*'''Power''' pin: +9 ... +30 VDC positive power input.
*'''Power''' pin: +9 ... +30 VDC positive power input.
*'''Ground''' pin: negative/ground connection from power supply.
*'''Ground''' pin: negative/ground connection from power supply.
−
*'''I/0''' pins: programmable Input/Output pins (Open Collector output, max 30V or Digital input where 0-7.3 V is detected as logical "0", 7.3-30 V is detected as logical "1").
+
*'''I/0''' pins: programmable Input/Output pins (Open Collector output, max 30V or Digital input where 0-5 V is detected as logical "0", 8-40 V is detected as logical "1").