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KB516 Two Zephyrs

I have a large oval layout with a view divider down the middle. I have two Zephyr units, one on each side of the divided layout. I don't have separate power districts (do I need to?). Can I run both Zephyrs? What do you suggest as to wiring the two Zephyrs? The easiest thing would be to divide your railroad into halves, with one Zephyr located on each side of the view block. Both rails would be insulated at both intersection points with the viewblock. One Zephyr would be the command station while the other Zephyr would be used as ...

KB10 DT402 DigiGroup Set Up - Q & A

What is the meaning of the colored lines and bars which show up in the chart portion of the DigiGroupSetup v1.03 window after pressing the "Start Chan Scan" button? The graphics show the peak signal and average detected while you let the scan run. This may be useful in helping you setup your layout for best Duplex performance. What is the "Group ID" number which is shown in DigiGroupSetup v1.03? The Group ID is typically used in the train show environment, where there may be several wireless networks operating at the same time. The unique Group ID allows new operators ...

KB140 PM42 - Programming Op Switches Without a Digitrax Throttle

Is it possible to configure the PM42 for auto reversing without a Digitrax throttle? We're accustomed to working in the Digitrax operating environment, so our answer is theoretical at best. However, it would seem that any operating software with a LocoNet interface could be used to set the PM42 address, using the software as a throttle in this situation.

KB275 DT400 Problems with DCS100 and DB150

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 ...

KB148 Minitrix 6-Pin Socket

We have discovered during a conversion of an earlier Minitrix V60 diesel that the 6-pin socket is not always wired correctly for conversion to DCC. Apparently, earlier Minitrix locomotives equipped with this socket were wired for use with Selectrix decoders. You should examine the connections from the locomotive to the 6-pin plug prior to installing the DZ125IN.

KB533 BD4 - Connecting to a DS64

How do I connect a BD4 to a DS64? The BD4 is a block occupancy detection device designed as an add-on device that can take advantage of the LocoNet hosting capability of the DS64 stationary decoder. It is connected in this way: The installation of a BD4 is relatively simple. Looking at the BD4, you will find a 5-point terminal block on one end and two (LED1 and DS1) 10-pin (5x2) headers on the other. There are three termination areas: a) The 5-point terminal block (left) is for the interconnection between the rail power source and the rails. b) The ...

KB150 Turntable Control

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 ...

KB985 What is Digital Command Control?

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.

KB283 High Frequency Filters?

Q: I read in the February 2008 "Scale Rails" on page 11 that I need to add some "High Frequency Filter" gizmos on my layout to make my trains run properly. I have been using Digitrax equipment for 12 years, do I need to make these changes? A: We do not feel that this is necessary. With modern, well designed decoders, almost any combination of transmission-line ringing and other mismatch effects described in this article are completely filtered and ignored by the decoder. This is a superior solution rather than trying to design filters for unpredictable limiting cases of wiring ...

KB581 BD4 - Connecting to a DS54

  How do I connect the BD4 to the DS54? The BD4 is a block occupancy detection device designed as an add-on device that can take advantage of the LocoNet hosting capability of the DS54 stationary decoder. It is connected in this way: The installation of a BD4 is relatively simple. Looking at the BD4, you will find a 5-point terminal block on one end and two (LED1 and DS1) 10-pin (5x2) headers on the other. There are three termination areas: a) The 5-point terminal block (left) is for the interconnection between the rail power source and the rails. b) ...

KB554 Power supplies-Range of what works

  We need to re-write this to be general purpose describing how power supplies should be selected  -Z.Would a 12V, 500mA power supply work as a replacement for the 12V, 300mA power supply? Yes. It is much more power than the device needs, but it will work. The purpose of independent power for the UP5 is to serve as a “Battery Saver” for throttles connected to UP5.

KB559 Lenz & Atlas decoders show d-nd

Q:  My Atlas DCC N-Scale locomotives that are equipped with factory installed Lenz062xf, Lenz063xf or 'new' Atlas decoders will not program using the DCS50 in any mode, either on the OPS track or Program track. I know the system works because I can easily program every Digitrax decoder loco that I have, but if I put an Atlas DCC factory loco on the programming track I get the 'd nd' error code There are decod

KB817 Disclaimer

This needs to be somewhere on the KB launch page  Z Digitrax products are not intended for use by persons under the age of 14.   While every care has been taken to ensure the accuracy of this knowledge base, Digitrax cannot be held responsible for any errors or omissions.   The information contained in this knowledge base is, to the best of our knowledge, true and accurate at the time of publication and is solely for informational purposes.   All information on this site is intended to be accurate, complete and timely. In addition any information or advice given ...

