Ed,
I am using both ross and atlas switches and switch power is from an independant supply. Could the switches between loops be an issue?
Possibly there could be problems for any of the following reasons:
- If the switch tracks between the loops do not properly have their center rails insulated from one loop to another, allowing a connection between the two loop's power sources
- If the switch tracks are wired for non-derailing operation, using an independent power supply which is not in phase with the loop's power supplies
- If the power supplies for all loops are not in phase with each other
- If any one of the loops has it's Hot and Common wires reversed relative to another loop's power supply
