The Allen-Bradley 1797-BCNR is a ControlNet Redundant Media Bridge, a critical component of the FLEX Ex I/O system. This module establishes a secure and reliable communication link between I/O modules in hazardous locations and a primary ControlNet network. By supporting redundant media, the 1797-BCNR enhances system availability and fault tolerance, ensuring continuous operation even if one communication path is compromised. It is specifically engineered for applications requiring intrinsically safe connections in demanding industrial environments, providing robust performance for critical process control.