Here is a wiring diagram for the MR boards with the 4 wire switch like the Mace Windu board. You can use any latching SPDT or DPDT switch. In the diagram I used the DPDT illuminated switch as an example. You could use the other side of the switch too, but make sure you don't mix the connections. Example: Use C1, NO1 and NC1 or C2, NO2 and NC2 but don't mix the two.
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