The Allen-Bradley 1794-ACNR15 is a ControlNet Redundant Media Adapter designed for the FLEX I/O platform. This module serves as the crucial link between the FLEX I/O backplane and a ControlNet network, enabling seamless communication for distributed I/O applications. Its key feature is the support for redundant ControlNet media through dual BNC connectors, which significantly enhances network reliability and system uptime by providing a fault-tolerant communication path. The 1794-ACNR15 is capable of supporting up to eight I/O modules, making it a versatile and robust solution for critical industrial automation and control systems where network integrity is paramount.