KB437 Customizing the DT400 Option #6

Do Not Change This Value. Option #6 sets the throttle type. All DT400’s are throttle type x44. You should not change this value.

KB439 Customizing the DT400 Option #4

Option # 4 sets the throttle ID of your throttle. Each throttle in your LocoNet system can have its own unique ID to support advanced LocoNet functionality. Products that use this feature will usually require each throttle in your system to have a unique ID. We recommend changing this ID only when specifically directed to do so by the manufacturer of a LocoNet compatible product that requires unique throttle IDs for operation. You may use any ID in the range of values x00-x7F (hex) and you must be sure that every throttle in your system has a unique ID #.

KB440 Customizing the DT400 Option #3 - Tetherless Release

DT400/R’s are shipped from the factory with tetherless release disabled. This prevents you from accidentally touching the LOCO Key and entering address selection while you are running your throttle in tetherless mode. DT400 can be set up to allow locos to be released from the throttle when it is in tetherless mode (IR or radio) by setting DT400 Option #3 according to the following table. Op#3 Value (hex) Backlight Brightness Clock  Format Recall Stack Depth Tether- less Release x00 Off 12 hour format 4 No x01 Low intensity 12 hour fomat 4 No x02 Medium intensity 12 hour format 4 ...

KB441 Customizing the DT400 Option #3 - Recall Stack Depth

The DT400 recall feature can be configured to keep a list of the last 4, 8, or 16 addresses that were previously selected in the throttle. The number of locomotive addresses stored is determined by changing the values of Option 3 of the DT400; the default setting is 4. It is not possible to clear out the stored locomotive information held in the stack. Locomotives in the Recall Stack rotate out as newer locomotives are selected, usually on a FIFO (First In, First Out) basis, but there may be exceptions. For many users, searching the Recall Stack may complicate matters ...

KB186 Stationary or Under-layout Operation

The SFX004 can be used in a stand alone configuration as well. In these situations just connect pins 9 and 10 to the track and address the device normally.

KB443 Customizing the DT400 Option #3 - LCD Backlight Brightness Setting

The backlight intensity can be set for off, low, medium or high intensity. The brightness of the backlight affects battery life, the brighter the LCD, the shorter the battery life. When your DT400 is untethered from LocoNet, the backlight automatically reduces brightness by one setting to conserve battery power.

KB444 Customizing the DT400 Option #2 - Tetherless Operation Mode

Each DT400 can be set up with radio capability and/or infrared capability enabled, all tetherless operation disabled and power save enabled or disabled. DT400 is shipped with IR only enabled and DT400R is shipped with Radio & IR enabled

KB317 Function Remapping Trix GG-1

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 ...

KB446 Customizing the DT400 Option #1 - Local/Global Stop

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. ...

KB69 Nemo Junction - Connecting BD4 to the SE8C

BD4 Output Each BD4 is situated between the PM42 Power Manager and the railroad. The DCC signal passes from the DCS50 Zephyr, through the Power Manager, through the BD4 to the track to the locomotive. When a locomotive (or equipped car) is present in a track segment, the BD4 also sends out occupancy information, in two ways. Occupancy Information Output LED1 The LED1 10-pin header is for testing the status of power to the rails and block occupancy with the LED indicator which is included with the BD4. The LED1 can also be used for panel indicator lights using LED's. ...

KB524 Wiring lighting without burning out bulbs on the first try

Wiring lighting without burning out bulbs on the first try. Need some info on which bulbs and boards need drop resisters installed and why. The new DH165 series have eliminated the mystery since they work with either LED's or with conventional lamps without adding resistors.

KB463 Circulating Ground Loops and Magnetic Induction Ground Loops

Q:  What are circulating ground loops and magnetic induction loops?  What are their symptoms and how can I fix them?A:  Like a lot of things, when you get down to the details, there can be disagreement about certain matters.Consider that the Super Chief manual states:  "To minimize the possibility of radio interference, twist all conductors."  Yet, this database has an article that states to the contrary; please see the related article in question, which is linked below.  In this situation, it must be remembered that the original manual was written several years ago and the most recent update was in 2004 ...

