mobile Decoder. Also available as DH140P with a long DCC medium plug, DH140PS with a short DCC medium plug, and as a DH140AT with Athearn Clips. Retired in 2000

1.5 Amp Universal Digital Command Control Decoder. Also produced as and OEM product HAG 501 Retired in 2002

DH142 Series 1.5 Amp Digital Command Control Decoder. Also available as DH142P with DCC medium plug, DH142PS with DCC short plug, and as DH142AT with Athearn Clips. Retired in 2002

Fascia mount Switch control device. Wire to DS74 input cable, or use DSXC4 for plug and play.

9G mini servo system for turnout or motion control.

Eight Servo LocoNet Stationary/Accessory decoder for turnout control.

I still don't understand the bus stuff. Wires come from the command or booster and run under the track layout and have feeders coming off. I understand these feeders connect to the track. Where do you connect the wires coming from the power source? (ie: Zephyr) Is there a particular place on the track layout it is to connect to?The power connection for the command station and boosters is directly between the power supply and these units.  It is not connected to the track!  Please see the diagram below: In this case, the Zephyr is the Command Station and Booster ...

The PM74 OPSW41= C will change the 4 DS1-4 led display, so each DS led now reports the same way the PM42 leds did. This is a Legacy option provided for users who want the PM74 indications to be similar to the PM42. The default OPSW41 =T has the DS led light ON for resistance Occupancy detection within that DS, and will flash when a Transponder is present in that DS. These 2 additional DS detection capabilities and indication were NOT present in the PM42. Whatever the OPSW41 state is, LocoNet messages will report Power state/action,  Occupancy and Transponding messages to a connected LocoNet, ...

The DT400 can control Functions 1 - 12.Note: DT400 can access F0-F12 when used with the DCS50 Zephyr or DCS100 Super Chief command station. DT400 can only access F0-F8 when used with a DB150 Super Empire Builder command station.To enter Fn (function) mode:1. Determine which throttle you want to control functions on and make it the active throttle by single clicking the throttle knob or by turning the throttle knob a couple of clicks.2. DT400’s numeric keypad is always active in function mode during normal loco operations. When the mode indicator on your DT400 shows Fn, simply press any number ...

I'm looking to wire Tortoise switch machines on a DS64. When the track switch is thrown I want to power 1 color light (non-LED). When the track switch is closed, power a different colored light. Is this possible using the DS64 inputs or the Tortoise connections? The DS64 does not have separate connections for indicator lights for trackside or for a control panel. However, indicator lights can still wired to work with the DS64. Tortoise or other slow motion swith machines can be wired in two different ways. If using LEDs, a two leg, bipolar LED can be connected in ...

The DT402 Throttle will control up to 29 functions in walkaround and radio modes. When operating in IR Mode the DT402 series throttles will control up to 9 functions (F0-F8). The numeric keypad is always active in the normal Fn operation mode. The functions that are currently on for the active loco will be displayed on the top line of the DT402 display. The following figure shows an example of how the display looks when functions 0 and 1 are turned on for loco 1652 on the R Throttle. Controlling Functions F0-F12 1. Determine which throttle you want to control ...

The Kelana Jaya Rail Line model layout uses WinLok 2.1 running on a PC under Windows 98 to operate the trains, turnouts, signals and to use the feedback from the block detectors for train control. This equipment was configured and programmed to PUTRA's specifications by Dr. Hans R. Tanner of DigiToys Systems. PUTRA specified the following capabilities for the control system used for the simulation: 1. Run eight trains at once in any combination of automated or manual control. 2. Define specific routings and be able to assign automatically or manually any route to any train at the time the ...

Power Management is a concern on every layout.  With Digital Command Control, the main concern is that enough power is supplied to evey track section on the layout so that the digital signal is transmitted to the decoders in the locomotives and turnouts.Each locomotive uses power from the track, some for the motor, some for headlights and other functions and some for the command control electronics in each locomotive.  More electrical power is necessary to run more locomotives on the layout.  Digitrax boosters provide between 2.5 amps & 8.0 amps.  A small N Scale or HO Scale layout with two to ...

SE8C - Semaphore and Broadcast Control Switch Address Ranges Semaphore Control Switch AddressRange 16 Per SE8C Broadcast Control Switch Address Range 2 Per SE8C SW01-Sw16 Sw01-Sw02 Sw17-Sw32 Sw09-Sw10 Sw33-Sw48 Sw17-Sw18 Sw49-Sw64 Sw25-Sw26 Sw65-Sw80 Sw33-Sw34 Sw81-Sw96 Sw41-Sw42 Sw97-Sw112 Sw49-Sw50 Sw113-Sw128 Sw57-Sw58 Sw129-Sw144 Sw65-Sw66 Sw145-Sw160 Sw73-Sw74 Sw161-Sw176 Sw81-Sw82 Sw177-Sw192 Sw89-Sw90 Sw193-Sw208 Sw97-Sw98 Sw209-Sw224 Sw105-Sw106 Sw225-Sw240 Sw113-Sw114 Sw241-Sw256 Sw121-Sw122 Sw257-Sw272 Sw129-Sw130 Sw273-Sw288 Sw137-Sw138 Sw289-Sw304 Sw145-Sw146 Sw305-Sw320 Sw153-Sw154 Sw321-Sw336 Sw161-Sw162 Sw337-Sw352 Sw169-Sw170 Sw353-Sw368 Sw177-Sw178 Sw369-Sw384 Sw185-Sw186 Sw385-Sw400 Sw193-Sw194 Sw401-Sw416 Sw201-Sw202 Sw417-Sw432 Sw209-Sw210 Sw433-Sw448 Sw217-Sw218 Sw449-Sw464 Sw225-Sw226 Sw465-Sw480 Sw233-Sw234 Sw481-Sw496 Sw241-Sw242 Sw497-Sw512 Sw249-Sw250 Sw513-Sw528 Sw257-Sw258 Sw529-Sw544 Sw265-Sw266 Sw545-Sw560 Sw276-Sw274 Sw561-Sw576 Sw281-Sw282 *Addresses above 1000 require ...

Q: What's a "Bushby bit"? A: In your command station, OpSw27 can be toggled to disable normal switch commands, a.k.a. the "Bushby bit." This allows the layout operator to use an attached PC to handle switch control logic. Under normal conditions, advanced throttles can be used to operate turnouts which are controlled by LocoNet-connected stationary decoders. The factory default setting for OpSw27 is "t". Toggling OpSw27 to "c" takes this control away from the individual throttles and gives it to a controlling computer. Such an application would be a railroad with CTC control, where the train movements are directed by ...

The layout uses twenty-eight turnouts on the mainline and an additional eleven turnouts in the yard. Each turnout is powered by a Tortoise slow motion turnout motor. Each of the twenty-eight mainline turnouts has three dwarf signals associated with it. The aspects of the signals are shown below. The indications of the signals are: Green = Proceed Yellow = Proceed with caution Red = Stop Each signal has one head with two LEDs. There are also thirty-eight mainline block signals (red/green) that are controlled by heavy duty single pole double throw relays. This makes a total of 122 signals. Since ...

When the command station is sending commands to a loco address that is in-use on one of the DT300's throttles and that address is being changed by another throttle or computer, it will cause the DT300 to “click” every time it sees a remote throttle change its locomotive settings. If that locomotive is in the active throttle, its speed display will also show the changes. This is called slot following. This allows two DT throttles to run a single locomotive address with both throttles being able to send commands to the loco. Both throttles will show the current speed and direction of ...

DCS50 Zephyr can control Functions F0 - F8. Most DCC mobile decoders have function outputs that you can use to control lamps, LEDs, sound, smoke generators and other on/off devices installed in your locomotives. Most locomotives made today come with a head light and sometimes with a rear light, too. With DCC, these are controlled by the decoder’s function outputs. You can also install additional DCC controlled lighting such as cab lights, Mars lights, ditch lights, rotating beacons and others on your locos. The addition of these functions can add to the fun and realism of your locomotives.You must have ...

Under what conditions can the PR3 be used as a Stand Alone LocoNet Terminator? The PR3 is so designed so that it can be configured to act as a stand alone LocoNet controller in the event that a Digitrax command station is unavailable for the control of a series of LocoNet compatible devices. There are two major situations that would require the PR3 to act as a stand alone LocoNet controller. The first situation is where one of the many advanced features offered by the LocoNet and the various LocoNet compatible devices is desired to be used on a layout ...

  MU (Multiple Unit) OperationsIt is not uncommon to see two, three or even four diesel locos pulling in consist at the front of a train. Sometimes, there is a locomotive added in the middle of the train or at the end of the train to give “helper service” to the head end locomotives. This is called Multiple Unit Operation or MU operation. With DCC, each locomotive is separately controlled. But in the case of MU'ing we would like to have more than one locomotive address controlled by a single throttle to simplify MU operation.Your DCS50 uses universal consisting to ...

DCS50 Zephyr can control Functions F0 - F8. Most DCC mobile decoders have function outputs that you can use to control lamps, LEDs, sound, smoke generators and other on/off devices installed in your locomotives. Most locomotives made today come with a head light and sometimes with a rear light, too. With DCC, these are controlled by the decoder’s function outputs. You can also install additional DCC controlled lighting such as cab lights, Mars lights, ditch lights, rotating beacons and others on your locos. The addition of these functions can add to the fun and realism of your locomotives.You must have ...

Adding duplex radio, infrared or simplex radio to your existing Digitrax system is simple because of LocoNet.InfraRedYou probably already own a DT300, DT400, UT4 or DT402 series throttle. All of these are "InfraReady." These all come with two IR emitters pre-installed. All you have to add for IR operation is one or more UR90 Infrared Receivers to your layout. Most layouts require multiple UR90s because the infrared signal is line of sight. This means that your receiver will need a sight path to the throttles.Simplex RadioDigitrax throttles with an "R" at the end of the part number are simplex radio ...

  How to Configure the DS54 for one-button turnout controlThe local buttons, throttle, or any other turnout control device connected to the LocoNet can control the DS54 output when the DS54 is connected to the rails. The following drawings indicate the general wiring schematic for a one-button control of a turnout using either a Dual Coil (upper) or slow motion (lower) switch machine. The following two charts indicate operating criteria and CV settings for one-button turnout control. 

To run two or more locomotives together as a multiple unit lash up or consist controlled by a single locomotive address: Place the two or more units you wish to MU on the track. 1. Select the TOP loco (the one that will control the consist) on the right hand throttle knob. 2. Select the loco to be added to the MU on the left hand throttle knob. 3. Make sure all the locos in the consist are traveling in the same physical direction on the track (both going to the left or to the right) 4. Press the "MU" key 5. Press the "+" key 6. ...

Most customers that use Digitrax command stations use Universal Consisting instead of Advanced Consisting as described here.  With Universal consisting, the consist information is handled by the command station instead of by the decoder.CV19 is the advanced consist address. CV19 also contains data for the direction in which the consist will operate. See the table below to determine what value to program into CV19 CV19 Value Effect on Adv Consist Address Normal Direction of Travel of Advanced Consist 000 Advanced Consist Addressing Disabled N/A 001 - 127 Advanced Consist Addressing Enabled Forward 129 - 255 Advanced Consist Addressing Enabled Reverse When ...

After considering the various alternatives available at the time, the NMRA's DCC Working Group found that the signaling techniques used by the Lenz System had what they were looking for and used a communications protocol that offered the greatest future growth potential. While the signaling techniques were based on the Lenz design, numerous improvements were made and a packet format that is much richer in features was ultimately adopted. While the Standard has its roots in the Lenz system, it is not based on any proprietary equipment or information.If you look at the early NMRA DCC working group FAQ's it ...

Stealing is  also known as Forcing An Address Selection or SharingIf you try to select a loco address that is already selected on another throttle the DT400 will display “Steal?=Y” in the text area. This is a safety interlock to prevent operators from taking control of locos that are already selected on other throttles. Occasionally it is necessary to override this interlock to gain control of a loco that is “lost” for whatever reason. This override is called stealing & can result in having a single loco address selected on two different throttles at the same time.To steal an address ...

Q:  What is the preferred way of protecting a reverse loop with circuit breaker management and still having automatic reversing? A:  There are two ways of protecting a reversing section with a circuit breaker and reversing section controller. 1.  Use one PM42 (circuit breaker manager) and one AR1 (automatic reversing section controller). 2.  Use two PM42s (one as a circuit breaker manager and one as a reverse section control). The following diagram displays both methods: a) The first method (left), is where one section of a PM42 configured for circuit breaker operation feeds one or more AR1s (automatic reversing section controller), or b) The second method ...

Digitrax uses CV33-CV46 to handle remapping according to published standards.The CV values that are permitted for function remapping are limited to 8 bits, a maximum value of 255. Therefore only 8 functions can be mapped to each function key.Function remapping is easy! Just follow these simple steps:1. Locate the row for the Throttle Function Key [chart below] that you want to use.2. Locate the column of the Function Lead Color (number) you want to control.3. Note the value at the intersection of the row and column.4. Program that value into the the CV listed next to the Throttle Function Key. ...

Configurable strobes are controlled with CV49 & CV50. CV49 controls the White Lead   CV50 controls the Yellow Lead The value programmed for each CV consists of 2 digits, the first digit controls the conditions under which the light will be active.1x=Reverse, if 1 is the first digit then the light will be on when the locomotive is in reverse2x=F0 Qualified, if 2 is the first digit then the function will be active when F0 is on and off when F0 is off4x=Direction insensitive, if 4 is the first digit then the function will be On in either directionThe second ...

At first glance, the typical switching railroad would not seem to be a good candidate for DCC operations. Yes, there may be only one locomotive on many of these railroads, but that locomotive can still benefit from DCC. By adjusting the starting, mid-range and maximum speed values of this locomotive, you get very good slow speed control, perfect for the switching railroad. And, of course, if you add a second locomotive, then DCC becomes the clear choice because you are not longer having to throw toggle switches just to move around the yard. The DCC environment also gives you turnout ...

The prototype operation that gains the most from DCC is one of those least frequently modeled today: Rapid transit. Rapid transit consists of streetcars, interurban, subway, elevated or commuter rail track and equipment. The trains are usually very short and intervals between trains are relatively brief. Lots of trains run each hour and many trains are running at the same time. All of this operation is very much like a typical model railroad. Any photograph of a major downtown in the streetcar era will have from two to ten streetcars visible with some only feet apart. Simulating this type of ...

To select and run a DCC equipped locomotive with a known address follow these steps:1. Set the DCS50's Throttle Knob [1] to STOP. 2. Place a DCC equipped locomotive (one with a decoder installed) on your digital layout that is controlled by your DCS50. In this example we assume that you have a new Digitrax decoder that is factory programmed to address 03. If your decoder is using a different address, simply use that address as you follow these instructions.3. Check the DCS50's Track Status Indicator Dot [4] to be sure that track power is turned on. Press the POWER ...

Another way to describe "stealing" is "sharing"; it is a process where one operator can mutually control a mobile decoder with another operator.This feature can be useful for training new operators or supervising engineers who insist on breaking the speed limit. The supervisor can "steal" a locomotive that is selected on a trainee's throttle and be able to closely supervise that locomotive's control, taking over when necessary. The supervisor can gain instant override control without having to physically "grab" the trainee's throttle. This lets you have unskilled visitors participating and enjoying operations without too much anxiety for either party.If you ...

Speed stabilization is a feature that causes the decoder to run the locomotive at a somewhat constant speed according to the throttle setting. This means that if you set your throttle to 21% of total speed, the decoder will force the motor in the locomotive to maintain a constant speed at that level no matter what the track gradient or the load on the locomotive. The SD9 is an example of a US prototype that employed a load compensating type of control technology. Many modern European locomotive prototypes use some form of load compensation of the prime-mover in response to speed ...

Direct Home Wiring: A wiring system where the DCC booster powers each rail via an individual wire.  Each booster is wired to it's own track power section and there is no electrical connection between boosters. This means that each power district is double gapped and is connected to it's own booster.  The boosters are in turn connected via LocoNet to the command station providing one source of commands for the entire layout.Digitrax recommends using only Direct Home Wiring for all Digitrax layouts. Non command control layouts typically use common rail wiring as part of their control method. This means that one rail ...

The DCS50’s LED Display is made up of 4 digits/letters on the main part of the screen and 4 Indicator Dots across the top of the screen.  When you are running a locomotive, you will see the address of that locomotive in the display and the Function Indicator Dot will be lit. This means that the throttle knob will control speed, the direction lever will control direction and braking and the number keys will control the functions on the locomotive. You will see the following display if you are running loco address 1873 on your local throttle.The LCD has three ...

What are the different operational modes available in the PR3? The PR3 is the combination of two previous Digitrax devices: the PR2 decoder programmer and the MS100 LocoNet to computer interface. The PR3 can be configured through manual (control panel buttons) or automatically (software) means to perform any one of the following three operations: a) The PR3 can be configured to function as a stand alone decoder programmer. In this mode the PR3 can program the configuration variables of most DCC decoders and the sound effects of the Digitrax Sound FX sound decoders. b) The PR3 can be configured to ...

I have a medium/large sized layout with a reversing district. I want to operate 6-10 trains with several operators. I am interested in turnout control, prototypical consist operations and signaling to be added later. I might want a computer added later, too. Which components do I need?You will need a Super Empire Builder Xtra or Super Chief Xtra with additional throttles for the operators and an additional DB150 booster or PM42 for the reversing district. You will also need at least one additional DB150 to provide enough power to run 6-10 trains in N or HO. You can choose and Digitrax ...

