I know the switch inputs are spec'd to be dry contact to ground, but what is the real input characteristic? Typically they are really some logic circuit's input and really have a voltage spec, like a TTL or CMOS input, and thus could possibly be driven from a compatible systems output.
My question however is for the purpose of using an illuminated switch on the input. If I had an LED lit switch and appropriate sized resistor going from the input to a 5 volt (or 12 v) supply, then when the switch is closed to ground, the LED would come on.
Joe T.
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