I didn't read the wiring diagram correctly. I see now it should be on the XT21 port along with the supply, and the supply has BOTH 115 and 230 VAC.
This is surely a beginner question but where is a negative terminal for the 115 VAC supply, for a s4C?
We're running a router and want to change the power supply to come from the robot controller instead of from the wall.
