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What to do with DAT & COM, when a Powermaster replaces TPC 300/400?

SM Super'O' manOGR Forum Member

I believe I had a failure on a TPC 300, so I replaced it with the newer(blue) Powermaster(the electronic unit). What to do with the DAT & COM wires; I have other TPC's that still work on the same layout. Can I just connect the DAT & COM wires to a neighboring TPC or just leave them but still keep them in series(away from anything, but just dangling?? I use a CAB 2 system.  thanks

Last edited by Super'O' man
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VB Vernon BarryOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

Your new powermaster gets it's signal over radio frequency. It cannot use the older wired serial data and there is no place to connect it to a powermaster.

Your TPCs (both 300s and 400s are the same in this regard) MUST HAVE wired serial data from the base somehow, someway.

Since you didn't provide any diagram, I don't know where we are at in the serial data chain from the base to multiple TPCs- but at the end of the day they still need to be wired to the base.

Last edited by Vernon Barry
VB Vernon BarryOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER
@Super'O' man posted:

Can I just connect the DAT & COM wires to a neighboring TPC or just leave them but still keep them in series(away from anything, but just dangling?? I use a CAB 2 system.  thanks

Also, leaving wires dangling - remember they are connected to your very expensive and no longer repaired by lionel legacy base- why on earth would you chance wires dangling just begging to short out the base serial data port?

SM Super'O' manOGR Forum Member

All TPC's are wired to the command base. When you replace a TPC what do you do with the DAT & COM wires? Dangling means that the are free and not connected, but still in series to the rest of the TPC'S. Can I just connect the unused DAT/COM wires to another TPC? meaning that there would be 2 sets of DAT/COM wires to the same TPC

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