Testing Bachmann 36-567 with ESU 53900 DCC Decoder Tester

[NIK]

Slightly off topic but does anyone know if using the ESU test rig you can install two decoders at the same time, say to simulate a piggy back situation of setting up one decoder for driving and the other for sound as has recently been seen with I think Lenz or Zimo and TTS.

Rob

 

Hi,

 

I don't think one can as all the decoder connectors on my ESU 53900 tester appear to have all their pins that are common connected in parallel to the loads (motor or LEDs or logic level function buffers to LEDs).

 

I guess a motor only decoder if there is such a thing could be plugged in at the same time as a function only decoder although I'm not sure what would happen to the acknowledge pulses back from the function only decoder.

 

Not sure about sound only decoders or sound decoders not connected to motors - same acknowledge pulse problem might arise.

 

If the above situation existed one might have to use decoder locks in order to read and change CVs - so maybe that would solve the acknowledge pulse problem.

 

Regards

 

Nick

[Suzie]

You cannot plug more than one decoder in to the tester without risk of damaging one or both decoders. It will result in connecting things together that should not be connected together.

[RAF96]

Thanks to NIK and Suzie for that caution.

Rob