Thank you for posting the question, Dale! When our club member who is up on Legacy stated the wire from the Legacy base goes to the common rail, I questioned it in my mind. I didn’t say anything since as you know, I’m an MTH guy too. I just checked my TMCC base wire. It is connected to the terminal block feeding the center rails. The TMCC base is connected to the TIU with the appropriate cable. I can run my two TMCC engines and One Legacy engine with the DCS remote fine. It would seem to me we could use the common bus, but I also would like the Legacy folks to let us know.
Mike, thank you for clarifying common versus ground. Yes, we mean common, and not tied to an earth ground.