Stealing A Locomotive AddressDigitrax systems do not allow more than one user to select and run the same locomotive address unless the loco is “stolen” (or shared) by the new user. When an address is receiving commands from more than one throttle, it may seem to be out of control.Stealing is a safety interlock that prevents operators from automatically taking control of locos that are already selected and being run on another throttle. Occasionally you may need to override this interlock to gain control of a loco. This override is called stealing and will result in having a single loco ...

Consisting is the action of linking more than one locomotive or power unit together to be controlled by a single locomotive address.  The UT4 is not capable of building or breaking up a consist.  This is handled by a throttle or computer program that is able to build and break up consists and then hand the consist off to the utility throttle operator.  Utility throttles are designed to be simple to use for operators on the railroad.  The UT4 CAN control a consist by selecting the address of the TOP loco in the consist.  It can also control the functions of locomotives within a consist.If ...

How do I set up the SE8C to control semaphores? Installing Semaphore Type Signals with SE8CThe SE8C can be set up to use its 8 turnout motor drive outputs to run 8 three-position semaphore (arm type) signals using slow motion turnout control machines (such as the TortoiseTM machines) as actuators. These 8 semaphore signals are available in addition to the standard 32 LED signal heads on the 8 signal control cables and occupy a separate semaphore address control range.The SE8C automatically sequences the three possible mechanical arm positions to match 3 aspects of red, green and yellow using a position ...

I have a Athearn HO Scale MP15 Soo Line and have installed a DH166 decoder. How do I get the rotary beacon to flash? Function Outputs on the DH166 The DH166 is set up at the factory to control six function outputs. The DH163AT is configured to control the forward and reverse lights on the locomotive through the yellow lead and white lead using Function 0 (F0F-forward yellow and F0R-reverse white) for directional lighting. Functions F1(green) and F2 (violet) are part of the harness for easy hookup. F3 and F4 are also available on the decoder board. These can be ...

The DH163 series decoders are set up at the factory to control six function outputs. The DH163 is configured to control the forward and reverse lights on the locomotive through the white lead and yellow lead using Function 0 (F0F-forward and F0R-reverse) for directional lighting. Functions F1(Green) and F2 (Violet) are part of the harness for easy hookup. F3 and F4 are also available on the decoder board. These can be accessed by snipping the shrink wrap and peeling it back to expose the solder pads that control these functions: To use these functions, solder a wire from the pad ...

You can easily control sound units like the Keller SU1990 by using the function leads on Digitrax Decoders and DCC command station that can control decoder functions. These instructions for connecting a Keller Engineering Diesel Sound unit to Digitrax DH83FX & DH140 series decoders was writtne many years ago.  Any modern Digitrax decoder with 4 function leads can be used. Equipment Needed:1) A Digitrax Throttle, Booster/Command Station or other DCC command station capable of controlling decoder function outputs.2) Any Digitrax decoder with at least 4 function leads will work here.3) The locomotive you wish to convert, be sure to check the ...

Here are some terms that you might find useful as you work with the BDL168. Direct home wiring is a layout wiring method where each power district and its booster is electrically isolated. The track within each power district uses a "common return" wiring method for occupancy detection and/or power management. Direct home wiring is the wiring method recommended by Digitrax for safety reasons & also because it makes detection work more prototypically. Power district is the power wiring, track, components and equipment attached to that wiring, driven by a single properly isolated booster. The track for a power district ...

DT400 is designed to maintain a close similarity in function & feel with Digitrax DT300, DT200, & DT100 series throttles. This family resemblance makes it easy to add new throttles to your Digitrax Command Control System and be able to use them in ways similar to the existing throttles that you are already used to. DT400 can be used with any Digitrax LocoNet System or other LocoNet compatible DCC system.   User friendly Multi-line Backlit LCD with easy to read icons and messages.   Prompts in the display guide you every step of the way. To make operation easy and ...

1. The DT402 handheld has two knobs called the L Throttle (Left) and the R Throttle (Right). The throttles are used for speed control, direction changes, and input of information for operation of your railroad. 2. The row of numbers (0-9) across the top of the display are the functions being used by the active locomotive throttle. 3. The larger numbers in the middle of the screen indicate the speed of the locomotives being controlled by the throttles. 4. The numbers at the bottom of the display are the locomotive addresses, and correspond to the digital decoder that is in ...

Q: I am setting up a yard control panel with a CML Electronics DTM30. For the DTM30 to know what state a turnout is in, it can issue an interrogate command but my DS54's do not seem to respond with this information. Is there a trick to this? A:  According to CML: The DTM30 makes use of the “Interrogate” feature that all modern Digitrax systems use. After power up, the Command station normally sends out 8 switch commands. All accessory devices respond to these, and send LocoNet messages back reporting sensor states and point states. The DTM30 can also send ...

Q:  I just purchased a used Digitrax set consisting of a DB150, UT2 and a PS515 for a very low price. What do I need to add to bring this up to current standards? A:  Because of Digitrax LocoNet, it is easy to add the latest components to upgrade on older starter set.  What you purchased was originally called a Genesis Starter Set.  The PS515 did not come with it but it is the perfect power supply for the DB150.   Your next step depends on what you want to do with your railroad.  In this case, the components you have will be ...

What's the best method to handle structure and street lighting with a DCC layout? If I put in bus wiring for my lighting can it interfere with the DCC signal? Unless you have stationary decoders that control the structure and street lights, there is no need for connecting these lights to your DCC wiring. In fact, doing so will add additional power consumption without any of the advantages of command control. These additional power consumers take away available power for your locomotives, controlled cars and stationary decoders. Should I use a completely different power source like an old power pack? ...

ENGINE SELECTIONPlace locomotive on the tracks controlled by the command station.1. Turn the throttle knob you want to run a loco on about a quarter turn (this lets the controller know you want to address that side.)2. Push the "Sel" Button3. Turn the throttle knob you have selected until the left numbers of the display match the locomotive number you wish to run. (No decoder = 00)4. Push "Sel" again.5. Repeat for the other throttle.If the number "33" appears it means that locomotive is unavailable (usually under the control of another throttle)These simplified DT100 operating instructions courtesy of Alan Mitchell

Q:  Can I set up the DS54 for two-button operation turnout control? A:  Two-button control (one button for setting the points to the main route and the other button for setting the points to the diverging route) is a standard configuration for the control of any turnout.  The following charts indicate operating criteria and CV settings. 

The FUNC Key is used to enter function control mode. Function control mode is the default mode for normal locomotive operation with the DT402/DT400 Series Throttles. Press this key during any throttle task to return to normal loco operation mode with function controls active on the numeric keypad.

I want to sit back & watch my railroad run. Can you do that with Digitrax?The Digitrax Command Control System is designed for prototypical operation. The objective is to provide realistic operation so that the models run like the real thing. To do this you need an engineer in control of each locomotive. The starter sets are not designed for automated train control when used by themselves. To set up automated operation, you can set up the layout with detection and or transponding and use a computer to handle the automated operations.

  CV29 is assigned a single value which chooses a combination of specific effects: 1. Speed step control. 2. Speed table On or Off. 3. Analog mode conversion On or Off. 4. Normal Direction of Travel (NDOT). 5. 2 digit addressing or 4 digit addressing. Speed Step Control. There are two modes for speed step control: Standard (14 speed step mode) and Advanced (28/128 speed step control). Because of differences in the capabilities of DCC compatible command stations and decoders, you may have to set CV29 in your decoders to different values to match the mode of the command station ...

CV29 is also called the Configuration Register.  It is a special CV that handles several different aspects of locomotive behavior.Characteristics Controlled by CV29:1.     Speed Step Control:  Advanced Mode (28/128 speed steps) or Standard Mode (14 speed steps).2.     Speed Tables: On or Off3.     Analog mode conversion: On or Off4.     Normal Direction of Travel (NDOT)5.     2 or 4 Digit Address selectionDetermining CV Value To Program Into CV29The numerical value value you will program into CV29 will affect many important decoder characteristics.  Each of these characteristics is controlled by a "software switch." This switch is either on or off depending on the CV ...

The UT4 series, UT4, UT4D & UT4R are "traditional" style throttles.  The UT4s were developed from a specification submitted by Digitras users through the Digitrax Yahoo group. These throttles were designed by operators for operators.  They are also great for beginners because of their intuitive controls and reduced feature set. By not offering all the bells and whistles, beginners can run your railroad without accidentally changing settings that might cause problems.   Works with any LocoNet compatible system   4-Digit addressing   Functions F0 - F12 for lighting and sound decoder operation   Direction switch with center brake position   ...

Q:  I am the only operator. There will be no others. I wish to use block detection for signaling. However, I find that I cannot use the BD4s in the way I thought they could be used. My question, must I divide my simple layout into blocks (which DCC says you don't really need) in order to use the BD4's and SE8C together? A small basic layout can be operated in the DCC environment without dividing the railroad up into power districts.  In this scenario, you will use one command station/booster to power the entire layout. As your power consumption ...

The DT300 Throttle has two throttle knobs, allowing you to select and control two locomotives.  We refer to the throttle knob on the left side as the L THROTTLE and the throttle knob on the right side as the R THROTTLE. This corresponds to the L and R labels that appear on the DT300 near the throttle knobs.The throttle knobs on the DT300 use “encoders” to control speed and direction of the locomotive. The encoder can be pressed or rotated to “activate” the throttle. Pressing the throttle knob once activates that encoder. Pressing the knob twice will change the direction ...

Most modern command stations and decoders are set up to run 28/128 speed steps.  If you are using older command stations or decoders you may need to adjust one or the other to get the trains to run.Why are more speed steps better?The reason you want to use a command station and decoders with 128 speed steps is for smoother speed control of your locomotives.   Digital command control signals are just that, digital.  When you send speed commands with your throttle, you are sending digital instructions telling the decoder to change from the current speed to a different speed.  When ...

It is important to realize that the standard only covers the communication protocol on the track.  As long as it is not extended further than the basic track level communications for train control, creativity will be encouraged rather than stifled. This protocol is very basic and does not require any particular hardware. The Digitrax Complete Train Control System incorporates the DCC protocols for interoperability reasons but has not been held back by them.  Digitrax has developed and marketed automatic reversing boosters, decoders with 128 speed steps and user customizable speed tables, mobile decoders with onboard functions and lighting effects, stationary decoders with sophisticated ...

The DT402 & DT402's screens are an LCD (Liquid Crystal Display) that is designed to show you what you are controlling with the throttle.  It also facilitates programming and other features of the LocoNet system. 1. The handheld has two throttles called the left throttle (L) and the right throttle (R).2. There are two direction indicators. One for the L throttle and one for the R Throttle. If the direction indicator is lit, and there is smoke over the loco icon there is an address selected on that throttle.3. The direction indicator with blinking smoke indicates which throttle is currently active. The ...

SW01 to SW08 are inputs that allow a local switch mounted on the layout to operate the slow motion turnout machine. For example, SW01 when connected to the +VE sensor common (Pin 2 in figure) will reverse the voltages on SMTM1A and SMTM1B to change the position of turnout 1. SW02 controls local turnout 2 , etc. For each connection to +VE sensor common the slow motion turnout machine swaps direction and a Switch message is sent to LocoNet to report the new position of the turnout. This local control can be disconnected by setting OpSw 15 to closed, in ...

The Nemo Junction module has a total of seven color light signals that regulate the flow of train traffic through this interlocking plant. Controlling the Signals with SE8C The SE8C is the signal driver, sending current to the various LED's of the color light signals. Each signal is operated via switch commands from the Zephyr. The SE8C has eight Driver Sockets, identified as DRV1 - DRV8. : A Signal Driver Cable (a 10-conductor ribbon cable) is plugged into a SE8C Driver Socket to control as many as four signal heads per Driver Socket. Each signal head can display 4 lighting ...

What is an LnWi? The Digitrax LnWi module is a 2.4GHz IEEE 802.11 b/g/n (Wifi) Wireless Access Point type of device that logically bridges access from compatible external throttle APP(s) running on mobile tablet or smart phones onto a Digitrax LocoNet. The LnWi is an independent method for Digitrax users to control locomotives, and can be used at the same time as e.g. Digitrax Duplex or Simplex Wireless, and IR/wired throttles and other Wifi LocoNet access devices on the same system it is wired to. The design goal for the LnWi was to make it very easy for a Digitrax user ...

Some Digitrax decoders offer scalable speed stabilization (also called back EMF) control to help smooth out operation in the low end of the speed range.  This feature can be beneficial especially in N scale switching situations especially when the decoder can select how much of this effect to implement (scalable speed stabilization).  Speed stabilization is a decoder feature that can be used with any DCC system.  Most Digitrax decoders that support this feature are shipped with scalable speed stabilization turned off so, to use it you will need to set program them to use this feature.  Other Digitrax decoders are ...

The DH165Q1 is set up at the factory to control six function outputs. The DH165Q1 is configured to control the forward-headlight F0F/white lead and reverse-headlight F0R/yellow lead for directional lighting. These two headlight function leads are current regulated for LEDs or lamps, with factory setting of approx 15mA, with no resistors required. Cut the ADJ link to increase headlight current to approx 30mA- see fig 5. Functions F1 (Green), F2 (Violet), F3 (Brown) and F4 (White/Yellow) are full track voltage and can be used by soldering a wire from the pad for the function you wish to use to the ...

I am putting the finishing touches on my 10 x 20 foot H0 railroad. It is a copy of the Cajon Pass, Salt Lake & Santa Fe RR by John Armstrong (#86 in the 101 Track Plans by Linn Westcott) [Kalmbach Publishing, ISBN 0-89024-512-6; still in print]. I have decided to go with DCC and my local hobby store recommended Digitrax. The layout is in my basement, I will be the only operator, the plan has 54 track switches (34 NJ International twin coils and 20 Tortoise turnout motors). Can you give me an idea as to what equipment I ...

The DH165K0 is set up at the factory to control six function outputs. The DH165K0 is configured to control the forward-headlight F0F/white lead and reverse-headlight F0R/yellow lead for directional lighting. These two headlight function leads are current regulated for LEDs or lamps, with factory setting of approx 15mA, with no resistors required. Cut the ADJ link to increase headlight current to approx 30mA- see fig 5. Functions F1 (Green), F2 (Violet), F3 (Brown) and F4 (White/Yellow) are full track voltage and can be used by soldering a wire from the pad for the function you wish to use to the ...

The DH165A0 is set up at the factory to control six function outputs. The DH165A0 is configured to control the forward-headlight F0F/white lead and reverse-headlight F0R/yellow lead for directional lighting. These two headlight function leads are current regulated for LEDs or lamps, with factory setting of approx 15mA, with no resistors required. Cut the ADJ link to increase headlight current to approx 30mA (see figure below). Functions F1 (Green), F2 (Violet), F3 (Brown) and F4 (White/Yellow) are full track voltage and can be used by soldering a wire from the pad for the function you wish to use to the ...

Q:  How can the DS54 be configured to control a Flashing Crossing Signal? A:  The elements necessary to create a simple function flashing/blinking crossing signal are: a block occupancy detection (trigger) device, an electronic flashing/blinking circuit (DS54) and a crossing signal. The DS54 can accommodate two different types of triggering devices: Digitrax block occupancy devices (BD1 and BD4) and third party block occupancy devices (such as magnets and reed contacts). The following drawings indicate how to connect the two different types of triggering devices, along with the crossing signal, to the DS54. The upper drawing is for the BD1 or ...

When using more than one DS64 in a DCC environment, you must assign a Board ID to each additional DS64 so that each one has a unique Board ID.You will need to set the DS64's board ID if you are planning to use the DS64's 8 inputs with a computer, system throttle, or other smart device on your layout that needs to know when a turnout has been manually thrown or closed via a particular DS64.You can use the 8 inputs on the DS64 to control the operation of the 4 outputs that control your turnouts.  For example, you can ...

These are the basic DT400 and DT402 series throttle operating instructions designed to get you “up and running” quickly and to minimize your “frustration level” as you learn to use the throttle.   Turning Track Status On and Off To run your layout you must be sure track power and track status are both ON.  Follow these steps with your DT400 or DT402 series throttle to do this. Press the "PWR" key on the bottom left side of the throttle. The words “+ON  -OFF” will come on in the display. Press the “Y +” key quickly and you should see the ...

Stealing an Address that is in use by another throttle If you try to select a loco address that is already selected on another throttle the DT300 will display “Steal?=Y” in the text area. This is a safety interlock to prevent operators from taking control of locos that are already selected on other throttles. Occasionally it is necessary to override this interlock to gain control of a loco that is “lost” for whatever reason. This override is called stealing and can result in having a single loco address selected on two different throttles at the same time.To Steal An Address With ...

How to Select and Run a DCC Locomotive Using a DT402 or DT400 Series Throttle 1. Activate the throttle's left throttle knob “L” by turning it a 1/4 turn in either direction or by clicking the throttle knob once. The left side address will begin flashing. If nothing is selected on this throttle it will flash “SEL”.2. Press the LOCO Key. The left side of the display will begin flashing. The illustration above shows the LCD display just after you press the LOCO Key to select an address on the L Throttle when nothing has been selected on that throttle before and ...

This crane is fully controllable by your Digitrax system. The crane itself turns 360 degrees, the boom raises and lowers, the hook raises and lowers. An electromagnet and searchlight are optional and can also be controlled from your throttle. Only one can be used at a time, but they both come in the same package.Here is a step by step guide to using it with your Digitrax system.The decoder has an address of '08' and is a 28 speed step decoder - selecting the crane requires doing what is known as a "status edit". Hit SEL, turn a knob to ...

