General features
  • Designed to run in analog only operation too
  • On the fly switching between digital and analog current
  • Direction remembered also in analog operation (bistable relay on board)
  • Address set by switches (just as Märklin decoders)
  • Adjustable starting voltage, acceleration and deceleration
  • 2 function outputs, direction dependent
  • 64 speed steps internally
  • Measures are 25,4 x 18,7 x 6,3 mm (L x W x H)
  • Comes with 2 cable sets, one with NEM plug

Electrical Data:

  • Motor output max. load: 1 A
  • Function output max. load: 200 mA
  • Total maximum output 1, 2 A
  • The function outputs are overload protected, the motor output not.
Factory default settings:
Address 72
Starting voltage 0
Acceleration delay 4
Deceleration 1

Address coding:

The loco address is set with  DIP switches. The address should be set before mounting the decoder.
The coding table is the same as with Märklin decoder. If you want to be lazy, you can download the switch.exe program from the Links & downloads page on this site. 

The Loco then needs current to save the setting, so place it on a powered track.

The lights (if installed on function outputs) should NOT blink quickly, since this indicates an illegal address. 

Further settings:

Following features can also be set with the DIP switches:

  • Starting voltage
  • Acceleration
  • Deceleration

The decoder must be unpowered (track must be unpowered, or lift the loco off the track) while selecting the feature you wish to program.

Feature programming:

Set DIP 7 and 8 to ON (= programming mode). Use DIP 5 and 6 to select what feature to program. Then use DIP 1-4 to set the desired value. 

Feature selection table: 

Feature DIP:s set to on
Starting voltage - -
Acceleration delay 5 -
Deceleration 5 6

The selected feature value is set with DIP 1-4:

0 - - - -
1 1 - - -
2 - 2 - -
3 1 2 - -
4 - - 3 -
5 1 - 3 -
6 - 2 3 -
7 1 2 3 -
8 - - - 4
9 1 - - 4
10 - 2 - 4
11 1 2 - 4
12 - - 3 4
13 1 - 3 4
14 - 2 3 4
15 1 2 3 4

After each feature selection/setting the loco must be set on the powered track to save the values in the decoder memory. The lights blink slowly when setting is confirmed. 

Repeat the process for the selections until you are satisfied with the feature programming.… 

Decoder mounting tips:

Remember to service your loco properly before the conversion, so it is mechanically and electrically ok.  Change broken light bulbs and worn coals/brushes, give the loco mechanical parts a good cleaning session and then lubricate it properly. Give it a test run and verify that it is running smoothly. Then you can eliminate the mechanical problems as much as possible sources of trouble, in case something does not work properly.

And as usual, be sure to work in an antistatic environment, preferably with an antistatic mat and a wrist-band that is connected to ground.

Cable colors:

Red Pickup shoe
Black Chassis ground
Orange Motor +
Gray Motor -
White Function (forward direction)
Yellow Function (backward direction)
Blue Function return, separated from chassis
Green (F1 - not used)
Purple (not used)

Note - There are two ways of connecting the lights, depending of bulb socket type:

If the lights are grounded to the chassis, then attach the white and yellow cable to the respective light (+)lead. 
Then the function return is grounded to the chassis. 

If the lights ground is separate from the chassis (floating ground connection), then attach the white and yellow cables to the respective light (+)lead and ground the function return to the blue cable instead. The blue cable must NOT be connected to chassis ground. 


Test the loco before you mount the body to ensure proper operation, also be careful that metal parts of the body are not in contact with the decoder chip or the cable ends. If the decoder board is shorted, it may very well be destroyed. 


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