Multiple sources indicate that the A03B-0819-C060 functions as a Modular 24 VDC I/O Unit designed for the FANUC I/O Link ecosystem. Its primary role is to expand discrete input/output capabilities for FANUC CNCs (such as the 0i, 16i, 18i, and 21i series) and robotic systems.
Key features from this perspective include:
It's important to note that this model number is also used to describe other types of FANUC components:
Given the discrepancies, consulting the official FANUC documentation for your specific system (e.g., a 16i/18i/21i CNC) is the most reliable way to confirm the exact configuration and function of this part number in your application.