Although this is a simple railroad, it will have some advanced features. When the railroad's sectional modules are first assembled, the electrical connections are simple. The railroad will be controlled with a DCS50 Zephyr, using a PM42 Power Manager for short circuit protection. One section of the PM42 will control the inner oval of track, a second section of the PM42 will control the outer segment. This is done so that if a train derails on one loop, the train operation on the other loop will not be affected. Because the DCS50 is rated at 2.5 amps, the PM42 must ...

Is it possible for the same locomotive to be part of more than one consist? In the strictest sense, no. Nor would it be a good idea to do so since you could never be sure who is controlling a particular locomotive. It is possible to join one consist to another in what is called nested consisting. Suppose I want to use a locomotive as a helper to get trains up a steep grade. I would need to form it into a consist with several different main line locos. Is it possible to set up several consists (each made up ...

Digitrax SoundFX lets you make your locos sound like the real thing!Remember, your Digitrax SoundFX decoder is ready to run and will operate and generate sound using address 03 with no additional programming.On your Digitrax system, simply select the locomotive's address and the sound will start. On some DCC systems, it is necessary to select the locomotive address AND send a command to start the sounds. When used in conjunction with a separate DCC motor decoder in a single locomotive it is most practical to program both decoders to the same address and operating modes.For a more prototypical railroading experience, ...

As has been noted in other articles, most model railroads require a power bus which uses 10 - 12 gauge solid copper wire.  This power bus is routed around underneath the layout, providing an efficient path for the layout's power needs.The command station/booster is connected to the two wires of this bus; one wire uses black color insulation and the other uses red color insulation.  The rails of the layout are then connected to this power bus at six foot intervals, at minimum; denser track areas require more such feeders.  For an individual command station/booster or for a booster by ...

Q:  Using Digitrax systems to program an MRC AD310 decoder is especially confusing because the MRC Command 2000 uses several "switches" and "levers" rather than standard CV numbers. A conversion chart for the 10 possible MRC engine addresses would be a wonderful help to us old-timers. A:  The documentation available from the manufacturer of this decoder is incomplete. Many older decoders such as this one are not able to recognize all the digital packets in use by more modern DCC Systems. What we have learned is the MRC AD310 is: Programmable up to 127 (1~127) locomotive addresses Programmable for either 28 or ...

Here at the Tech Support Depot, it has been our goal to improve operators' understanding of the Digitrax system of model railroad command control. We often see thoughtful words from others who are not employed by Digitrax that still have an in-depth understanding of the product line. Here, Doug Stuard talks about the UR91; these words originally appeared on the Yahoo Groups Digitrax discussion list, and are used here with his kind permission. UR91 and Throttle Antenna The UR91 antenna is the pair of 3" wires that sprout from the PC board that are arranged in a "V" similar to ...

To use the pre-set braking rate to stop and start a locomotive: Move the Direction Control Lever [ 2 ] to the BRAKE position, the Brake Indicator Dot will begin blinking and the loco will slow down to a stop at the brake rate you have set up in the Zephyr DCS50. As the loco slows to a stop, the Brake Indicator Dot will change from blinking to steady on to let you know that the brake is on.Move the Direction Control Lever to the FORWARD or REVERSE position and the loco will accelerate at the programmed brake rate to ...

How to add DCC to the new run of Bachmann DCC ready Dash 8-40CW? The current recommendation is for direct soldering, using either DZ125, which controls headlights only or DZ143, which controls headlight and two additional functions. With earlier units, either milling of the frame or a replacement frame was necessary, but the new units have a "DCC ready frame"; the source of this information also points out that Bachmann is using the same model number for both the older version and the newer version, so you should make certain that you have the recent version.

The DZ125IN is set up at the factory to control two function outputs. The DZ125IN is configured to control the forward and reverse lights on the locomotive through the white lead and yellow lead using Function 0 (F0F-forward and F0R-reverse) for directional lighting. Both function outputs can be easily set up with Digitrax FX3 lighting effects or as standard on/off functions with the following operational qualifiers: 1. Forward or Reverse direction of travel, or 2. Whether F0 is on or off, or 3. Both direction of travel and whether F0 is on or off, or 4. Whether the locomotive is ...

Just wondering if i can get clarification regarding using the PR3 as a standalone Loconet Terminator. The "LocoNet termination" mode of the PR3 allows the unit to connect to other modules without needing a command station, when there is no requirement for DCC track packets. In this mode you can interface to a PC and add units like DS64's with control of turnouts and detection (BDL168) and signals (SE8) without needing to run DCC track control or decoders. Running off e.g. JMRI or RR+Co is a good and intended usage.

Does the DS64 send commands over the track bus for all turnout addresses in one of its routes? Specifically, can DS64 defined routes include turnout addresses controlled by other stationary decoders connected to the track bus but not connected via LocoNet? LocoNet is the conduit for information outside of a specific DS64, including external devices controlled by a particular DS64. In some cases, the track bus may also be used but LocoNet is a more reliable path.

I have a DCS100. I do not understand why my DT400's speed increases (all the way up to 99) sometimes when I plug it in. Also, sometimes the Loco number (when selected when this is taking place) will increase too. There is no control enabled when this is taking place. If I plug in a DT100 it operates normally. One of the buttons on the DT400 may be stuck, leading to this behavior. Take a look at the control panel of the DT400 and you will probably see this stuck button since it will not be in a fully returned ...

Dispatching is the process of releasing a loco so that another user can take control of it. To release, or dispatch, a loco under current UT4 control:1. Unplug the UT4 from the LocoNet port.2. Press and hold the DISP (Dispatch) key.3. Plug the throttle back into a LocoNet port.

The SWCH Key is used for entering switch control mode. Once this key is pressed, you will be prompted to select a switch address and issue a thrown or closed command. Switch control mode is used in normal operation for operating turnout machines and in set up mode for setting up option switches in the throttle and command station.

Companies that sell interoperable equipment compatible with the NMRA's DCC "Standard" often use the DCC logo to let customers know that they support basic DCC standardization by producing DCC compatible equipment.This symbol is seen on many DCC compatible products because the NMRA DCC "Standards and RP's" do not cover all DCC compatible equipment and therefore not all DCC compatible equipment is eligible for a conformance seal. Basically, command stations and decoders are covered by the "Standards and RP's". Throttles (or cabs), computer interfaces, boosters (or power stations), computer based programmers, cab buses, control buses, control networks, radio and infrared interfaces, ...

Digitrax transponding works with Digitrax signaling system products. Transponding is not required to operate signaling systems however, the provision of transponding allows the possibility of the signaling system being able to automatically take control of trains that violate a signal aspect. Transponding can also be used to eliminate the "pushy pusher" problem that is characteristic of hardware implemented signal influenced speed control schemes.

  The Smoke Icon is located just above each Loco Icon and appears with the Loco Icon when an address has been selected on the throttle. When a loco is selected on a throttle, the Loco with Smoke icon will appear below the THROTTLE KNOB and beside the address of that loco. If no address is selected, there will be no Loco icon and the address area will show SEL. A Blinking Smoke icon indicates that the THROTTLE is currently active. Since both throttles must share the keypad, only one at a time can have access to the keypad and ...

In FX3 decoders, CV54 is used to control the decoder's torque compensation and switching speed features. CV53 is not used in FX3 decoders.Torque Compensation improves loco performance by internally adjusting for the loss of torque caused by SuperSonicTM operation.  This feature is turned on at the factory.Switching speed gives you fast access to lower speeds used in switching operations. This feature effectively reduces the throttle's target speed by about 50% and reduces the effects of acceleration (CV03) and deceleration (CV04) programmed into the decoder by 1/4 when the user activates this mode by turning on F6.FX3 CV54 Values For Controlling ...

The DZ125 is set up at the factory to control two function outputs. The DZ125 is configured to control the forward and reverse lights on the locomotive through the white lead and yellow lead using Function 0 (F0F-forward and F0R-reverse) for directional lighting. Both function outputs can be easily set up with Digitrax FX3 lighting effects or as standard on/off functions with the following operational qualifiers: 1. Forward or Reverse direction of travel, or 2. Whether F0 is on or off, or 3. Both direction of travel and whether F0 is on or off, or 4. Whether the locomotive is ...

CTX/CTY throttles allow you to have up to 4 separate throttles controlled by 4 different operators rather than 4 throttles controlled by one operator as in the CT4 that comes with your Challenger Set. Digitrax provides these instructions so that you can build your own throttles to your own specifications. You are free to choose any knobs, buttons & cases you like, the ones on the parts list below are just suggestions. These throttles give you the option of expanding your operations cost effectively. The CTX throttle controls speed & direction for one train in the operating group & can ...

MU OPERATION Place the two units you wish to MU on the tracks controlled by the command station 1. Select the lead locomotive on the right side throttle  2. Select the engine to be added on the left side throttle 3. Make sure all the locomotives in the consist are traveling in the same physical direction. The direction lights may or may not be the same (green or red) depending on the orientation of the locomotives in the consist (head to head or tail to tail). 4. Push "mode" Button 2 times 5. The display should now show both locomotive numbers. 6. ...

  CV29 is assigned a single value which chooses a combination of specific effects: 1. Speed step control. 2. Speed table On or Off. 3. Analog mode conversion On or Off. 4. Normal Direction of Travel (NDOT). 5. 2 digit addressing or 4 digit addressing. Speed Tables: Speed tables can be enabled or disabled with CV29. Speed tables are used to customize the throttle response curve of each decoder equipped locomotive. The speed table values can be stored in the decoder and then the table can be turned on or off with CV29. One example of such usage would be ...

Only the basic communications protocols are covered by the " Standard" in order to ensure interoperability and backward compatibility with existing systems. The "Standard" defines the signal sent over the rails, the tolerances allowed in its generation, the tolerances that must be accepted by the decoders and the basic communications protocol used to convey information to digital decoders. Recommended Practices cover things like the locomotive sockets and "advanced" decoder features. Manufacturers are free to design and implement DCC hardware and interfaces that make sense for their customers. Manufacturers are also free to define how the DCC packets are handled by their ...

The Smoke Icon is located just above the Loco Icon. Both the L & R Throttles have a smoke icon. If a loco is selected on either throttle, the Loco icon will appear beside the address of that loco. If nothing is selected, there will be no Loco icon and the address area will show SEL. The blinking smoke icon indicates which throttle is currently active (having its function states displayed in the top line of the LCD). Since both throttles must share the keypad, only one at a time can have access to the keypad and function controls. The ...

Differences in the DS74 from the DS64: Up to date and compact LocoNet design with customer IPL/firmware field update capability using DigiIPLII. All plug-in connections. Can support on expansion header up to 4 DSXCP1 fascia SW control panels with SW direction indicator LEDs. 8 internal LocoNet integrated System routes, that can be conveniently edited on a DT602 with latest IPL update. Configurable unit Base switch address when on layout. No need to remove from layout to service/configure. Automatic DS74 switch address overlap detection, and correction capability when editing with DT602. Indicates internal IPL Sub-version loaded to latest DigiIPLII rev 2.9 ...

This procedure is best done after installation of the decoder to the turnout.  The process is "blind", so it is easier to program this decoder after installation because you can then test the operation of the turnout with its new address.  The DS51K1 can be installed into the base of the turnout or attached to the bottom of the layout near the turnout.1. Turn off track power and temporarily connect the yellow programming wire from the DS51K1 to the same rail as the black wire.2. Turn on track power.3. Using your throttle, select the address you want to program into ...

The DN163M0 is set up at the factory to control six functions. The unit is prewired with one golden-white LED (shown in figure below) for the headlight and set up as Function 0 (F0F-forward). Function outputs F0F/Yellow, F1/Green, F2/Violet, F3/Brown and F4/White/Yellow are available on the decoder and can be used by soldering wires from the pads indicated to the lights (or other functions) you wish to control. CAUTION: When adding function wires, be very careful that the wires you add do not come into contact with any other pads or components on the board where they might create a ...

  Q:  Can I use a PM42 with a non-Digitrax DCC Command system? A:  The PM42 was specifically designed to work with Digitrax Direct Home wired layouts. Any system that is configured this way will probably work with the PM42 with no interoperability issues. Digitrax has no control over or knowledge of each specific non-Digitrax system and how it may interact with the PM42. The PM42 can be used as a stand-alone auto-reversing unit and short circuit manager with many third party DCC systems, but for systems without LocoNet capability a number of the networked management features will not be available. ...

It means just what it says. "This Product Conforms To All Applicable NMRA Standards." An NMRA Conformance Seal is NOT an endorsement by the NMRA. It is NOT a guarantee by the NMRA or by the manufacturer. It is merely a statement that a particular product conforms to a particular test set up and administered by NMRA volunteers to assess whether, in their opinion, the product conforms to a particular NMRA Standard. Interpretations of this statement vary widely depending on whom you ask for clarification.The Real Issue is InteroperabilityInteroperability means that you don’t have to worry about a single source ...

Function or “Fn” mode is the default mode for the DT402 & DT400 throttles because it is the mode that runs your trains.In Fn mode, the throttle knobs, reverse direction keys and Y+/N- keys are used to control locos.  The numeric keypad is used to access functions for the currently active loco address.  In Sw Mode, the keypad is used to operate track switches. This means that you can continue to control your trains while turning on and off functions and operating turnouts.If a throttle has a locomotive address selected, the associated loco icon and direction indicator will be lit. In ...

  I have an "M" shaped 250 square foot layout with 500 feet of track and twelve locomotives. What Digitrax equipment would I need? You don't say what scale this railroad will be modeled in, which is important since the locomotives in smaller scales draw less current than larger decoders. However, for purposes of estimation: Twelve Locomotives. Each locomotive is going to draw, at the very least, 5 MA for the decoder. If it has LED lights, then it will typically draw 15 MA more; conventional light bulbs will draw 50 MA. A typical H0 locomotive will draw 600 MA ...

This article was originally posted on this site in 2006, but the source material dates back much further than that, probably back to the early 1990's, when DCC was an emerging control system. The article discusses non-sound mobile decoder programming operations. Many of the issues discussed in this article are less relevant when using recently produced decoders, but this text still does cover some questions which may be raised when you are using mobile decoders which were manufactured by other companies. These decoders will operate in the Digitrax environment, but you may need to make some adjustments.The earliest Digitrax mobile ...

Q:  I am not sure where to begin. Dabbled in O & HO over the years and am now starting into S but have no knowledge in DCC. My layout is drawn, Dog Bone, with an over size of approx 20' by 11'. As of now there will be 8 turnouts and perhaps a turn table will be added or more turnouts. My intent is to run maybe 3 or 4 engines max. My only purchase so far is a Showcase Western Maryland, scale, which includes DCC with sound. My next comment is HELP! I do have a 2006 Summer ...

CV29 is called the configuration register. It controls the following decoder characteristics: 1.  Whether the decoder uses 14 speed steps, 28/128 speed steps or loadable speed tables.  This affects how smoothly the loco will move and how it responds to throttle controls.2.  Whether the decoder automatically converts to analog mode when no DCC signal is present.  This allows the decoder to operate on a DC layout even though it is DCC equipped.3.  Defines the normal direction of travel for the locomotive. Normal Direction of Travel or NDOT can be changed when the motor connections of decoder have not been connected so that the locomotive runs ...

We are a LARGE club layout. We have several reversing districts, 25 operators and run 30 trains at a time. We want computer control, turnout control, signaling. You name it, we've got it. What equipment do we need to run this layout?You probably need the Super Chief Xtra Set with additional throttles, boosters, mobile & stationary decoders & detectors.A typical HO layout of this size would need approximately 5 boosters & power supplies to provide enough power to run 30 engines. The DCS100 command station/booster will be one of these boosters so; you would need 4 additional DB150 series boosters. You will ...

DS64 Quad Stationary Decoder      The DS64 is a Stationary Decoder for use with 4 slow motion, solenoid, or bi-polar turnout machines Simple to hook up and configure   Controls 4 individual turnout machines: EITHER4 Slow motion turnout machines, such as TortoiseTM by Circuitron or SwitchmasterTMOR4 Solenoid-type turnout machines such as three wire (twin coil type) Peco or Atlas Snap Switches or two wire bi-polar type turnout machines such as Kato Unitrack, AristoCraft, or LGB turnouts with capacitive discharge capability  Support for up to 8 routes   Screw terminals make installation easy   Use with any LocoNet Compatible System   ...

Q:  Can two sections of a single PM42 be configured to perform both the task of a circuit breaker and also automatic reverse section control for a single reverse loop? The PM42 can be configured so that one section of the PM42 is used for circuit breaker operation, feeding into another section of the same PM42 which is configured for automatic reverse section control. In the field, this configuration has been found to be unreliable in some layout configurations.  If you are having problems getting this to work in your setting, we recommend using an AR1 to handle the automatic reversing secion.  The ...

Your DZ143ps decoder has been suggested for my Broadway Limited Blueline PRR J1a. I want to install a Seuthe smoke generator (#100 10-16v,120ma), which was recommended. I don't want to connect it directly to the track power because it will run all the time. Is there a way to connect it to DZ143PS so I can turn it on and off? Yes. The DZ143 series have a total of four function outputs, two are for the front and rear headlights and two are for additional functions. F1 controls the green wire output of the decoder, F2 controls the purple wire ...

