1- 2 Channel Digital Video Optical Multiplexer Converter 2- Optical WDM 3- ethernet, analog, switch 4- factory price ... surveillance, homeland security, ITS and etc.FeaturesTransports 1,2,4,8,16 channel digitized, high quality, uncompressed video, Single directional or ... or Terminal Block with Screw Clamps Video Optical Multiplexer 2 channel Digital Video Optical Multiplexer , Video Optical Converter