The Allen-Bradley 1797-BCNR is a ControlNet Redundant Media Bridge module, designed as part of the FLEX EX I/O system for use in hazardous locations. This essential component enhances the reliability and uptime of industrial control systems by providing media redundancy for a ControlNet network. It establishes two independent communication paths (Channel A and Channel B) over coaxial cable. In the event of a failure, damage, or disconnection on one communication path, the 1797-BCNR automatically switches to the alternate path, ensuring seamless and uninterrupted data flow. This functionality is critical for maintaining continuous operation in process control and automation applications where network integrity is paramount.