  What is Sw (Switch) Mode? Switch mode is used by throttles for sending commands to accessory decoders and for changing option switches in your LocoNet system. The most common use of switch mode is for operating turnouts.Switches are either thrown or closed.To change the position of a switch or turnout: 1. Press the SWCH key to enter switch mode. When you enter Switch mode, the throttle knobs & direction keys continue to control the loco addresses running on the throttle. Loco speed is displayed on the bar graph and loco direction is displayed on the direction indicators for each ...

The DN163A0 is set up at the factory to control six functions. The unit is prewired with two golden-white LEDs set up for directional lighting as F0F/F0F+ for the front light and F0R/F0R+ for the rear light. Functions F1 (Green), F2 (Violet), F3 (Brown) and F4 (White/Yellow) can be used by soldering a wire from the pad for the function you wish to use to the lamp (or other function) you wish to control. The wire colors indicated are the standard color code used in the industry (you can use any color you like). These colors are important if you ...

Configurable strobes are set up using CV's 49, 50 and 61. Configurable strobe function leads can be programmed with a limited number of simulated lighting effects similar to FX effects but without as many options. Configurable strobes are offered in those few Digitrax decoders where there was not enough "code space" to provide full FX features.CV49 controls F0 Forward, the white function lead. CV50 controls F0 reverse, the yellow function lead.CV61 enables the configurable strobe operation.To set up configurable strobe lights:1. Program CV61 with the CV value "01" to enable configurable strobe operation.2. Program the CV value for CVs 49 ...

The DN163K1D is set up at the factory to control six functions. The unit is prewired with two white LED's set up for directional lighting as F0F/F0F+ for the front light and F0R/F0R+ for the rear light. Functions F1 (Green), F2 (Violet), F3 (Brown) and F4 (White/Yellow) can be used by soldering a wire from the pad for the function you wish to use to the lamp (or other function) you wish to control. The wire colors indicated are the standard color code used in the industry (you can use any color you like). These colors are important if you ...

Duplex Radio throttles (D throttles), do not have to be plugged in to add loco addresses to consists. Simplex Radio (R throttles) and Tethered/Infrared throttles must be plugged in to LocoNet to add loco addresses to consists.  To set up a consist using your DT400/DT402 Series throttle: 1. Select the loco address of the TOP loco on the R Throttle Knob. 2. Select the address of the loco you want to consist to the TOP loco on the L Throttle Knob. 3. Move the two locomotives into position. The locomotives can be headed in either direction. They can be adjacent to each other ...

Is this part of the instructions sheet?  If so, we don't need it here?  ZIThe DN163K2 is set up at the factory to control six functions. The unit is prewired with two golden-white LEDs set up for directional lighting as F0F/F0F+ for the front light and F0R/F0R+ for the rear light. Functions F1 (Green), F2 (Violet), F3 (Brown) and F4 (White/Yellow) can be used by soldering a wire from the pad for the function you wish to use to the lamp (or other function) you wish to control. The wire colors indicated are the standard color code used in the ...

Using Digitrax Decoders with AC Motors and Lionel Type E UnitsThis application note shows how Lionel users and other users of AC motors can use DCC to run their layouts.This example shows a wiring diagram for an AC universal motor with two-wire field coil. For this type of motor you must add a bridge rectifier to control the polarity to the motor's field coil.  This type of motor is found in AC locos built from the 1950s through today.Some Lionel type AC locos have motors with three wire field coils and an E Unit.  Half of the coil is used ...

  Many prototype trains use multiple locomotives to provide the necessary power to pull or push the train. This practice is called Multiple Unit consisting, usually shortened to MU or consisting. The DT300 Throttle can provide three methods of consist control:1. The Basic Consisting method, which is not commonly used, is to program all the locomotives in a consist to the same address and run them on one throttle. In this case all the locomotives must be headed in the same direction, head to tail, head to tail, head to tail. If you use decoders that allow you to set ...

Digitrax Command Stations can operate one locomotive on your layout that does not have a decoder installed. This loco is called an "analog," "conventional," or "non-DCC equipped" locomotive. To operate an analog locomotive with Digitrax you will use address 00 to send commands to the locomotive.  The magic that makes this happen is called zero stretching. With Zero Stretching, an analog locomotive going forward receives an unusually long positive voltage, followed by a very short negative voltage. The much larger positive voltage ensures the locomotive moves forward. The brief negative pulse causes a low buzzing that will vary with the speed of the locomotive. This method ...

In earlier generations of model railroading, the reverse loop (reversing section) was the bane of many model railroaders. As the rails of a track come back upon themselves, an electrical short circuit is created. In the analog control world, the solution is to use toggle switches and special wiring to allow the locomotive to move on to the next block. Electromechanical solutions relying on relays and track detectors can also be used to automate reversing on an analog layout. The wye is another example of a reversing section on a layout. One of the advantages of digital command control is ...

Since each system, no matter how large, needs only one command station, you need only one WTL12 (or other Digitrax Command Station) performing this function. Any additional WTL12s must be converted to a booster by following the startup directions described below: Disconnect the power from the WTL12 unit Press and Hold the VOL- key Reconnect the power while continuing to hold the VOL- key Release the VOL- key The WTL12 is now configured as a booster/throttle only.  The power button will be lit up red on the right side. The command station determines the total number of locomotive addresses your ...

Digitrax Command Stations offer three methods of multiple unit (MU) or consist control:1. Basic Consisting2. Advanced Consisting3. Universal Consisting (the Digitrax preferred method) By definition, Digitrax always adds loco addresses to the “TOP” loco address in a consist.   The “TOP” loco is special, in that it is the address that receives the speed & direction commands for the entire consist.   All non TOP loco addresses added to the consist are controlled by commands sent to the “TOP” loco.   The TOP locomotive does not have to be a physical loco on the track, it can be a phantom. ...

The DCS50 Zephyr normally treats Function 3 as an on/off function unless you set it up as a non-latching function like Function 2. This means that F3 can be used either as a normal function operating as an "On / Off" switch, or to control a function that only requires a momentary activation like some couplers.To set up Function 3 as a non-latching function, set the DCS50’s Option Switch 6 to closed as follows:1. Press the PROG key. The last programming mode used by the DCS50 will be displayed.2. Press the SWITCH key. The display shows the last switch used ...

The DN163A1 is set up at the factory to control six functions. The unit is prewired with two golden-white LEDs set up for directional lighting as F0F/F0F+ for the front light and F0R/F0R+ for the rear light. Functions F1 (Green), F2 (Violet), F3 (Brown) and F4 (White/Yellow) can be used by soldering a wire from the pad for the function you wish to use to the lamp (or other function) you wish to control. The wire colors indicated are the standard color code used in the industry (you can use any color you like). These colors are important if you ...

The UT4 comes InfraReady for layouts that are equipped with one or more UR90 infrared receivers. For Infrared operation:1. Install one or more UR90 infrared receivers on your layout.  These should be connected to LocoNet and powered.  If you have UR92s and/or UR91s present on the layout, these also support infrared operation.  You will need enough infrared receivers installed on the layout so that the throttles you use can "see" the receivers since the transmission is line of sight.  You may also encounter problems in rooms where there are large windows that would interfere with the transmission.2. Install a 9 ...

Decoders with FX3 features have 8 user configurable, independent special effects generators.  All current production Digitrax Decoders use FX3 function features. These are set up by programming CV values as described below.  If your decoder is not a Series 3 decoder, please check the spec sheet to determine which type of functions it supports.FX3 functions incorporate FX generators with additional dynamic and static qualifiers.  FX3 functions are fully remappable so they can be controlled by any function key on your system.  A master light switch can be set up to turn off all lights on a locomotive. Functions associated with advanced ...

The DS64 is a powerful stationary decoder that can be used to control different devices on your railroad. It can be used on both command control and analog model railroads. The DS64 is configured by the settings of different Option Switches (OpSw's), listed below: OpSw01 - Solenoid or slow motion devices OpSw02 - Pulse Timeout, 200ms OpSw03 - Pulse Timeout, 400ms OpSw04 - Pulse Timeout, 800ms OpSw05 - Pulse Timeout, 1600ms OpSw06 - Output Auto Power Up OpSw07 - Factory-default Reset OpSw08 - Regular/Extended Startup Delay OPSw09 - Timeout Option OpSw10 - Throttle/Computer Option OpSw12 - Sensor Input Option OpSw13 ...

Needs to be investigated  Z.I am looking at buying one of your Super Chief systems. My question is :- Do you have to carry a bus under the boards or could you use an adhesive copper tape on the top of the board .  My system will be totally new; layout size 10 foot 6 inches x 8 foot.  Model Rail DVD showed this.The core power bus of the railroad is an important component.  Remember, the Super Chief will be delivering either 5 Amps or 8 Amps of electrical power.  Your interest is to make sure that sufficient power readily ...

The following CV set up simulates prototypical ditch lights that are on steady when running and alternately flashing when the horn blows. The ditch lights will be on when the engine is running, when you simulate blowing the horn by going into function mode and pressing F2 the ditch lights will flash on alternate sides of the loco. Note, the F2 key on Digitrax throttles is set up as a non-latching function so that the function assigned to F2 will be "ON" as long as you hold the F2 key down and will go "OFF" when it is released. Follow ...

There are many different CVs that have been defined to control operating characteristics of your locomotives. Your decoder manual has a complete listing of CVs that are available with specific decoders, what they do and suggested values for each CV. Programming these CVs is simple:1. Be sure that only the locomotive you want to program is on the programming track.2. Press the PROG Key to enter programming mode. The DCS50 will display one of the programming modes available. Digitrax recommends the Paged Mode when you are using the programming track. As you press the PROG Key repeatedly, you will cycle ...

The DN142 comes from the factory with BACK EMF SPEED STABILIZATION (BEMF) turned off. Follow this procedure to turn it on and to adjust it. Later generations of Digitrax mobile decoders do not require this procedure. Activation: To activate the BEMF feature, change CV57 to a value of 06. This will give good performance with most brands of locomotives. If the locomotive surges while using BEMF use a lower value for CV56. It may also be necessary to adjust CV's 55, 56, & 57 to get the motor performance desired for your particular locomotive. Adjustment: 1. Program CV57 (Droop control) ...

To control the speed of a locomotive:1. Select the loco address on the Zephyr.2.  Place the reverse lever [2] into either forward or reverse.3. Turn the Throttle Knob  [1] clockwise to increase speed and counterclockwise to decrease speed. Setting Speed LimitsYou can limit the speed on any locomotive controlled by the DCS50. This feature is very useful if you are running your layout with young children who want to make the trains GO FAST!!! By setting a reasonable speed limit on the throttles used by the children, everyone can have more fun with the trains.To set a “speed limit” for ...

The TSMK, Terminal Strip Mounting Kit, includes 2 terminal strip boards with resistors for easy installation. The Digitrax Terminal Strip Mounting Kit makes it simple to connect any scale or model signal to the Digitrax signaling system without soldering. Simply connect the wires from the signal to the TSMK’s screw terminals and plug it in to the SE8C’s Signal Driver Cable. Using the Terminal Strip circuit boards You can attach any of a variety of types of model signal masts in any scale you choose to the Terminal Strip Mounting Kit. The Terminal Strip Mounting Kit has 10 screw terminals ...

Railroad & Co. is a suite of computer programs for both digitally and conventionally controlled model railroads. The BDL168 needs to have several Option Switches changed for proper operation with Railroad & Co.'s Train Controller program. Our recommendations are based upon experience with earlier versions of the program: Suggested BDL168 Settings for Railroad & Co. (from European users): OpSw9 = Closed (No message sent if un-powered) OpSw36 = Closed (Ignore GPON) OpSw37 = Closed (Long delays for sensors) OpSw38 = Closed (Extra long delay for sensors) OpSw39 = Closed (Verbose mode enabled) OpSw43 = Closed (Filter for transponding disabled) OpSw45 ...

Q:  How do I program the PM42 Option Switches (OpSw) with a DT400 throttle? A:  The PM42 OpSw settings are used to set up the PM42, adjusting the trip current, short circuit management (including sensitivity), and/or auto-reversing. Note: The factory default setting on all PM42 OpSws is “thrown” or “t”. Follow the steps outlined below to program the OpSw settings of the PM42 using the DT400 series throttle with any Digitrax command system. 1) Connect the PM42 to a DCS50, DCS51, DB150, DCS100, or DCS200 with a standard LocoNet cable. 2) Connect the PM42 to an external power source; Digitrax ...

I've recently purchased a DCS50 system to run my HO trains. Since I'm new to the hobby I'm throughly confused on what parts I need to wire my 4 x 8 foot track to my control box. How many feeder lines do I need and what size do you recommend, and how do I hook these up to my control box? What size does bus wire do I need and how do I connect all this to my system? So far, all the articles just make recommendations general terms without specifics. I have purchased 2 terminal clips but have yet ...

  Q:  How do I program the PM42 Op Switches with a DT300 throttle? A:  The PM42 OpSw settings are used to set up the PM42, adjusting the trip current, short circuit management (including sensitivity), and/or auto-reversing. Note: The factory default setting on all PM42 OpSws is “thrown” or “t”. Follow the steps outlined below to program the OpSw settings of the PM42 using the DT300 throttle with any Digitrax command system. 1) Connect the PM42 to a DB150, DSC050, DSC100 or DSC200 with a standard LocoNet cable. 2) Connect the PM42 to an external power source; Digitrax recommends the ...

This is a feature that helps prevent having the same address selected on multiple throttles and creating unexpected operations.  When you steal you are truly stealing control of the locomotive instead of sharing it. When using a DT402 R2 throttle with an Advanced Command Station featuring expanded slots, each throttle ID is associated with the Loco Addresses it has selected.  With a when you select a Loco that is selected on another throttle the second throttle will take ownership of the Loco and it will be deselected from the first throttle. By first throttle will display “StealZap” meaning it has ...

  Simple Example of a Yard Ladder with Manual Route Buttons in a hidden yard. Set DS64 OptionSwitches 11 and 15 to 'c' closed to enable route commands from local inputs. Make sure the momentary-on push buttons are wired as shown in Fig.1 above. OPSw 11 enables the local inputs to trigger the routes stored in the DS64. A1 will trigger route1, S1 will trigger route 2, and so forth. OPSw 15 prevents the local inputs from directly triggering the outputs.Option Switch Configuration Press the OPS button on the powered DS64 for about three seconds until the red led begins ...

  How do I program the PM42 Op Switches with a DCS50 (Zephyr) throttle? The PM42 OpSw settings are used to set up the PM42, adjusting the trip current, short circuit management (including sensitivity), and/or auto-reversing. Note: The factory default setting on all PM42 OpSw's is “thrown” or “t”. Follow the steps outlined below to program the OpSw settings of the PM42 using the keypad of a Digitrax Zephyr. 1. Connect the PM42 to the Digitrax Zephyr with a standard LocoNet cable. 2. Connect the PM42 to an external power source; Digitrax recommends the PS14. Note: Before entering Switch Mode ...

Q:  I am trying to setup 4 Kato locomotives 3 SD-70MACs and 1 C-44-9, all with DN 163K1B decoders.  I am using the loadable speed tables V in the programing manual that came with my Super Chief for a starting point. I have spent a few hours with limited success. Do have any suggestions that may help simplify this process? A:  Because the decoders and command control system are digital, the commands sent from the command station based on the CV settings in each locomotive are always the same. It is the locomotive mechanisms that are different. Even with three "identical" locomotives from ...

DT402 & DT400 Series Throttle-Locomotive Recall The DT402 & DT400 Series Throttles store the last 4, 8,or 16 unique loco addresses used by the throttle in a recall stack; your throttle defaults to a 4 address recall stack.  Users often discover this feature when taking their throttle for use on another Digitrax railroad; they plug their throttle into the new LocoNet and discover their own locomotive addresses are still in their throttle.  The presence of stored locomotive addresses may make operations on your railroad easier.For example if you have your throttle set up for an 8 deep recall stack and the last 8 ...

Switch Mode is used for sending commands to accessory decoders and for changing Option Switches (OpSw) in your DCS50. The most common use of switch mode is for operating turnouts (track switches).To change the position of a turnout:This note assumes that you have already installed and programmed turnouts and turnout decoders on your layout.  Each turnout is connected to a stationary decoder that controls the operation of that turnout.  There are several different stationary decoders for this purpose such as DS64 and others.  Please see the related articles below.1. Press the SWITCH Key. 2. The last switch address selected by ...

Q:  I'm wanting to know how to MU two locomotives together that are in a tail to tail configuration. I know that this can be easily done with a DT400 or DT402 throttle but not sure how to do it with the Zephyr. A:  Make sure all the locos in the consist are traveling in the same physical direction on the track (both going to the left or to the right). Remember that "reversing" takes place in the locomotive not on the track, so it is important that the engines be traveling in the same direction when they are MU'd.  ...

The Digitrax DCS50 Zephyr is set at the factory to send 128 speed step commands to all mobile decoders.If you have a non-Digitrax decoder that can’t run in 128 speed step mode, you can change the number of speed steps the DCS50 sends to that decoder so that you will be able to control the decoder. This is called status editing the decoder. When you status edit a decoder, the DCS50 will send a different format to that specific decoder address without affecting the 128 speed step operation of Digitrax decoders and other 128 speed step decoders on the railroad.NOTE: ...

A cascaded route is where the last command of a route triggers the next route; this is also known to some as a nesting route. With the capacity of 8 turnouts per route, it becomes necessary to cascade routes if more than 8 turnouts are involved in a route. To highlight these possibilities, we use a very complex scenario with many turnouts and possible routes. Cascading routes allows the setup of long routes without the need for a computer. Since some routes exceed the capacity of 8 turnouts, the remaining turnouts of the long routes are setup in the second ...

