I'm not sure how about the voltage and the pin functions between board to board, but you can using +V or the signal to light up LEDs when the plug plugged in.the connector is (IDC), the plug is coming from another board containing microcontroller, and the device, is a ctually a group of device(1xdc motor,2xlimit_sw, 1xsensor)
by Jake Hertz
by Jerry Twomey
by Duane Benson
by Jake Hertz