The Allen-Bradley 1786-RPFRXL/B is a robust ControlNet Fiber Repeater module designed for extending industrial communication networks over very long distances. Part of the Rockwell Automation family, this module converts ControlNet coaxial signals to fiber optic signals, allowing for network segments to span up to 20 kilometers. By utilizing fiber optic technology, it ensures high-speed, reliable data transmission that is completely immune to electrical noise and electromagnetic interference (EMI). This makes it an ideal solution for large-scale facilities, campus-wide networks, or applications in harsh industrial environments where signal integrity is critical. The 1786-RPFRXL/B is engineered for seamless integration into existing ControlNet systems, enhancing network topology flexibility and reliability.