PM42 Short Circuit/Auto-Reversing Failure When used with Zephyr (DCS50) The PM42 is designed to control 4 independent power subdistricts that can be set up as either a “Short Circuit Manager” (the factory setting) or as an “Auto-Reversing Controller.” The PM42 factory setting for trip current is 3 amps. The trip current can be modified to settings from 1.5 amps – 12 amps to accommodate the needs of your system. In addition, each of the 4 power subdistricts can be set for slow, regular, faster or fastest short circuit management. While a trip current of 3 amps will work with most ...

Q: I have a late 70's or early 80's Athearn EMD DD40. An article on Wiring For DCC suggested a DH83FX - 2amp decoder for Athearn "Covered Wagons." The pictures look like the inside of my loco except the DD40 has twin motors with joined drive shafts. In researching your site, I realize that the DH83FX is no longer manufactured, but I was led to the DH163AT as the current replacement. Will this work? I have some other Athearn SD40 units, same vintage, but single motors. Is this the correct decoder for them? A: The "AT" in the decoder name ...

Kato recommends, and Digitrax concurs, that the best DCC performance with the Unitrack turnout requires that you set each turnout to "Non-power-routing". Kato has offered a variety of turnouts in their H0 Unitrack line.381-2840 - LH, 490mm Radius, selectable operating mode with power or non-power routing.381-2841 - RH  490mm Radius, selectable operating mode with power or non-power routing.381-2850 - LH, #4, power routing only. * Some additional power feeds required for use with DCC 381-2851 - RH, #4, power routing only. * Some additional power feeds required for use with DCC381-2860 - LH, #6, live or insulated frogs, power or non-power ...

Digitrax decoders have outputs that can control lamps and other on/off devices installed in your locomotive.  These are called functions.  Functions are things like: lamps, sound units, smoke units, etc. All Digitrax decoders are equipped with two or more function outputs that are used to turn functions on and off.Decoder function outputs can be:1.   Leads (wires) attached to the decoder that are used to hook up external functions.  See Table I below for wire color codes used on Digitrax decoders.or2.   Pre-wired function outputs that hook up by just plugging in the decoder. This is the case for decoders that ...

There is a numeric keypad on the DT402/DT400 throttle.  The numeric keys on the keypad are primarily related to the throttle mode shown in the LCD’s mode indicator area, but can be used for numeric entry and function control in other modes. For example, when the command station is in the Function Mode Fn, the numeric keys are used for function control. When the command station is in the Locomotive Mode,Lo, the numeric keys are used to enter loco addresses. When the command station is in the Switch Mode is Sw, the numeric keys are used to enter switch addresses.In ...

DT402 R2 Release Notes Access to Expanded Slots Updating the DT402 to R2 gives the throttle access to expanded slots in the DCS240 Advanced Command Station.  Access to these expanded slots are only available when IR and Radio(RF1) options are set to OFF in your throttle.  This means that throttles working in IR mode or Simplex Radio will not have access to the expanded slots.  Simplex Radio throttles(DT402R) will have access expanded slots if radio(RF1) is set to off and the throttle is plugged in.  It is recommended that throttles be factory reset after upgrading the firmware to R2.  By ...

The DS51K1 is designed specifically for Kato N-Scale turnouts.  Kato manufactures both a #4 and #6 turnout; one DS51K1 will control one Kato turnout solenoid.  In cases where there are two turnouts in a crossover track arrangement, you must use two DS51K1s, each assigned to the same address.Installation of the four decoder wires requires soldering skills.  And, just to make things interesting, Kato uses the colors of black and red for their turnout control wires, while Digitrax uses black and red for the power and data bus.  You will make four connections, two connected to the turnout motor and two ...

Problem: PM42 Short Circuit/Auto-Reversing failure when used with Zephyr (DCS50/DCS51)The PM42 is designed to control 4 independent power subdistricts that can be set up as either a “Short Circuit Manager” (the factory setting) or as an “Auto-Reversing Controller.” The PM42 factory setting for trip current is 3 amps. The trip current can be modified to settings from 1.5 amps – 12 amps to accommodate the needs of your system. In addition, each of the 4 power subdistricts can be set for slow, regular, faster or fastest short circuit management.While a trip current of 3 amps will work with most boosters, ...

Three Step Speed Table CV02 V-Start (Start Voltage) CV06 V-Mid (Mid Point Voltage) CV05 V-Max (Maximum Voltage)When you are using a throttle to control a locomotive, you will notice that as you increase and decrease the speed, the loco responds to the change in throttle settings according to the relationship between motor voltage applied and the throttle setting. This is called the throttle response curve. Decoders are shipped from the factory with a linear throttle response curve. This means that as you increase the throttle setting from 0 to full speed, the loco will look like the default curve in ...

  Zephyr Xtra                             Super Empire Builder Xtra                            Super Chief Xtra                                                Command Station DCS51 DB150 DCS100 Current Rating 3 Amps 5 Amps 5 Amps or 8 Amps Throttle DCS51 DT402 DT402 Throttle Controls Single Knob, Direction Switch Dual click encoder throttles Dual click encoder throttles Function Control F0-F29 F0-F29 F0-F29 Keypad Full Numeric Keypad Full Numeric Keypad Full Numeric Keypad Display Large LED Multi-line Backlit LCD Multi-line Backlit LCD Throttle Capacity 20 22 120 Loco Capacity 20 22 120 Loco Address Range 00-9000+ 00-9000+ 00-9000+ Stationary Address Range 01-999 00-999 00-999 Turnout Position Reporting Yes, last command sent Yes, last ...

OPS Mode Programming Soundtraxx Tsunami Sound Decoders      This article was originally written for Soundtraxx Tsunami decoders.  It will also work for other manufacturer's sound decoders.   The individual CVs that make up an address will need to be programmed individually. These CVs are AD1, CV17, CV18 and CV29. AD1 is the Primary (short address) Default 03, Acceptable Values 1-127 CV17, CV18 are the two CVs that make up the Extended (long address), Acceptable Values 128 - 9983 CV29 is for Decoder Configuration. Values are 06 for 2-digit and 38 for 4-digit addressing. There are many other values that ...

DCS240 FAQ   I’m getting a “StealZap” or message on my DT402 rev 2 throttle. What is this? This is a feature that helps prevent having the same address selected on multiple throttles and creating unexpected operations.  When you steal you are truly stealing control of the locomotive instead of sharing it as was the case before the DCS240 and DT402 R2 firmware were released. When using a DT402 R2 throttle with an Advanced Command Station featuring expanded slots, each throttle ID is associated with the Loco Addresses it has selected.  When you select a Loco that is selected on ...

These instructions will get you up and running quickly. A full description of all controls and technical reference information are included later in this section of the Tech Support Depot. This section assumes that you are using a new set straight out of the box. If your set is radio equipped, we recommend that you follow this quick start guide without using radio to learn the basics. When you are successfully running your radio throttle tethered to the system, then go to the DT400 series tetherless overview article to learn how to install the radio option. Connect the DB150 to the ...

A model railroad continues to be interesting if there are opportunities for growth and for operation. Extra detail can be added, scenery can be enhanced, but in the end, if the railroad is interesting to operate, it will continue to be a source of enjoyment for its owner for many years. The Texas & Southwestern has many opportunities for interesting train operations. The Texas & Southwestern is both a passenger railroad and a freight railroad. Passenger Point to Point Our trusty RDC (rail diesel car) allows for one train to operate in a point to point fashion. In fact, all ...

Good DCC practice means good planning for the electrical needs of the railroad. Here, we talk about the power needs of the Texas & Southwestern. Anticipating Power Consumption The core of the Texas & Southwestern's DCC control system will be the DCS50 Zephyr, which is very appropriate for a small railroad. Zephyr has 10 "slots", memory locations in the command station each holding an active decoder address. Rated at 2.5 Amps, the Zephyr should also be enough to handle the power needs of the railroad, but if more power is needed, then T&SW can easily be expanded with an additional booster ...

This installation procedure is for the DIGITRAX DH166/DH126 decoder. Alternatively, you can use a Digitrax DN166 in this installation. If you use the DN166 the installation will require fewer engine modifications because of the smaller physical size of the decoder.Note any decoder of smaller physical size can be used in this installation.  DN136D, DN166, DZ126, DZ126, DZ146 are all possibilities. After removing the shell from the locomotive chassis, note the color and location of each of the various wires.  All connections must be soldered with rosin core solder and insulated with shrink tubing.We will locate the decoder in the forward ...

The LOCO Key is used for selecting loco addresses on to the throttles so that the address is controlled by the throttle. Sometimes people call this “assigning locos to throttles.” DT100, DT200, & DT300 series throttles used the SEL or SET/SEL Keys for this throttle task.

  I have just purchased a Walthers 90' turntable that is DCC ready [sic]. How do I connect this? It appears to have a LocoNet connector. Any help would be great. Walthers manufactures two different turntables in H0; the 933-2829 is an automated turntable with full track indexing. While both can be operated in the DCC environment, the Walthers turntable is not DCC ready in the manner that you assume. What appears to be a LocoNet connector is actually the connector for the turntable's proprietary controller. Full documentation for this turntable is available at the Walthers web site.

I have a Zephyr control station and I would like to set up a Braking District as shown in your PDF sheet in the Basic DCC issue section; you show a DCS100 connecting through a modified LocoNet cable to a DBxxx booster -- can this same setup be used with a Zephyr system? No. The braking district described here uses Super Chief and a second booster to create a braking district. Super Chief is configured by toggling OpSw47 and connecting it to a second booster that is properly configured. Because Zephyr does not have an available OpSw47, and because there ...

I have a Zephyr and a DB150. How can I wire the two together so that the Zephyr acts as throttle and the DB150 supplies power? At this this time I have only a single block. The easiest way to handle this situation is to divide the railroad up into two power districts. If one command station unit is more powerful than the other, then the area controlled by the weaker unit (in this case, the 2.5 Amp Zephyr) could simply be a single siding or engine terminal. The Zephyr would then become a booster, supplying power to this small ...

CV54: Torque Compensation & Switching Speed In FX3 decoders, CV54 is used to control the decoder's torque compensation and switching speed features. Torque Compensation improves loco performance by internally adjusting for the loss of torque caused by SuperSonic™ operation. This feature is turned on at the factory. Switching speed gives you fast access to lower speeds used in switching operations. This feature effectively reduces the throttle's target speed by about 50% and reduces the effects of acceleration (CV03) and deceleration (CV04) programmed into the decoder by 1/4 when the user activates this mode by turning on F6.

All current Digitrax mobile decoders have FX3: all function outputs incorporate FX generators for prototypical lighting effects full function re-mapping so you can choose which function (F0-F12) controls each function lead

On Page 9 of the instructions (under 5.0 Op Sw Set Up) I am to connect my DT400 throttle to my powered PM42 . . . 1. Does “powered” mean having the PS-14 power supply to the PM42 connected and energized? Yes. We took another look at the documentation and it means that the PM42 should be operating with its own power supply. What you are doing is using the DT400 to program the internal controls of the PM42; to do so would require that the PM42 be in its operating state, thus the power supply. The DT400 is merely ...

The headlights of my locomotive aren't acting properly. If you can’t control the operation of the lights in your locomotive with the DT400 (in default 128, or 28 speed step mode), be sure that the decoder is programmed in advanced 28 speed step mode. Do this by programming CV29 with a decimal value of 06.

  Digitrax AR1 is a DCC Automatic Reversing Controller.  We have become aware of another product of a similar name that may cause our customers some confusion. Circuitron makes an automatic reversing unit called the AR-1 that is used for automatic reversing of analog powered trains. The Digitrax AR1 is not the same device and does not work in the same way.

Q: What is the exact reset procedure for a TF4? I tried both with series 3 procedure (CV8) and the other mobile decoders procedure with no success. My TF4 remains out of control. However, the white output makes the LED on my decoder testing board flicker. A: Since CV8 to 08 only works on series 3 and later decoders, it does not work on the function only decoders. TF4's CVs must be reset manually to factory values. The Factory Default Values are: CV64 000 CV61 002 CV49 000 CV50 000

Digitrax defines the TOP loco as the loco on the R Throttle Knob at the time when the MU add is performed.  This will be the locomotive address that controls the consist.

Q:  How do you reverse the direction of the engine so you can run them on the same train with one in the backwards position?A:  Before consisting the locos, make sure that both are traveling in the SAME PHYSICAL DIRECTION ON THE TRACK.  The locomotives can be arranged in either orientation hood forward or backward as long as they are set to travel in the same physical direction when you set up the consist.(The direction indicators on the throttles may or may not match, the important thing is that the locomotives are set up to move in the same direction and are ...

  Whether functions 0-8 are on or off for the currently active loco address is displayed on the top line of the LCD. The number for the activated functions for the active throttle (the one with blinking smoke) are displayed. Up to eight functions can be controlled by the DT300. To view the function status of either throttle, simply press the throttle knob to display the active functions for that throttle.

  The DT300 controls devices and operations in different modes:

Stealing, or "sharing" is defined as acquiring control of a loco address that is being used by someone else on another throttle. To ‘Steal’ a loco:1. Unplug the UT4 from the LocoNet port.2. Dial up the address of the loco you want to steal.3. Press and hold the ‘STEAL’ key while plugging the throttle into the LocoNet jack. Note: To steal or dispatch another loco, you must unplug the UT4 and repeat the above sequence.

Challenger was Digitrax' first commercially produced system.  It was manufactured from 1993 to 1998.It included:A CT4 analog throttle that controlled 4 addresses.  These were color coded.A DB100 command station/booster.A decoder (either HO or N scale).The CT4 throttle is the only throttle ever manufactured by Digitrax that could not be used on other Digitrax systems.

Use this table as a planning guide for setting up a DS64 for route control.

QUICK INSTALLATION Notes for users with decoders not made by Digitrax:1. The DCS50 command station operates in 128 speed step mode. If you are using a locomotive with a decoder that does not have 128 step capability you will have to adjust either the decoder or the DCS50 so that both are using the same number of speed steps to communicate. We call this procedure status editing. You can status edit each individual decoder or you can change the DCS50’s system default by setting the DCS50’s Option Switches 21-23 and run all of your decoders with fewer speed steps to ...

Function Controls F9-F12 Not Responding Properly on Broadway Limited LocomotivesSome Broadway Limited Locomotives use Functions F0-F12 when running in DCC mode. In some cases F9-F12 do not respond properly. To remedy this problem, simply reset the locomotive to the factory default setting per the Broadway Limited Instructions you received with your locomotive.Note: F9-F12 are accessible on the DT400 & DT402 series throttles when used in conjunction with the DCS100 command station.

When using the your PM42 with an AR1 Auto Reversing controller do not use the "fastest setting" in the Short Circuit Sensitivity Settings section:

The SE8C can be used in 2 aspect mode.  The signal control address range will be in blocks of 32 instead of 64.To use this mode set Option Switch 02 to closed (OpSw02=c).

Digitrax decoders with numbers ending in "3" have SuperSonic™. Decoders control the locomotive's speed through Pulse Width Modulation. When these pulses are within the human hearing range, it can cause some buzzing in some locomotives.CV09: SuperSonic™ The SuperSonicTM feature allows you to adjust the PWM (pulse width modulation) frequency of your decoder to reduce the humming noise that is characteristic of the DCC signal. Digitrax decoders that have this feature are shipped with the value set at 000/x00 or maximum PWM. To change this value, you can set any value from 000/x00 (max) to 255/xFF (min). Use of this feature ...

Dispatching is a special way of offering a locomotive address to a UT1 or UT2 to run. The address is set up and then dispatched to the system to be acquired by the next throttle that presses its ACQUIRE Key. This is not the same as releasing a locomotive address from the system. Releasing an address clears it from the locomotive slot to make room for another locomotive address to be run by the command station. 1. Set the address selector switches to address “99” then press the “ACQ” button. 2. The Status LED will light green showing that you ...

When I turn the throttle knob, my locomotive quickly changes speed in large increments.A very common common problem is the throttle "jumping" 3 or more steps each time the throttle is turned.  This simply means the system is not set for 128 Speed Steps in that particular address.Earlier decoders, and some less expensive decoders, were set up for 28-speed steps or even 14-speed steps; very early command stations were only capable of handling 28 or 14 speed steps.  Technology has marched on, and most modern systems now operate using 128 Speed Steps.When first turned on, Digitrax systems are set to ...

The DT400 and DT400R are full function hand held throttles that include 2 independent throttles and a common keypad to control up to 13 functions (0-12), turnouts and programming.The DT400 offers wireless infrared remote operation used in conjunction with a UR90 or UR91 Receiver Unit.  The DT400 requires a 9 volt battery for infrared operation; the DT400 does not require a battery in normal walkaround operation. If you do not install a battery, the throttle display will be off while you are unplugged from the system. The DT400R offers wireless radio remote operation when used in conjunction with a UR91 ...

The OPTN t Key is used to enter the Option Mode to set throttle and system options. It is also used to issue t (thrown) commands when the throttle is in Switch mode.In the case of turnout control:t=thrown, when a "t" command is sent, the turnout is set for the diverging route through the curved leg.

If you want to reset the SE8C to its factory settings, follow this procedure: No track power is required for testing, but you will need a working LocoNet connection and throttle, or a PC running DCC control software that is connected to LocoNet. a. Press and hold the Option Button until the red LED starts to blink. b. Release the button, the red and green LEDs will blink alternately indicating that you are in Option Switch programming mode. c. Go into SWITCH mode on your throttle or PC. d. Select Switch 20. e. Close and then Throw the switch to ...

