The C4IDC is a digital input module from the C4 series, featuring relay type operation with input specifications of 20 mA / 10-32 VDC / 2 kΩ / 1.5 mA drop-out current, and output capabilities of 50 mA / 4.5-30 VDC / 25 mA supply logic. It operates within a temperature range of -30 to 80°C.