... management 3.RS485, RS232,RS422 Data transmission 4.1CH Optical Fiber Transceiver 1CH Video Fiber Optic Transceiver All transmission over ... compatible with PAL, NTSC & SECAM Wide optical dynamic range and free of optical adjustment LED indicators for monitoring of system ... dBm0 dBmReceiver Sensitivity -22 dBm -28 dBm -28 dBmMax. Optical Loss -12 dBm -23 dBm28 dBm GeneralMean Time Between Failures ...