What is the Digitrax LocoMotion(™) System? The LocoMotion(™) System is available with many decoders. It offers: 128 speed step control Smooth deceleration to stop before changing direction when locomotive is reversed Torque compensation for the smoothest operation ever Momentum with acceleration and deceleration settings Set normal direction of travel for your loco Switching speed feature for quick access to slower switching speeds Simple 3 step speed tables are easy to set up Advanced 28 step speed tables with 256 level resolution Series 3 decoders have smooth scaleable speed stabilization feature

Remove the 8 pin dummy plug from Lifelike Proto 2000 light board.Before installing the decoder in the locomotive, unsolder the yellow wire from pin 2 and re-solder it to pin 3 (empty pin) on the decoder harness plug board.  We strongly recommend that you mark the decoder and/or harness so that you will remember that you have modified it.  If you use the decoder and/or harness modified in this manner in a different locomotive, your lights will not work correctly. Plug the decoder and harness into the light board in the locomotive.Program CVs as follows:  CV33 = 001, CV34 = ...

Selecting a locomotive address to run on your DT4001. Place the locomotive you want to run on the track.  Turn the throttle knob you want to run a loco on slightly counter clock-wise letting the controller know you want to address that side. 2. Press the "LOCO" key 3. Select the address of the loco by entering it using the numeric key pad.,4. Press the "LOCO" key to complete address selection.

  CV29 is assigned a single value which chooses a combination of specific effects: 1. Speed step control. 2. Speed table On or Off. 3. Analog mode conversion On or Off. 4. Normal Direction of Travel (NDOT). 5. 2 digit addressing or 4 digit addressing. Normal Direction of Travel, or NDOT for short, lets you set up your locos to run either long hood forward or short hood forward. Because with DCC the decoder determines which way the loco will move independent of track polarity, you can set up either direction as forward depending on the prototype. (Not all decoders ...

The STOP key has two uses: as an emergency stop for the locos on the layout and as a shift key used in conjunction with other keys.Emergency Stop keyThe factory setting for the STOP key is for Local Emergency Stop which stops just the locos controlled by the two throttle knobs on the DT300. The STOP key can also be set for Global Emergency Stop which will stop all of the locos on the layout.  This is done by setting throttle option switches.Using the Stop key as a Shift KeyThe STOP key is also used as a shift key in ...

There are two throttles in the "300" series: The DT300 connects into LocoNet by a 7' cable. The cable allows flexibility in movement. The throttle can be disconnected to move to another point on the layout and reconnected to LocoNet without losing the acquired locomotive. The unit will also work wireless using Infrared signals when used with either a UR90 or UR91 or UR92.   The DT300R is a simplex radio control throttle with a 1' cable to connect into LocoNet. The throttle is plugged into LocoNet to select a locomotive or to program a locomotive and then can be disconnected ...

Q:  Will Digitrax Transponding affect my existing boosters, track wiring or locomotive pickups?A:  No. Digitrax transponding is designed to be sued with DCC compatible boosters made by all DCC manufacturers, track wiring & locomotive pickups without causing any damage or operational problems with existing DCC track signals. Unlike other "bi-directional" systems, no high current spikes are used by Digitrax transponding that can cause problems with boosters and wiring. Digitrax transponding does not require the replacement or modification of existing control equipment or infrastructure.

The CLOC, "c" Key is used to toggle between displaying and not displaying the current fast clock time. It is also used to issue c (closed) commands when the throttle is in Switch mode.In the case of turnout control:c=closed, when a "c" command is sent, the turnout is set for the main line with routing through the straight leg of the turnout.

Q:  Can I add a booster to my Zephyr? A:  Yes. Since the DCS51 Zephyr Xtra and DCS50 Zephyr are equipped with LocoNet, adding additional boosters is easy; you simply divide your railroad up into power districts and add the boosters and their individual power supplies. These are connected together using LocoNet cables. Because the Zephyr Xtra is rated at 3 amps and the Zephyr is rated at 2.5 amps: most boosters have higher ratings, you may want to have the Zephyr control a smaller area that has fewer power consumers (locomotives, lighted passenger cars), such as a main line ...

When a consist is added within a different consist, this is called a nested consist.1.  Select the TOP loco of the consist you want to control the nested consist on the R Throttle.2.  Select the TOP loco of the consist you want to nest on the L Throttle. 3.  Press the MU key followed by the + Key to create the nested consist.4.  When it is added to the current R Throttle “TOP” loco it will become a “nested” consist. The nested consist is MU'ed and is part of the new nested consist. To remove a consist from the nested consist, select the TOP loco of ...

DT400 can be set up to handle stop commands globally or locally. The default is local control. With local stop, when the EMRG STOP Key is pressed once the loco on the active throttle will stop and when the EMRG STOP Key is pressed a second time, the loco on the other throttle knob will stop. To resume operation, use the throttle knobs to increase speed of the locos from 0. With global stop enabled, pressing the EMRG STOP Key will stop all locos on the layout and you will see the DT400’s track power indicator blinking on and off. ...

Can I mix solenoid & slow motion turnout motors on a single DS64?No.The DS64 is configured for either for solenoid turnouts (the default setting)  OR slow motion turnouts. Only one type of turnout motor can be used on any particular DS64.If you have both slow motion and solenoid controlled turnouts on your railroad, different DS64s must be used for each type of turnout. 

FX3 decoders have motor isolation protection. If the decoder senses that the motor is not isolated, it will not run the motor. In this case, you will be able to control the loco’s functions but the motor will not work.FX decoders will blink the loco's lights when power is first applied to the decoder to warn you of a short circuit in your installation. If you see the lights blinking, immediately remove the loco from the track, locate the short circuit and correct the problem before proceeding. Do not leave the loco on the track with blinking lights because eventually, ...

Q: If my layout is experiencing short because of a thrown switch, how can you reset the switch using DCC? Many Digitrax operators use the PM42 Power Manager, which provides protection to four power sub-districts. One segment of the PM42 is used to control track switch power, with the balance being used for train power. When the inevitable happens and a train runs into a thrown switch, resulting in a short, the PM42 shuts down the track power in that segment, while the track switch power is maintained, allowing you to throw the offending switch. Because the PM42 isolates only ...

If the function you want to operate does not respond, check the following:1. Is Track Status [4] on? If not press the POWER key to turn it on. 2. Did you select the correct loco? If not, select it now.3. Is the function you want to use installed in the loco? If not, you may need to install it. Most new locos have a head lamp/backup lamp installed, but most do not have any additional lights or sounds installed.4. Change the position of the Direction Control Lever and see if the lamp comes on in the other direction. If the ...

I would like to use a Tomar Searchlight Signal such as model # 858. It has three color LED for each head. The SE8C manual shows the wiring example for bi-color LED signals. Is the SE8C able to control the three color LED signals as well? The bi-pole LED's can be used to produce a yellow "Approach" indication. The SE8C sends an AC signal to the LED, alternately lighting both the red and green sides to make a yellow (or "amber") Indication. Please see below: "A2" is connected to produce an approach (yellow) indication. You may find that the yellow ...

In addition to controlling turnouts via LocoNet with your DT400 throttle or with a computer program such as Railroad & Co., you can use local push buttons to operate turnouts. These buttons can be mounted near a particular turnout on the layout fascia or on a local track diagram. In this way, train crews can operate a turnout with a push of the button. The momentary push buttons are connected to the DS64 inputs marked S1, S2, S3 and S4. The return connection of each push button is made to "+COM. Here, a momentary button is connected to operate Turnout ...

The NMRA has already adopted a set of recommended practices for standardized sockets and plugs in N, HO, and Large scales. Many new HO locomotives are being made with this socket. Any command control manufacturer is free to make a decoder or other device that will plug into this socket whether it is a DCC decoder or not. In addition Digitrax makes board replacement decoders for many HO models to make installation even simpler.The N-scale socket and plug arrangement that was adopted is based on a European design that works well for many European locomotives.  Unfortunately, this design does not work in some US ...

While tetherless, the DT400/R operates as a one-way transmitter. The DT400/R must be plugged into LocoNet to select an available locomotive address. After an address is selected on your DT400/R, you can unplug from LocoNet and run the selected addresses with infrared or radio. The throttle will automatically convert to infrared or radio operation for all speed, direction, function, operations mode programming, and switch commands. Digitrax uses this safety selection procedure, which requires throttles be plugged into LocoNet to select a loco address to run. This is an important operational safety feature. Digitrax chose not to allow one way address ...

The sound in your decoder shuts down after you stop it and you are not using a Digitrax system for control. On some DCC systems decoders are not addressed by DCC packets after the locomotive is set to 0 speed. In this case after the CV11 timeout elapses (6 second factory default setting for SoundFX decoders), sound will shut down. To remove the timeout and prevent sound shutdown, set CV11=00.  This would leave the sound in the locomotive on until you remove power from the loco.Digitrax command stations continue to refresh locomotives by periodically sending packets to them as long ...

Will Digitrax work in an outdoor setting to control LGB, Bachmann, and Aristocraft engines on a small layout, possibly in a 20 x 20 area? What starter set would you recommend to run in the area stated? I would like wireless operation. Digitrax will work in that environment, with the same warnings that are associated with all other electrically powered devices and outdoor model railroads that use track power. The command systems must be protected from moisture, the track must be clean and the stationary decoders are not weatherproof. Wireless operation can be either infrared or radio, with radio being ...

Proven technology for bi-directional layout control without the need for modifications to your existing DCC system investment. Know the detection section and/or zone location and identification of any specific locomotive or other rolling stock equipped with a transponding device. Yes, now your dispatcher will be able to know "who you are and where you are"! Location and identification information are updated constantly on LocoNet and can be displayed on a track diagram. Adds operations mode readback of CVs to your layout. Data received by the system from mobile decoders can be used for display, automation, sound processing and much more. ...

What is the difference between Simplex and Duplex wireless operations and what are the advantages of each?The Digitrax DT400R, DT402R and UT4R throttles operate at the 916.5Mhz radio frequency.  These throttles both use the UR91 for radio communication.  The DT402D and UT4D operate at 2.4Ghz.  They require the UR92 for radio communication. The move to Duplex is meant to improve radio operations and add radio range.  Simplex (UR91) and Duplex (UR92) can operate on the same layout without any issues or interference with each otherWith duplex radio: You’ll select and run your locomotives without plugging in.   You'll dispatch locomotives ...

DCS50 Zephyr has ten "slots" available for train control.  When you are finished running a locomotive address, release it from your throttle so that it is available for other throttles to select and run and so that your command station will have room to run other addresses.To release an address from a throttle:1. With the loco address selected on the throttle, use the Throttle Knob to set the locomotive’s speed to STOP.2. Press the LOCO key to release the address from your throttle immediately. The address will begin to flash in the display.3. Press the EXIT key to dispatch the ...

Whoa!!!!!Each locomotive on your railroad has a mobile decoder which receives the command control signals from the command station and operates the locomotive motor accordingly.  The performance of mobile decoders can be adjusted by changing the Configuration Variables (CV's) of the decoder.  You can improve the speed performance of a locomotive by adjusting its start speed (CV02, V-Start), its mid-range speed (CV06, V-Mid) and its top speed (CV05 - V-Max).  You can also adjust the acceleration (CV03) and the deceleration (CV04).If the deceleration CV value you set for a particular loco is very large, this can make it look like ...

  Q:  Can I mix UP-5s with Radio and IR panels? I want to upgrade slowly and still use the 400 throttles and the UT throttles while I mail them in to you one at a time for conversion to radio. A:  Yes, and you can continue to use the UP5's after conversion to radio; for instance, if you have visitors who bring their own Digitrax non-radio throttles. That's the real genius of LocoNet, since you can add to your railroad in any way. Note that you will need to plug in your throttle to LocoNet initially to select the locomotive before you ...

How do I Increase BDL162 Detection Section Threshold SensitivityThe BDL162 has Option Switch settings to control detection sensitivity. The factory setting is OpSw19=t for a threshold sense for DCC occupancy of approximately 22 Kohms minimum. Changing OpSw19=c will set the threshold to 10 Kohm minimum. See the BDL162 instruction manual for details on setting the Option Switches. These settings will accommodate most layouts, though there may be circumstances when a higher threshold is desired, for example, in a high moisture environment or with G scale operations outside.To raise the threshold even further resistors can be added into the wiring between ...

Your locomotives look like the real thing, Digitrax LocoMotion™ System makes them run like the real thing, too!   128 speed step control.   Smooth deceleration to stop before changing direction when locomotive is reversed. No sudden, non-prototypical stops!   Torque compensation for the smoothest operation ever.   Momentum with acceleration and deceleration settings.   Set normal direction of travel for your loco.   Switching speed feature for quick access to slower switching speeds.   Simple 3 step speed tables are easy to set up.   Advanced 28 step speed tables with 256 level resolution.   Scaleable speed stabilization feature. ...

Short Address Programming Note When programming the short address (CV01) in your DZ121, the decoder will automatically set CV19 to 0, CV29 to 0, CV 55 to 80, CV56 to 30 & CV57 to 0. This is done to insure compatibility with DCC systems that only recognize short addressing (2 digit mode). When using long addressing (4 digit addressing) these CV's are not affected.After changing the short address (CV01), you will probably want to change CV29 to 06 or another appropriate value based on your operations. You can do this on the programming track or, if you forget, you can ...

I understand that LocoNet is used for transponding "feedback."  How can Digitrax systems handle both DCC and transponding without interfering with other track level communication and without adding another communication or feedback bus like other system have to do?LocoNet is a true network with future expandability built in. Part of that future is here now with transponding. LocoNet was engineered from the very beginning with things like this in mind.If you are already using Digitrax LocoNet, you will not have to add a "feedback bus" since this is already incorporated into LocoNet's design! If you are using transponding with a ...

I have a DH165AO decoder and Sound Bug and am installing the decoders into an Athearn SD70 Locomotive.The motor controller works and the sound as well. However, I am unable to get the lights to work. I connected the wire leads exactly as they where on the Athearn light board. Athearn uses twin forward and rear 1.5 volt lights yet the DH165AO will not power the bulbs. It will power one bulb at either end but not two. The single bulb setup glows very brightly but for a short time. So I tried using the 47 ohm resistor in parallel ...

DT400 Series Throttles - Make F2 Latching or Non-latching The F2 button on the DT400 is meant to control locomotive whistles and horns, so it is configured to be "momentary" or non-latching.  This means that the key will activate the horn or other function for as long as you hold the key down and stop when it is released. This was done to facilitate the use of a playable whistle in sound decoders. If you are not using F2 for this purpose on your layout, you can change the way the F2 key on the throttle works so that it latches on and ...

  Q: Can I assume that any of the 3 powering options for the DS64 are acceptable for OpSw changes? A:  Yes you can power the DS64 using any of the 3 options.  The DS64 is strictly looking for power, and doesn't need the DCC signal from the track to set op-switches. Q: If I have only 3 turnouts on a DS64, to complete the 4 point programming I have been inputting a bogus turnout number. Is that correct? A:  Yes, that is correct. Q: When setting OpSw 1, do I have to be connected to track power or can I power ...

What are the most common applications for the PR3? 1) Stand alone Sound FX programmer As a bench tool the PR3 is the first USB and second device designed by Digitrax for the programming of the SoundFX sound decoder. The PR3 does write to and read from the sound patterns of any SoundFX sound decoder. In addition the PR3 can write to and read from any CV of most current non sound mobile and function decoders found in today's market place. 2) Digitrax command station LocoNet to Computer interface As a layout control tool the PR3 is a second generation ...

Dispatching is a special feature incorporated in the LocoNet "language" to meet the needs of operators that wish to enforce a strict discipline in how operators gain access to locomotives during an operating session.Dispatching also lets you run MUs with basic throttles (such as the Utility Throttle series) that can't set up their own MU's and run four digit addresses on basic throttles that only have two digit capability (such as UT1 and UT2). It also lets you have newcomers run trains on the layout without giving them access to the entire operation.When you dispatch a locomotive address or MU ...

The DS64 is a powerful stationary decoder. If you have tried to program this stationary decoder and are having problems, there are several things that you can do before contacting Tech Support for further help. Is the DS64 receiving enough power? The DS64 can be powered in several different ways. Although it is possible to power the DS64 from track power, this has been a source of problems for many operators due to low voltage. This typically arises on a railroad that is using power in excess of the capacities of its power supplies. Have you programmed all four addresses ...

Installation Notes: 1. Do not exceed the decoder’s 500mA total function output rating. 2. If you plan to use functions F1 (traditionally a green wire) or F2 (traditionally violet), the return, also called +Common or Lamp Common, should be made via a wire carefully soldered to the Common (or blue) pin indicated as shown in Figure1. 3. To use a function output with an inductive (coil) type load, you must install a kick-back suppression diode across the connections. If controlling a coil type load, such as an electromechanical relay or motor, shutting the device off can cause an inductive kick-back ...

At the factory, your DS64 was set to control solenoid type turnout machines that use a single pulse output for operation. If you are using solenoid type turnouts, you can install the DS64 “out of the box.”  If you have reconfigured your DS64 for stall motor type turnouts, the DS64 can be reconfigured back to solenoid type turnout motors.1. Connect the DS64’s ‘TRKA’ and ‘TRKB’ terminals to your track. No turnouts should be connected to the DS64 at this time.2. On the DS64 press and hold the OPS button down for about 3 seconds until the red OPS LED and ...

