@ArtsModelTrains You are correct that the DZ-1000 can handle the non-derail control if wired like is shown in the instructions I posted above.
Apologies for my late night error. I said non-derail, but was actually thinking of using a DZ-1008 relay to control which center rails are powered, depending on turnout position. In some cases, selectively powering either the through or divergent center rail can be helpful.
On a Double Crossover, the relay can selectively provide power to pairs of the center diamond rails. Some trains with either too few pick-up rollers or short spacing between pick-up rollers need this.
Note that where the DZ-1008's White and Gray wires connect was unclear in the instructions shown on the Ross Site. Here, I added the red numbers where the DZ-1008's White and Gray wires connect to the 175 diamond.
