Why would you want to do that?
I run both on one loop but either you can choose or if you run both be very attentive. Use the DCS variable output to control conventional or increase the variable voltage to max, 19 volts is my set point, and then run the DCS or TMCC units. Doing both conventional and command on the same track can be done as long as your conventional engine requires a high enough voltage to run and still get the other locomotives to get enough voltage to power the command control electronics.
So for instance should I want to run one of my reproduction Dorfan Crocodile engines I cannot run a command engine on the same track since 6 volts gets the Dorfan unit going almost too fast.
Change that up to say a 390e with a good consist of 8 freight cars and putting a command engine on the same track is not and issue.....as long as you have enough room and skill to start the conventional engine then immediately start and get the command engine running.
I hope that helps!