  Q:  How can I write and read the Configuration Variables of Mobile Decoder on the mainline using the DT40x Throttle? A:  Operations Mode Programming, also known as Ops Mode, lets you program a locomotive decoder's CVs while it is on the main line. With the addition of transponding in Ops Mode, you can write and read back CVs in DCC locomotives equipped with most modern decoders while they are on the mainline. Some older decoders before Extended Packet Format was used are not able to do this.For example: A typical use for Ops mode programming would be to adjust an engines ...

Fortunately, most DCC railroad wiring is very simple and easy to install. One critical point for any DCC system is power consumption, how much power an individual Booster is able to deliver. The available power is measured in terms of Amperes or Amps. The higher the Amp rating, the more power is available to run your layout.Amps have often been compared to water pressure in a pipe. When the pressure is low, turning on one faucet will draw from that water pressure. As more faucets are opened, the water flow from each faucet drops. One solution is to turn off ...

The Trix GG-1 is a fine die cast locomotive model which is equipped with a sound decoder. As produced by the Trix factory in Germany, the sound functions are: F0 Normal headlights F1 Bright headlights F2 Cab lights F3 Sound of main relay F4 Low speed switching range (switching acceleration / braking delay off) F5 Bell F6 Horn, continuous blast F7 Sound of pantograph being raised and making contact with the wire F8 Sound of blower motor F9 Sound of switching relays F10 Sound of cab radio F11 Sound of couplers F12 Sound of clickety clack railroad track Digitrax operators ...

The DS54 is a powerful stationary decoder, which can be used to control devices in several different ways. Within the DS54 electronics are four independent sections. Within each section are three independent elements: Switch_, Aux_ and Output_. Each element can act independently or in conjunction with one or more elements within that independent section. (Note: The Switch_ element can be accessed from the input connector and the Output connector of the respective section.) Each of these elements can perform any one of several different actions. The actions are determined by two variables: trigger and task. The relationship of the Trigger ...

I am building a layout that will have two completely separated track plans; not connected with each other by any track. I am running one layout with a Super Chief that has one AR1 reversing controller.  I would like to run the second layout with the same throttle. It will have a reversing loop, as well as a turntable.  I have thought that I could run the second layout with a booster and a couple of AR1s or PM42.My questions is, will I have any problems with the reversing loops, especially if one on each layout is triggered at nearly ...

Dispatching is a special feature incorporated in the LocoNet language to meet the needs of operators that wish to enforce a strict discipline in how operators gain access to locomotives during an operating session. Dispatching also lets you run consists with basic throttles that can't set up their own consists and run four digit addresses on basic throttles that only have two digit capability. It lets you have newcomers run trains on the layout without giving them access to the entire operation. When you dispatch a locomotive address or consist to your LocoNet system, you make it available to be ...

  Setting up DS54 for Exact Turnout Reporting The creation of a feedback circuit for exact turnout reporting is simple. Connect a normally open set of contacts attached to the switch machine, a normally open set of contacts of a micro switch monitoring the throw arm, or a normally set of contacts of a relay monitoring the switch machine power to the common and switch input of the DS54 input connector. When the turnout is closed these contacts must be closed. Connect a normally open set of contacts attached to the switch machine, a normally open set of contacts of a ...

The slip switch is a track element that has both a crossing at grade and also a set of movable points which allow trains to both cross another track and also change track.  The Crossing The crossing allows tracks to cross each other at grade.  The Slip SwitchThe more complex slip switch allows trains to both cross and to change tracks: In the schematic below, you will note that the slip switch is more compact than ordinary turnouts.  As a result, they are often found in high track density areas such as passenger terminals, where space is at a premium. ...

The factory setting for Op#1 for all DT300 throttles is Op#1=x01. This option controls Tracking, Fast Clock Display, Key/Knob Clicks and Stop, local/global.Ballistic or Straight Line TrackingWith ballistic tracking, the faster you rotate the throttle knob, the faster the data changes in the throttle. When ballistic tracking is enabled so are typematic keys. With typematic keys, when you press and hold the Y/+ or N/- keys, the values will continue to increase or decrease without having to do a separate key press for each increment. Your DT300 was shipped with ballistic tracking as the factory default setting.With straight line tracking ...

Your Super Empire Builder Starter Set contains: The DB150, which is the system’s DCC command station. It generates the DCC signals that control decoders and other devices on your layout. The DB150 is also a DCC booster. Boosters receive DCC signals from the command station, amplify them and put them on the track along with the power from the transformer to run the locomotives. You can have several boosters on your layout to provide additional power to run more locos. Depending upon the set, there is either a DT402 or DT402D (duplex radio throttle), which is the DCC throttle that ...

Digitrax's “safety selection” is an important operational safety feature. Digitrax chose not to allow one way address selection to prevent multiple operators from being able to select and send commands to the same addresses at the same time. Having multiple operators sending commands to the same address can result in serious problems in an operating session because locos can appear to be out of control. Simplex radio throttles like the DT402/R, DT400/R, DT300/R, UT4/R and similar throttles operate as one-way (simplex) infrared or radio transmitters. The DT402, DT400/R, DT300/R, UT4/R must be plugged into LocoNet to select an available locomotive address to run on ...

Bring Your Locomotive to a Compete Stop Turn the Throttle Knob that the loco address is selected on counterclockwise until the speed display shows 00 and the loco stops moving. This lets you slow down your loco and stop it in a prototypical manner.If you have set up deceleration for the loco and you move the throttle knob to 0% speed, your loco will slow down and come to a stop at the programmed deceleration CV value.   We strongly recommend that you run your locos with the factory default of no deceleration until you are familiar with your system. If ...

At the factory, your DS64 was set to control solenoid type turnout machines that use a single pulse output for operation. If you are using slow motion turnout machines, like the Tortoise or Switchmaster, that need a static type output to operate, you’ll need to reconfigure the DS64’s outputs before hooking up your turnouts.To set up your DS64 to operate stall motor type turnouts:1. Connect the DS64’s ‘TRKA’ and ‘TRKB’ terminals to your track. No turnouts should be connected to the DS64 at this time.2. On the DS64 press and hold the OPS button down for about 3 seconds until ...

1. Carefully remove the locomotive’s shell from the frame. Notice the orientation of the shell for reinstallation. 2. Carefully remove the motor springs with tweezers. Store these springs in a safe place for later re-use. 3. Slide the factory light board forward to release it from under the clips on the locomotive frame. Be careful not to distort the frame clips as you slide and lift the light board off the frame. 4. Take the DZ123M0 decoder (noting the correct orientation of the frame pads) and slide underneath frame clips as indicated in the Figure 3. You will need to ...

These simple instructions will help you get up and running quickly. A full description of all controls and technical reference information are included later in this knowledge base. This section assumes that you are using a new set straight out of the box.1. Hook up the wires from the track to the RAIL A & RAIL B terminals on the DCS50. Insert the wire from one rail of the track into the RAIL A terminal on the back of the DCS50. Insert the wire from the other rail of the track into the RAIL B terminal. Turn the screw counter ...

  Zephyr Xtra Super Empire Builder Xtra  Super Chief Xtra Command Station DCS51 DB150 DCS100 Current Rating 3.0 Amps 5 Amps 5 Amps or 8 Amps Throttle DCS51 DT402 DT402 Throttle Controls Single Knob, Direction Switch Dual click encoder throttles Dual click encoder throttles Function Control F0-F28 F0-F28 F0-F28 Keypad Full Numeric Keypad Full Numeric Keypad Full Numeric Keypad Display Large LED Multi-line Backlit LCD Multi-line Backlit LCD Throttle Capacity 20 22 120 Loco Capacity 20 22 120 Loco Address Range 00-9000+ 00-9000+ 00-9000+ Stationary Address Range 01-999 00-999 00-999 Turnout Position Reporting No Yes, last command sent Yes + actual ...

If you have more than four turnouts, you will need to program the addresses.The DS64 has 4 Output pairs labeled 1R & 1G, 2R & 2G, 3R & 3G, and 4R & 4G.  The DS64 is shipped from the factory with these outputs programmed as Switch Addresses 01, 02, 03, and 04 respectively. You can set the Switch Address of each of these four Outputs to any value from 01 - 2048.NOTE:  During this procedure the DS64 must be connected to an active LocoNet with an active command station.1. On the DS64’s control panel, press and hold the ID button ...

Loco is running fine, then suddenly slows down, stops for a few moments, then starts up again to its original speed. This happens repeatedly and randomly (not at the same locations). Wheels, track are clean, doesn't seem to be a problem with other locos. Running HO using the Zephyr with Digitrax decoders. You did the right thing to make sure that the track and wheels are clean; that is one of the most common sources of problems with model trains, DCC or otherwise. What is probably happening is that the locomotive has been selected by two throttles. You are operating ...

The DCS240 offers 400 locomotive slots and can support up to 400 throttles.  These slots can be broken down in to standard slots and expanded slots.  There are 120 standard slots in the DCS240, these slots are accessible using any Digitrax throttle.  There are an additional 280 expanded slots available to DT402 R2 (tethered and Duplex) and later throttles.  The DCS240 identifies the throttle type being used and assigns and adjusts the slots accordingly.  Expanded capability throttles are given the Expanded slots first, leaving the standard slots available for legacy throttles.  All this is done in the background and will ...

Programming On The Mainline: Operations Mode ProgrammingOperations Mode Programming [Ops Mode] lets you program CVs in DCC locomotives equipped with Extended Packet Format decoders while they are on the mainline.  This is handy for situations where you want to make an adjustment to a specific locomotive while it is in service.  There are also situations where mobile decoders from other manufacturers can only be programmed in this manner. A typical use for Ops mode programming would be to change the acceleration rate (CV03) or the deceleration rate (CV04) of your locomotives to simulate the weight and braking capability of the ...

CV133 and CV134 work together to control chuff timing. CV133 and CV134 can be adjusted to create the desired chuff rate in your locomotive, or you can configure your sound decoder with CV133 and CV134 to use an external cam to create chuffing sounds. CV133 Steam Chuff/CAM configurations: CV 133 set to a value between 1-127 determines the driver size in inches. (Default Value = 63) CV134 Steam gear ratio trim CV 134 set to a value of 32=100% ratio. Setting CV133's value from 1-127, puts the sound decoder into 'Autochuff' mode. Autochuff mode tells the decoder to simulate driver ...

Digitgrax refers to the throttle knob on the left side as the L Throttle and the throttle knob on the right side as the R Throttle. This corresponds to the L & R that appears on the throttle. The throttle knobs on the DT400 use “encoders.” They give very smooth, fine speed control. In 128 speed step mode it takes four complete rotations of the knob to go from stop to full speed. When you select a locomotive that is already moving on either throttle knob, that throttle will continue to run the locomotive at the same speed and in the ...

1. Before using your TL1, set its address. This may or may not be the same address as a mobile decoder already installed in the loco or car depending on how you are planning to use the TL1. In the case of TL1s being used as a stand alone transponder or as a function decoder, choose an address that is not associated with another mobile decoder address in use on the layout.2. Connect the RED & BLACK wires of the TL1 to a service mode DCC programmer and program the TL1's address as you would any mobile decoder address.Follow the ...

Decoder Installation instructions?? is this included in the PDF for this decoder or is it a stand alone decoder installation app note?  Z.1. Carefully remove the locomotive’s shell from the frame. 2. Carefully remove the plastic plug that retains the brass motor clips and bend the brass motor clips up and away from the circuit board. 3. Slide the circuit board forward to release it from the clip on the locomotive frame and lift the board off the frame. 4. Gently lift up (about 3 or 4 mm) the brass pickup rail from one side of the locomotive, being careful ...

1. Carefully remove the locomotive's shell from the frame. Notice the orientation of the shell for reinstallation. 2. Carefully remove the plastic light shroud by gently prying up the tabs on either side of the frame and lifting the plastic piece off the frame. 3. Slide the factory light board forward to release it from under the clips on the locomotive frame. Be careful not to distort the frame clips as you slide and lift the light board off the frame. 4. Place the small piece of kapton tape provided with the decoder on the loco frame, wrapping it around ...

How To Set Up Routes Using Your DS64NOTE:  During this procedure the DS64 must be connected to an active LocoNet with an active command station.1. Press and hold down the STAT button on your DS64 until the green LED begins to blink quickly. You are now ready to set up a Route.2. To program the DS64 Route Number, use your DCC throttle in Switch mode to select a Switch Address from 1 through 8 and issue a Closed or Thrown command. This lets the DS64 know which of the 8 available routes you are setting up. This is NOT the ...

Instructions below are for both DCS100 & DCS200 (DCS200 omitted in text for clarity).1. Refer to the DCS100 Option Switch Table to decide which option switches you want to change. Also note that there are special instructions for OpSw's 36, 37, 38, & 39. 2. Move the MODE toggle switch on the front of the DCS100 into the "OP" position . The LocoNet Railsync will go inactive & all other boosters plugged in to LocoNet, including the one that is built into the DCS100, will shut down. 3. Disconnect LocoNet from the DCS100 you are configuring. 4. Connect your DT300 ...

Note:  These instructions are the same for DCS100 & DCS200 (DCS200 omitted for clarity).1. Refer to the DCS100 Option Switch Table to decide which option switches you want to change. Also note that there are special instructions for OpSw's 36, 37, 38, & 39. 2. Move the MODE toggle switch on the front of the DCS100 into the "OP" position . The LocoNet Railsync will go inactive & all other boosters plugged in to LocoNet, including the one that is built into the DCS100, will shut down. 3. Disconnect LocoNet from the DCS100 you are configuring. 4. Connect your DT400 ...

This article courtesy of Ross Webster, which dates from an earlier era before Bachmann made accommodations for DCC installs:There may be others ways do to this conversion, but this is the way I found using the Digitrax DG380 (any DG wired decoder can be used for this installation) DUE TO SOME OF THE FRAGILE ITEMS ON THE SHAY I WORKED ON A FOAM PAD SO THERE WAS NO DAMAGE TO ANY OF THE SMALL PARTS.I first tested the electrical items and made the following determinations.Free running for the two trucks was .8 amps, total. Stall, was 4.6 amps total for both trucks. Smoke ...

SE8C - Default Switch Address Range Usage For Board IDs 01-36  Board ID(Press ID Button, set Sw# for Board ID number) Slow Motion Turnout Machine Switch Address Range8 Per SE8C Signal ControlSwitch Address Range 4 Aspects Per Head64 Per SE8C Signal ControlSwitch Address Range2 Aspects Per Head   32 Per SE8C 01 (factory setting) Sw01-Sw08 Sw257-Sw320 Sw257-Sw288 02 Sw09-Sw16 Sw321-Sw384 Sw289-Sw320 03 Sw17-Sw24 Sw385-Sw448 Sw321-Sw352 04 Sw25-Sw32 Sw449-Sw512 Sw353-Sw384 05 Sw33-Sw40 Sw513-Sw576 Sw385-Sw416 06 Sw41-Sw48 Sw577-Sw640 Sw417-Sw448 07 Sw49-Sw56 Sw641-Sw704 Sw449-Sw480 08 Sw57-Sw64 Sw705-Sw768 Sw481-Sw512 09 Sw65-Sw72 Sw769-Sw832 Sw513-Sw544 10 Sw73-Sw80 Sw833-Sw896 Sw545-Sw576 11 Sw81-Sw88 Sw897-Sw960 Sw577-Sw608 12 Sw89-Sw96 Sw961-Sw1024* Sw609-Sw640 ...

How Many UR90 Infrared receivers will I need?One UR90 should provide complete coverage if your room is typical, with a hard surface floor and finished walls and ceiling. However, several things can cause the need for additional UR90s, such as: larger room, odd shaped room, acoustical ceiling, carpeted floors, or book shelves or other things on the walls that can interfere with the infrared signal. How many more you'll need depends on how many of these "impediments" are in your layout room. This Infrared signal should be considered to be line-of-sight, but the IR signal does reflect off of other objects, thus the concern ...

DN163A0 is a board replacement decoder for Atlas N-Scale GP40-2, GP38 U25B, SD35, Trainmaster, B23-7 and several others. Shown here is an installation in a GP40-2. 1. Carefully remove the locomotive’s shell from the frame. Notice the orientation of the light board inside so that you can install the decoder in the same orientation. 2. Carefully remove the plastic light shroud at the front of the loco and loosen the frame screws enough to allow the removal of the light board. Lift the board out of the frame. 3. Install the decoder, square CPU to the top, between the frame ...

  Can I add Radio and IR to my Zephyr Xtra?Yes.Adding radio and/or IR to Zephyr and Zephyr Xtra is the same as adding it to any other existing Digitrax layout or Digitrax Starter Set. Digitrax offers InfraRed, Duplex Radio and Simplex Radio systems for wireless operation.  Any combination of these wireless methods can be used on the same layout at the same time.Infra Red Wireless OperationAll current Digitrax throttles are Infrared capable (InfraReady) in that they come from the factory equipped with the IR emitters required to send IR information to LocoNet.  To use this functionality, you only need to ...

Background The world is filled with places like Nemo Junction, a crossing between two railroads which is protected by a signal interlocking plant that also serves as an interchange point between these railroads. Cars destined for places to and from another railroad are exchanged at places like these. The interchange has been described as being the ideal model railroad industry because any type of car can be found there, heading toward places that are not on the model railroad itself. Nemo Junction is based upon a real place, a location in Illinois identified on the timetable of the Santa Fe ...

