Light transmitter: LED, light type: red, alternating light, signal output: 2 push-pull outputs, short-circuit proof, reverse polarity protected, overvoltage proof, interface type: IO-Link (via C/Q = pin 4), circuit type: the delivery state is: C/Q - pin 4: NPN normally open, PNP normally closed, IO-Link Q2 - pin 2: NPN normally open, PNP normally closed, connection: device plug M8 x 1, 4-pin, operating voltage: 10 ... 30 V DC, ambient temperature: 10 ... 60 °C (50 ... 140 °F)