KB592 Wiring a Very Large Layout

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 ...

KB215 One bulb, two levels of brightness?

In order to obtain different brightness levels of lighting, is it permissible to use two lighting function outputs, each with a different value resistors, to the negative lead of the same led or bulb? Yes you may do so. We recommend putting the resistor on the function side vs. the + common side.

KB216 PM42 - Board ID & Settings

When changing the board address of the PM42 to say Decimal 20, what is the switch number to put the PM42 section A into auto-reverse? The default is 6. To set Section A of a PM42 to auto-reverse, you set OPTION SWITCH 6 TO "c" no matter what the board address is.

KB473 Dividing the layout up into blocks

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 ...

KB90 Wire Bus Standards - Copper Tape?

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 ...

KB987 General Command System Troubleshooting and Tools

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 ...

KB442 Customizing the DT400 Option #3 - Fast Clock Format

The fast clock can be set up to run in 12 hour format or 24 hour format.

KB472 Layout Blocks - A Small Example

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 ...

KB357 Headlights - Lamps or LEDs

Needs a comprehensive answer.  There may be one somewhere else already.  Z.This is from the decoder manual and does not answer the question:A 12 or 14 Volt lamp run directly without resistors will be less sensitive to voltage fluctuations. For regular 12 to 16 Volt lamps that draw more than 50 mA when lit, we recommend that you put a 22 to 33 ohm 1/4 watt resistor in series with the lamp leads. This will ensure that the lamp "start-up currents" (up to 10 times normal current draw) do not overload the outputs.If you want, you can estimate things by ...

KB617 Am planning a 4 district layout with a Super Chief set. how to handle circuit breakers

Am planning a 4 district layout with a Super Chief set. Can I serve all 4 districts with it using circuit breakers for each district? If not what do I need?In this case, the PM42 quad power manager can be used to give you circuit breakers in each of the 4 sub-districts.

KB620 Signaling & Detection - Overview

The subject of railroad signaling is a fascinating one.  Signals provide a margin of safety and protect the train crews, freight and passengers on the railroad .  Grade crossing signals also protect the general public from collision with moving trains.  Signal operation relies upon three basic elements: Detection of trains   Operation of the signals   Operation Logic Signaling is a complicated topic, far beyond the scope of this knowledge base.  But Digitrax offers several items which will help you with creating a realistic signal environment. Detection determines the presence or absence of trains.  Both the BDL168 and BD4 will ...

KB445 Customizing the DT400 Option #2 - Throttle Default Decoder Operation

Each DT400 can be set up to operate new decoders selected by that DT400 as any decoder status code you choose. New decoders are defined as decoders that have not been selected in your system. Your DT400 is set to expect to operate mostly decoders that are 128 speed step capable, so when a new decoder is selected the DT400 defaults to that status code. If you operate mostly decoders that are only able to recognize 28 speed steps, you can change this setting.

KB241 4-digit Addressing Formula

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 ...

KB787 BT2 Overview-Legacy

The BT2 throttle was manufactured between 1995 and 1999.

KB984 What will DCC do for me and my railroad?

This needs to be beefed up or discarded  Z Simply put, DCC will let you "run your trains, not your track." DCC gives you the freedom to bring your railroad to life! With DCC you have truly prototypical operation at your fingertips.

KB118 PR3 - Connecting to UP5

Can the PR3 be connected to the "third" LocoNet port on the side of the UP5, or must it be connected to one of the ports on the rear of the UP5? PR3 probably cannot be connected to the side LocoNet jack of the UP5. The documentation for the UP5 includes this phrase: "There is an additional jack on the side of the UP5 that can be used for either an additional throttle or for a single LocoNet device that does not use Rail Sync."

KB376 Example Control Display

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 ...

KB532 How do I wire a double crossover?

Q:  How do I wire a double crossover? Each crossover results in a reversing loop. Should I use a PM42 or AR1? This is O scale (2 rail) if that would have any bearing on your answer. A:  Without a drawing to see how things are laid out, this can only be a guess, but a couple rules do apply. The reversing sections must be longer than the longest train. And there should be only one train in the reversing section at a time. It also seems to be a good idea to keep the reversing sections away from the ...

KB382 DN163K2 - Function Outputs

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 ...

KB383 DN163K0d Installation Instructions - Kato F40PH

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 ...