DA120 OEM Decoder Produced for Atlas N GP40-2

This product has been replaced by the 1 Amp N Scale Mobile Decoder for Atlas N-Scale GP40-2, U25B, SD35, Trainmaster, B23-7 and others (DN163A0) and is no longer available. Click here to view the DN163A0.




Current Rating-Motor
1.0 Amps (1.5 Amps Peak)
Custom for Altas N GP40-2 (1997 only)
Pre-installed in locomotive
Function Outputs
2 (read more)

2 function decoders support F0 Forward and F0 Reverse.  This allows for reversing headlights or for two separate functions.

How functions are numbered:

F0 (FWD) White

F0 (REV) Yellow

The Blue wire is Lamp Common to allow for continuous lamp operation.

F1 Green

F2 Violet

F3 Brown

F4 White with Yellow Stripe

F5 White with Green Stripe

F6 White with Blue Stripe




and so one are each counted as one function.  This is an industry wide convention. 

Function Type
Standard (read more)

Standard functions turn functions on and off. Many Digitrax decoders with standard functions offer head lights that can be set up to be either automatically reversing or individually controllable.  Digitrax decoders are shipped with automatic reversing head lights enabled.  When you are using a standard function output, simply hook up the function output to the function device and you will be able to turn it on and off from your throttle.

Replaced by
Current Rating-Functions