Can I add Radio and IR to my Big Boy?Yes.Adding radio and/or IR to Big Boy is the same as adding it to any other existing Digitrax layout or Digitrax Starter Set. Digitrax offers InfraRed, Duplex Radio and Simplex Radio systems for wireless operation. Any combination of these wireless methods can be used on the same layout at the same time.Infra Red Wireless OperationAll current Digitrax throttles are Infrared capable (InfraReady) in that they come from the factory equipped with the IR emitters required to send IR information to LocoNet. To use this functionality, you only need to add one ...

Note: These instructions cover the hardwired installation of any Digitrax decoder with wires into a Kato GP35 H0 Diesel. Currently, the recommended decoder for current production GP35's from Kato are the DH163K0 board replacement decoder.  Using the board replacement decoders are much simpler and cleaner installation than the one described here.Tools Needed for Decoder InstallationYou'll need a few simple tools:1. A soldering iron, preferably temperature controlled.2. Solder3. Screwdriver4. Small diagonal cutters for cutting and stripping small wire5. TweezersMotor Isolation for Kato GP35Carefully remove the loco's shell and weight.To isolate the motor, disconnect the brass strips (motor brushes) from the track pick up ...

Before sending your Digitrax mobile decoder in for repair try these troubleshooting steps to see if you can “bring it back from the dead” and save a trip to the shop and possible repair charge. As with troubleshooting anything, begin checking what could be wrong methodically. Write down your observations as you work through the list to solve the problem.The most common "repair" problem we see in our repair department is decoders that are programmed incorrectly.Many decoders we receive for repair have been programmed with CV values that cause them to seem to have a problem. The good news-bad news ...

Program the TF4's Address & Function Outputs1. Before using your TF4, set its address. This may or may not be the same address as a mobile decoder already installed in the loco or car depending on how you are planning to use the TF4. In the case of TF4's being used as a stand alone transponder or as a function decoder, choose an address that is not the same as another mobile decoder address in use on the layout.2. Connect the RED & BLACK wires of the TF4 to a service mode DCC programmer and program the TF4's address as ...

  Digitrax UT4D Throttle Operating Instructions by Dan Bourque   v1.0 Selecting a locomotive or consist 1.         Dial the 4-digit locomotive address into the “LOCO ADDRESS” dials             - For a consist, the address will normally be the lead locomotive             - For a 3-digit locomotive number, use “0” for the first digit 2.         Press the “SEL” key, the ST light on the throttle should flash green 3.         Move the direction selector on the throttle to either “R” or “F” 4.         Move the speed knob until train moves 5.         For headlight, press the “F0” key (“F3” will ...

This installation covers how to install a Digitrax decoder with wires in any Athearn HO locomotive.  Use either our DH123 (headlight functions only) or DH163 (headlights plus additional functions) for this installation.*** Note: This installation is based on installing a Digitrax wired decoder in an Athearn Dash 9-44CW. The process is similar for any Digitrax mobile decoder with wires. The instructions are also easily applicable for any Athearn locomotive.These instructions assume that you have already run the loco and have established that it is working properly before beginning installation. Remember, installing a decoder in a locomotive will not improve its ...

Application Note: Con-Cor HO-Scale Zephyr steps needed for the DZ125PS decoder installation Step 1: Carefully remove the body from the frame. There are four clips along each side of the body. (See red arrows) We have found if you start at the rear of the body with a small flathead screwdriver and carefully pry the body outward to remove the back clip, you can move the screwdriver forward to release the others. Once the body is completely removed, carefully lift the light board from its holders on the bulkheads. (See blue arrows) Be very careful as the pins that hold ...

When the PR3 is powered up and properly operating, the green ‘USB’ light on the PR3’s control panel will be blinking steadily and the red ‘STAT’ will be blinking momentarily. Make sure the supplied SoundLoader Installation CD is inserted in your PC's CD player. Plug the PR3’s USB cable into a vacant USB socket on your PC . Depending on which operating system you have on your PC, you will next see a dialog box appear on your PC’s monitor. The procedure we document in the following pages is for Windows XP, if you have Windows Vista®, Windows 2000®, or ...

The 5 Amp DCS100 and the 8 Amp DCS200 share the same front panel layout. There is a variety of indicators, switches and connectors: Power Input The two POWER IN terminals on all Digitrax boosters & command stations are the power input connections. Power On Indicator This green LED indicates that the power to the DCS100 is on. Ground Terminal The terminal marked ground provides electrical safety features and an RF ground reference for minimum radiated noise. This should be the ONLY point of any DCS100 installation that is connected to the AC safety ground pin provided on most 3 ...

As originally conceived, the Texas & Southwestern was set up with a very simple DCC system. The railroad uses a DCS50 Zephyr as its command station and booster. The Zephyr is connected to a central power bus, and all tracks, stationary turnout decoders and the automated reverse loop unit are connected to it. Likewise, the LocoNet connections are a series of simple cable connections starting at the Zephyr and ending at the last Universal Panel. The T&SW works well with this arrangement, but there are additional devices that will enhance the operation of this railroad. Digitrax PM42 Power Management System ...

DN163K0b Installation Instructions for Kato F-3, F-71. Carefully remove the locomotive’s shell from the frame. 2. Remove the black plastic cab seat panel by gently pressing in at the sides. 3. Carefully remove the plastic plug that retains the brass motor clips and bend the brass motor clips up and away from the circuit board. 4. Slide the circuit board forward to release it from the clip on the locomotive frame and lift the board off the frame. 5. Remove the brass pickup rail from one side of the locomotive, being careful not to bend it. Wrap a small piece ...

  CV29 is assigned a single value which chooses a combination of specific effects: 1. Speed step control. 2. Speed table On or Off. 3. Analog mode conversion On or Off. 4. Normal Direction of Travel (NDOT). 5. 2 digit addressing or 4 digit addressing. 2-digit or 4-digit Addressing The decoder's address is the identification number programmed into specific decoder that lets that decoder recognize commands sent to it by the command station. Once you program the decoder's address, it will be remembered in the decoder until you re-program it. All Digitrax current production decoders can be set up with ...

  Digitrax DCS50 (Zephyr) Operating Instructions by Dan Bourque   v1.0 Selecting a locomotive or consist 1.         Press the “LOCO” key (display will flash) 2.         Enter the address of the locomotive or consist - For a consist, the address will normally be the lead locomotive             - For a 3-digit locomotive number, use “0” for the first digit 3.         Press the “LOCO” key again (display will stop blinking) 4.         Move the direction selector on the throttle to either “Forward” or “Reverse” 5.         Move the speed knob until train moves   Dispatching (releasing) a locomotive or consist 1.         ...

Simplex Radio Coverage One UR91 should provide full coverage for a typical model railroad under most circumstances. Simplex Radio reception is affected by metal objects between the throttle and UR91 simplex receiver, or large metal objects adjacent to the receiver; a furnace is one example of such an object. Such objects cause a second reflected signal, impairing the radio throttle signal's ability to reach the UR91. In this case, the receiver gets the signal directly from the throttle, then another signal right on top of it from the reflection. Moving the UR91 to another location may solve this problem, or you ...

Fred Miller has been an invaluable resource for information about Digitrax sound. Here are some of his thoughts about the sound project files, from the Yahoo Digitrax Sound discussion group: There seems to be confusion over what is a SPJ.  Yahoo closed down all Groups in 2019.  The information is still relevant.   Fred Miller has also written a program called SPJHelper which easily lets you create/modifiy Sound Projects. There are additional Sound Projects on Groups.io - Look for AnPRR owned by John McMasters.  He creates many SPJ Sound Projects.   It is not surprising since it is a very ...

Basic tools for soldering: a soldering iron, solder, wire cutters, wire strippers, tweezers, heat sinks, etc. This photo does not show an example of desoldering braid which is useful for touch ups and removing mistakes. If you are building a model railroad, you will need to learn to solder. This skill is used for attaching track feeds to the rails to provide power to the layout, for installing decoders in locomotives, for building locomotives and signals and much more. Manufacturers minimize the need to solder where ever possible by using screw connectors, board repalcement decoders and plugs for installing decoders. ...

A speed table is a list of numbers, one number for each speed step. Many operators customize their locomotives by adjusting the CV's for Vstart (02), Vmid (06) and Vmax (05) to set the throttle response characteristics for each locomotive. This is known as a three-step speed table It is also possible to create a more complex speed table, either with 14 or 28 steps that specify the exact percentage of full power sent to the motor when the throttle is set to that speed. Speed tables can be set up for 14 or 28 speed steps, but not for ...

  I have a 14x24 foot room with a shelf layout on two levels. 1st level is about 24 inches with two main lines and some industries, a moderate freight yard, moderate intermodal facility and passenger station. The second level is 18 inches and will contain one and two main lines with mostly industries. This would qualify as a "medium to large" model railroad. I would like to have 1-5 operators with 2-10 trains running at one time as permitting. At least four Universal Panels would give all operators full access to LocoNet as necessary. At least one UP each ...

Train detection and the related signaling can be a complicated affair. However, it becomes easier if you analyze things and break them down into their component blocks. The whole idea is to protect trains from each other, regulating their movements by the use of signals which tell train crews what to do or what to expect. Train detection identifies which segments of track are occupied by a train. For the real railroads, track detection sections can be very short (such as at track junctions) or very long (such as in rural environments). Train speed and frequency of trains are also ...

This section discusses the installation of the physical wiring of the Texas & Southwestern. Underneath the completed Texas & Southwestern are various wires and cables which allow you to operate your railroad. Initially, seeing all these wires can be intimidating, but as you will note, they have been grouped and bundled so that identifying the individual wires is easy. There are two groups of wires under the railroad; one group, the power bus, delivers power to the tracks and to the stationary decoders that operate the track switches. The other group of wires is the black cable for LocoNet and ...

Digitrax SoundFX Decoder Troubleshooting Guide This troubleshooting guide assumes that you are working with an operating Digitrax system that is able to run trains and that the locomotive you are troubleshooting is operational and has a Digitrax sound decoder and speaker installed correctly.  If there is no sound, first make sure the decoder is not muted: Press the Function 8 (F8) key, and make sure F8 is OFF.  Function 8 is used to toggle between sound active (F8 OFF) and mute (F8 ON). If there is no sound and the locomotive won’t move when the address is selected on your ...

Overview:To reset locomotive electronics to factory defaults the user must set CV08 to a value of 08. It is recommended that this procedure be performed on the dedicated service mode programming track using direct mode programming.* Note: This is the only programming procedure that we recommend using the programming track for. All other programming should be performed on the main track using Operations mode programming.Procedure:1. Place the DCC equipped locomotive on a dedicated service-mode programming track.* Note: The rails of this track should be connected to the PROG A & PROG B outputs on the DCS100 command station.2. Set the ...

To go to the Edit Routes (Er) mode using DT400/DT402/DT500 series, you must pass through the clock editor: 1. Start in Fn mode. Press the EDIT Key to enter Edit Mode. Press the EDIT Key again to enter Ec (Edit Clock) mode. Press the EDIT Key again to enter EF (Edit Fast Rate) mode. Press the EDIT Key again to enter EA (Edit Alarm) mode. Press the EDIT Key again to enter Er (Edit Routes) mode. The DT400's display will show the following screen when you enter the Edit Routes mode. This display shows: Er (Edit Routes) in the Mode ...

My sound decoder has a capacitor, why do I need a PX112? The capacitor that came with your Digitrax sound decoder is designed to hold up sound operation in the presence of brief power interruptions.  It is not designed to keep the locomotive’s motor and lights running.  Our ears are very sensitive to sound interruptions so, the capacitor on your sound decoder will prevent most of these drop outs on average quality track.  Most people don’t even notice the small pauses in a locomotive’s movement and the small flashes of the lights when the track power is interrupted.  If you ...

  Option switches are used to change the operation of the DB150. Option Switch # Effect on system when Option Switch “c” closed Default OpSw 02 Booster Only override t OpSw 03 DB150’s booster is auto reversing t OpSw 05 Default closed for command station –DO NOT CHANGE- c OpSw 13 Loco purge time extended from 200 seconds to 600 seconds t OpSw 14 Loco purging is disabled t OpSw 15 Purging will force loco to Stop or 0 speed t OpSw 17 Automatic advanced decoder assisted [FX] consists are disabled c OpSw 18 Extend the DB150 booster short circuit ...

  Digitrax DCS51 (Zephyr Xtra) Operating Instructions by Dan Bourque v1.0 Selecting a locomotive or consist 1.         Press the “LOCO” key (display will flash) 2.         Enter the address of the locomotive or consist             - For a consist, the address will normally be the lead locomotive             - For a 3-digit locomotive number, use “0” for the first digit 3.         Press the “LOCO” key again (display will stop blinking) 4.         Move the direction selector on the throttle to either “Forward” or “Reverse” 5.         Move the speed knob until train moves   Dispatching (releasing) a locomotive or consist ...

 OpSw Setup Enter OpSw mode by pressing the OpSw button.  The OPS and ID light will flash alternating RED and GREEN. Use your throttle in SWITCH mode to set switches to thrown or closed to match your desired OpSw setting.  There are currently no published OpSws for the BXPA1. If you erroneously set an OpSw, the BXPA1 can be factory reset by setting OpSw40 = Closed Trip Speed Pot The Trip Speed Pot can be adjusted to set the speed at which auto reversing and power management is resolved.  Turning the pot clockwise will make the speed slower and turning ...

DT602 Throttle Option Settings Throttle ID# Option Name Factory State ID01 Ballistic Knobs With Ballistic tracking, the faster you increase or decrease the throttle knob the faster the data changes in the throttle. When Off the speed step increase is per encoder notch. on ID02 Key clicks Off disables clicks for key press and encoder changes. on ID03 Duplex RF allow Off will turn off Duplex Radio capability. on ID04 IR allow Off will turn off IR capability. on ID05 Fast Clock show On will show fast clock. off ID06 24Hr Clock mode On changes the clock mode from 12Hr ...

UT6 Throttle Option Settings Throttle ID# Option Name Factory State ID01 Ballistic Knobs With Ballistic tracking, the faster you increase or decrease the throttle knob the faster the data changes in the throttle. When Off the speed step increase is per encoder notch. on ID02 Key clicks Off disables clicks for key press and encoder changes on ID03 Duplex RF allow Off will disable Duplex Radio capability. on ID04 IR allow Off will disable IR capability. on ID05 Fast Clock show On will show fast clock. off ID06 24Hr Clock mode On changes the clock mode from 12Hr to 24Hr. ...

Clarifications of UR93 and DT602D/UT6D Duplex RF and network performance: The new UR93 and DT602D and UT6D throttles employ the new Digitrax designed and manufactured RF28 Modular Certified 2.4GHz transceiver module. The RF28 is configured to interoperate with existing Digitrax Duplex UR92 LocoNet access points and e.g. DT500D and UT4D throttles worldwide. All Duplex units employ IEEE 802.15.4 PHY/MAC compatible devices using 2.4GHz Direct Sequence Spread- Spectrum (DSSS) modulation. The RF28 was developed for: a)  Smaller size. The venerable RF24 could not fit in the small UT6D, and this case was designed in 2017, so a new smaller Duplex support ...

There was a time when every mobile decoder installation was a custom installation. In those early days, we were just feeling our way along, trying to find ways to make the existing supply of decoders fit into locomotives which had been designed in a different era. Fortunately, things have changed along the way, and in many cases, the Digitrax Decoder Selection Guide will list your locomotive. But many locomotives are not listed because they are too new or are too generic for a special listing. So, from time to time, you will have to "wing it" just a bit to ...

DS64 is set up by setting Option Switches (OpSw)This is how to set option switches on the DS64:1. Begin with your DS64 powered up. Turnouts can be either connected or not.2. On the DS64 press and hold the OPS button down for about 3 seconds until the red OPS LED and green ID LED begin to blink alternately. This indicates that the DS64 is ready to change the option switches.3. Using your DCC throttle, select the Switch Address that corresponds to the OpSw number and send the Closed or Thrown command corresponding to the setting you have chosen. Refer to ...

LNWI Advanced Options Status LEDs: The LNWI has two status LEDS Green ID indicator and a Red OPS indicator.  The state of these indicators can be interpreted to provide status information and also some useful diagnostic insights. Table 1: Status LEDs LED Status Indicates Green ID indicator mostly lit, winking OFF every 3 seconds LNWI is powered and connected to LocoNet Green ID indicator mostly off, blinking ON every 3 seconds LNWI is powered and LocoNet is not connected or sleeping Green ID indicator winks OFF LNWI received a good LocoNet Message Red OPS indicator blinks ON LNWI received a ...

CV29 controls many aspects of the locomotive, including its decoder address (including two or four digit address) , normal direction of travel (NDOT), whether the locomotive opperates at 28 speed steps or 128 and others. Some older Digitrax throttles use hexadecimal notation for programming.  This article is presented for the benefit of those who may still be using these throttles.  CAUTION: if you are NOT using a DT100 or DT200, please disregard this article to avoid confusion.The Addition Method The table below shows each switch and its value if it is on or off. Notice that if the switch is ...

When you are using a throttle to control a locomotive, you will notice that as you increase and decrease the speed, the loco responds to the change in throttle settings according to the relationship between motor voltage applied and the throttle setting.  This is called the throttle response curve.  Decoders are shipped from the factory with a linear throttle response curve.  This means that as you increase the throttle setting from 0 to full speed, the loco will look like the default curve in this diagram.If you want to create a more realistic throttle response curve, you can set up ...