Stan,
The MTH monorail (trolley) 10-3048-1 has PS 3 electronics in it. I would assume that means I can run it on DCS or in conventional mode.
I suppose I could try to do the built in DCS programming to run end to end, but the accuracy on trains isn't perfect... probably worse on a monorail.
My plan is to run it conventional so it would act like any other trains with an E-unit. The reversing hardware could probably be the same stuff that is used for auto-reverse trolleys.
My question is more related to the mechanics of getting a trigger at each end of a non-loop monorail line that I could then use with some electronics to reverse.