DCS and TMCC

Yes, you can connect 1 wire, the common AKA Black posts together. You can also on the input side only bond or share a power source between multiple inputs.

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The big rule is NEVER fully connect 2 of the outputs. Again, on the outputs, do not connect the red posts- aka center rail.

@terryd73 posted:

I have run DCS for several years and I have also occasionally run a few TMCC trains that I have using a Cab1 base and the appropriate cable. My layout has two separate loops each powered by a separate out put from a ZW transformer. My question is, can I run a jumper wire between fixed 1 and fixed 2 on the TIU so that I have TMCC signal to both loops? I don't want to damage my TIU so I am asking before trying this.

Also, should have said this- the ZW has U common shared across ALL channels.

So it's highly likely you ALREADY have TMCC connected and shared on your entire layout- no changes required.

Again, with a ZW as your power source- the U terminals to the TIU black terminals are all already all common- all connected meaning you already have TMCC on both tracks if one track is connected to the TMCC base.

Thank you Vernon, I was pretty sure that was the case but I did not want to take a chance with out asking first. I appreciate the help!