... 2-Optical WDM 3-extra ethernet, analog, switch 4-factory price +7X24 HT OVD-81 Video Optical Multiplexer, Digital Video Optical ... 1,2,4,8,16 channel uncompressed digital video, 1,2,4 reversed stereo audio and 1reversed RS232/RS422/RS485 data ... status, Data traffic Video:Format: PAL/NTSC/SECAMVideo Signal: Vp-p, 75ohm ,single directional or both directional optionalDigitization: 8bits/10bitsBandwidth: ...