... 8,16 channel uncompressed digital video, 1,2,4 reversed stereo audio and 1reversed RS232/RS422/RS485 data over ... product include CCTV, video surveillance, homeland security, ITS and etc.FeaturesTransports 1,2,4,8,16 channel digitized, high quality, ... reversed stereo audio(single directional or both directional optional) and 1 reversed data transmission(single directional or both directional optional) ...