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connect 12 V - 24 V on X4, on the Bottom of the device
connect 12 V - 24 V on X2 for Input, on the Top of the device
connect 12 V - 24 V on X2 for Output, on the Top of the device
connect all Grounds
connect one port from Output 1 to 14 to the electrical consumer [M], [M] can be a 24V LED
Set connect the ground from the electrical consumer [M] to the same ground as the RevolutionPi
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