stan2004 posted:Stop the presses! I gave you bad information on the Z-controller. I examined mine and it appears "Black" is NOT common between input and output. Instead it the "Red" that is connected internally. OTOH for the DCS-RC, the "Black" is common between input and output. I'll have to revise my diagram. Maybe it can still be done with "just" a DPDT configuration but as you have intuited, it may require a more complex (e.g., 3P) switch type.
If you have a meter, with nothing connected to the Z-controller, could you measure the Ohms between the input center-pin and the output "Red" banana...and separately the Ohms between the input "sleeve" and the output "Black" banana? You can plug in the barrel-connector with pigtails if it makes it easier to attach the meter probes.
It is really strange.
I just did a continuity check on my Z-1000, and I get continuity between the center input and the red output, but on the other side I get high resistance between both the center and sleeve input and the black output.