I remember a few years back a layout that had train detection (a sensor of some sort) that would stop train in one block if it detected train coming in another. I remember it being wired so that it would retain some power so CAB 1 communication and e-unit wouldn't cycle but not enough power to make the motors go then regain full power when train passed. I couldn't find this wiring setup and if its even good to do this to a tmcc loco if it requires 18v. Is there another way to trigger the tmcc brake feature with some sort of train detection if running 2 trains on a loop?
Thx
