Sigmatek 12-008-163-O Digital Input Module CDM 163

Sigmatek CDM 163 is a C-DIAS digital input interface module designed to feed binary field signals—such as sensors and limit switches—into a Sigmatek control system via the C-DIAS bus. It is available in two variants: 12-008-163, which includes a status LED display (green, yellow and red indicators), and 12-008-163-O, which omits LEDs. The unit measures 120 mm square and 30 mm high, weighs about 0.25 kg, and has an IP20 enclosure suitable for standard industrial indoor environments. It operates from a +24 V DC supply (typical) with an acceptable range of 18–30 V DC, while the C-DIAS bus provides +5 V logic; voltage monitoring can trigger a red LED if the supply falls below 18 V. Assembly is facilitated by the CKL 031 connector set, and the part number 12-008-163 carries UL certification (E247993) with the 12-008-163-T variant not UL-listed. Environmental specs cover 0–60°C operating temperature, -20 to 85°C storage temperature, and 0–95% non-condensing humidity, with an overall robust design for distributed I/O in standard automation layouts. This module is tailored for reliable digital input capture within C-DIAS-based control architectures, delivering prompt, real-time signal states to the host controller.