FIBRE OPTIONS Model S. No. Description S731DVT-EST1 S33036 Digital Video TX, Return MPD Data, Can, 1 Fibre   S731DVT-RST1 S33037 Digital Video TX, Return MPD Data, Rack, 1 Fibre   S731DVR-EST1 S33038 Digital Video Rx, Return MPD Data, Can, 1 Fibre   S731DVR-RST1 S33039 Digital Video Rx, Return MPD Data, Rack, 1 Fibre   S731DVT-EST2 S33040 Digital Video TX, Return MPD Data, Can, 2 Fibre   S731DVT-RST2 S33041 Digital Video TX, Return MPD Data, Rack, 2 Fibre   S731DVR-EST2 S33042 Digital Video Rx, Return MPD Data, Can, 2 Fibre   S731DVR-RST2 S33043 Digital Video Rx, Return MPD Data, Rack, 2 Fibre   Multimode Fibre. S731DV video and reverse data links provide digital transmission of video and return multiprotocol data. The link converts analog baseband composite video to 8-bit digital format for transmission over one or two fibers. The links support all major video formats. Return data permits remote control of a PTZ at the camera station. S731DV models feature multimode operation. The unique multiprotocol data design accepts all major data formats. Relay/contact closure is supported from the camera station to the control station.