Allen-Bradley 1794-ASB Flex I/O communication adapter is a high-performance Remote I/O (RIO) interface from the Rockwell Automation Flex I/O 1794 series, designed to connect Flex I/O racks to RIO-capable controllers for reliable distributed control. The 1794-ASB mounts on a DIN rail and features one RIO communication port, supporting communication rates of 57.6 Kbps, 115.2 Kbps, and 230.4 Kbps. It operates with an input voltage range of 19.2–31.2 V DC and supports up to eight Flex I/O modules, providing scalable connectivity for modular automation systems. Engineered for robust performance, the 1794-ASB ensures stable and efficient data exchange within Flex I/O distributed applications.