2 Channel Fiber Video Converter 1.Compatible with PSL, SECAM, NTSC 2.Support RS-232, RS-422, and RS-485 data protocol 2 Channel Fiber Video Converter CUFOTEK :2-channel CCTV fiber optic transceiver is with advanced technological design, ultra-small size, excellent performance, especially suitable for installation dimensions, volume, space, special requirements of the application field can be used ...