ABB DSQC223 YB560103-BD/4 is a digital I/O board designed as an expansion module for ABB robotics controllers, particularly the S3–S4 series. This DSQC223 card, identified by model YB560103-BD/4, provides a compact digital I/O interface to connect sensors, actuators, and signaling lines to the robot controller. The BD/4 designation specifies the variant within the DSQC223 family used in ABB automation setups. In ABB robotics applications, the module acts as a digital input/output interface near the controller to facilitate fast signaling and reliable I/O distribution within automated cells.
