TMCC on separate loops

Hook one wire from the Command Base to the U side (Outer rail) of the transformer. Call it done.

Are the commons on the Z4K truly connected internally?  If so hook the 1 wire to either loops outside rail or one of the common posts on the transformer.  1 wire as long as the commons are connect internally of the transformer.

Looks like Jim beat me to it.  What Jim says!

To interconnect the two loops, If you are FULL command, no conventional engines, separating the loops electrically is unnecessary. But, I'd 'block' the two loops to increase running flexibility. 

Hi Jim and Marty,

I hooked the TMCC Command Base wire to a black (U- outside rail) post on the Z-4000 and both independent loops operate perfectly. Somebody hit the big red "That Was Easy" button for me!

Thanks guys,

Bill

THANK YOU!

Bill