My layout is DCC with Unitrack. One section is a long double track with a loop at one end and bumpers at the two ends. There are two double track crossovers in the double track. On a straight run, everything is fine. If I try to crossover on either crossover I get a short. I understand that the wires to the tracks on one side are the opposite on the other which is leading to the short. I've read that I need an auto reverser. I have a DCC Specialties PSX-AR. If that is what I need, how do I wire it? Do I need 2 PSX-AR or can I wire both double crossovers with 1? Thanks. Richard Richter
A diagram would be helpful to know better exactly what you have, but generally what you would do is isolate the loop, wire the parallel tracks in phase with each other, and feed the loop from the autoreverser.
Yes, a diagram would be very helpful, since the answer to your question (1 or 2) will depend on your set up. The key is you want to wire your layout so that the reversing LOOPS are isolated, and controlled by the AR module (not the crossovers). The long section should be wired with the rails (from the front edge) alternating (i.e., red black red black) and they would feed the double crossovers the same way (just think of parallel tracks with same polarity). When you come to the big reversing loop at the one end, isolate the track before both legs of the double crossover, and feed the loop from the AR.
Yep, I would control the siding loop tracks along the bottom left loop with the PSX-AR, and wire the rest of the layout as parallel tracks with same polarity along their entire length.
