The Allen-Bradley 1786-RPFRL/B is a robust ControlNet Fiber Optic Repeater module designed to extend the communication distance and enhance the reliability of your industrial network. By converting ControlNet coaxial signals to fiber optic signals, this module provides exceptional immunity to electrical noise and interference, making it ideal for harsh industrial environments. The 1786-RPFRL/B allows for the creation of star, bus, or ring topologies, offering flexible network design options. It features standard ST fiber optic connectors for secure connections and LED indicators for power and network status, facilitating easy installation and troubleshooting.