Digitrax Decoder Index

DZ121

DZ121Instructions Digitrax Decoder Manual

Tech Note DZ121 Programming Note Tech Note Easy DCC, MRC or Lenz compatibility on some DZ121s

Physical Size	0.36” x 0.575” x 0.16” 9.1mm x 14.6mm x 4.06mm		Current Rating		1.0/1.5 Amps
Interface	Decoder End	Wires			End/Plug
W	Wired	6.9”		175mm	Wires

# Functions	2	Function Current Rating	125mA	Function Type	CS
Prod Date	07-09-1999	Discontinued	07-01-2002	Replaced By	DZ143

CV#	Feature	Default	Range	Notes
2 Digit and 4 Digit Addressing
01	2 Digit Decoder Address	003/X03	001-127
17	4 Digit Address Hi Byte	000/X00	0128-9983	CV17 & 18 are used
18	4 Digit Address Lo Byte	000/X00	0128-9983	together
29	Configuration Register	006/x06	Table 29
Configuration Register
29	Configuration Register	006/x06	Table 29
	Speed Step Control	28/128	14 or 28/128
	Speed Table On/Off	Off	Speed Table On or Off
	Analog Mode Conversion On/Off	On	On or Off
	Normal Direction of Travel (NDOT)	Fwd	Fwd/Rev
	Address Selection, 2 or 4 digit	2 Digit	2 or 4 Digit
LocoMotion^TM
Acceleration & Deceleration
03	Acceleration Rate	000/x00	000/x00 to 031/x1F	128 Steps
04	Deceleration Rate	000/x00	000/x00 to 031/x1F	128 Steps
Three Step Speed Table-Start, Mid, Max Voltage
02	Start Voltage	000/x00	000/x00 to 255/xFF	128 Steps
05	Maximum Voltage	000/x00	000/x00 to 255/xFF	128 Steps 000/x00, 001/x01 & 255/xFF= max voltage at step 28
06	Mid Point Voltage	000/x00	000/x00 to 255/xFF	128 Steps 000/x00 & 001/x01= straight line curve
28 Step Speed Tables
65	Kick Start value	000/x00		128 Step Interpolated
66	Forward Trim	000/x00		128 Step Interpolated
67	First Speed Table Entry	000/x00		128 Step Interpolated
68-93	28 Step Speed Table Entries	000/x00		128 Step Interpolated
94	Maximum Speed Table Step	000/x00		128 Step Interpolated
95	Reverse Trim	000/x00		128 Step Interpolated
29	Configuration Register	006/x06	Table 29	Set to enable speed tables
Torque Compensation & Switching Speed
53	Not Available			Not Available
54	Torque Compensation Switching Speed			Not Available
Functions
13	DC Functions ON	000/x00	Table 13
Configurable Strobes
49	F0F,forward light effect	000/x00	Config Strobe Table
50	F0R, reverse light effect	000/x00	Config Strobe Table
61	Enable Configurable Strobe	000/x00	000/x00 off or 001/x01 on
Standard, FX & FX^3 Functions
49	F0F, forward light effect white			Not Available
50	F0R, reverse light effect yellow			Not Available
51	F1, Function 1 green			Not Available
52	F2, Function 2 violet			Not Available
53	F3, Function 3 brown			Not Available
54	F4, function 4 white/yellow			Not Available
115	F5, Function F5 white/green			Not Available
116	F6, Function F6 white/blue			Not Available
62	FX Rate and Keep alive adjust			Not Available
63	Ditch Light Blink hold time			Not Available
Directional Headlights, Transponding, Split Field Motor
61	Directional Headlight	000/x00	Dir or Non-Dir
	Transponding	Off	Off or On See Table 61
	Split Field Motor			Not available
Scaleable Speed Stabilization
55	Static Compensation