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ESU 54680 RailCom Module



Last Updated 191229

ESU offers the ESU 54680 RailCom Transmitter Unit that is worth a few words on the net.

The ESU 54680 RailCom Transmitter Unit is a single purpose module that can be used in parallel with any brand of mobile decoder or as a stand-alone device in unpowered rolling stock to provide basic communication for location reporting on RailCom enabled layouts.

About Programming

The ESU 54680 RailCom Transmitter Unit works as is with any RailCom-compatible system.  This statement is confirmed by spec but never tested or proven by me.  It was tested and proven by ESU, LLC at my request and confirmed the module works flawlessly with ECoS and CabControl command stations.


Since the ESU 54680 RailCom Transmitter Unit does not have the hardware support for traditional programming it is not clear but basically all it does is "catch" an address being programmed to a decoder since it cannot be addressed directly.


To program, put any decoder on a track or bench tester.  Theoretically this would work with any brand and model but probably best to support CV read back so you can validate an address command was sent and received I suppose.


Connect the ESU 54680 RailCom Transmitter Unit to the same red and black connections as this decoder.


Program the desired address for the ESU 54680 RailCom Transmitter Unit into the decoder via POM (Program On Main).


The ESU 54680 RailCom Transmitter Unit will see that address command for the decoder and accept it as its address.


Once removed from the decoder, the ESU 54680 RailCom Transmitter Unit can only be readdressed by piggybacking onto another decoder and repeating the process.


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