... Port 20km,40km,60km,80km Reliable Quality Factory Price Optic Transmitter and ReceiverFeatures: * Uncompressed video, 8-bit / 10-bit ... , RS422/RS485 compatible data interfaces * No electromagnetic interference, no radio frequency interference, no ground current* Using APC circuit, invariable optical ... fuses. Consult factory for different transmission distance. Optic Transmitter and Receiver