The GE-Emerson IC610MDL103 Series One Sink I/O Module provides a dual function by providing 4 input circuits each designed to receive a single discrete (ON/OFF) signal from user supplied devices, plus 4 output circuits each capable of controlling user supplied discrete (ON/OFF) loads. Typical input devices include limit switches, pushbuttons, selector switches, and relay contacts. Typical loads include relay coils, motor starters, solenoid valves, and indicator lights.
24VDC power to sense the state of the inputs is provided by the rack power supply. The 4 output circuits are referenced, through their respective loads, to a single DC power source. The ON/OFF state of each input and output circuit is indicated by an LED.