The RLH 4RU ISDN/BRI Fiber Optic Link system transmits a 2-wire Basic Rate Interface (BRI) ISDN line over multimode or single mode fiber optic cable. ISDN signals are sensed and recreated at both ends conforming to 2B1Q formats. A CO and a Sub card are required for a complete system.
Fiber optic cable is immune to EMI/RF interference, ground loops, and high voltage surges from lightning or ground faults, and is ideal in electrically noisy environments such as near large power sources, electrical motors, and radio communications equipment. By utilizing fiber optic cable, the 2 wire ISDN/BRI card provides absolute electrical isolation between both ends of the network.
This system is environmentally hardened and requires a local 24~56VDC power source. It is designed to fit into any of our 4RU card shelves and housings and is covered by our exclusive unconditional lifetime warranty.