The American Fibertek 440C Series transmits four channels of high-quality, FM video on one multimode optical fiber at 1300 nm. The 440C Series can be used in applications up to 5 Km (3 miles). For longer distances, consult the factory for an extended range 440C-E version. Designed to be completely transparent to all camera and monitor manufacturers, the system requires no field adjustments at installation or additional maintenance thereafter. Diagnostic indicators provide a quick visual indication of system status. The 440C Series may be ordered as stand alone modules or rack cards that are mounted in the SR-20D/2 or SR-20R/1 American Fibertek Card Cages.