... 422 Optional, fiber optical transmitter, video optic transceiver 1/2/4/8/16 &1-128Channel Digital Video, Audio, Data, E1 and ... -250C for Medium-Haul Video Transmission. These environmentally hardened units provide transmission of sixteen independent video channels, eight bi ... , Local and Remote Video transmitting Status, Ethernet Status. Support 1/2/4/8 channels Video plus E1, Ethernet, Audio, Data, ...