Lionel TMCC

The TMCC signal will go anywhere there is a common outside rail.  It will have no effect on any conventional or DCS locomotive running on the tracks.

The Non TMCC locomotive will not be affected by the presence of a TMCC signal. It is like your TV does not even recognize the radio signals for commercial radio stations, they are present, but unrecognized by the television.

Yes the signal will go to both tracks, no it does not have any effect on the conventional train, Yes it will work just fine.

Doug

Thanks Guys.  Next question is: There is a Lionel Train Master Command Control System and then there is a Legacy Cab-1 Control system. Would both work and is one better then the other. The train is a Lionel GG1 #18343 .

Both systems will work with what you have. If you ever purchase newer Legacy engines they will both work with that as well, BUT, the Legacy system will allow you to access all the features of the engine whereas the TMCC will not.

I upgraded to Legacy and never looked back. Good Luck!!