We are offering optic transmission: transmission single-channel bi-directional sdi/asi digital video signal over a single fiber supports many types of redundancy, including 1+1 remote side input redundancy, 1 + 2 remote side input redundancy and one local input redundancy, to make sure the video signal transmission with high stability supports smpte 305m (sdti) 310m (19.4mbps), 344m (540mbps), m2s and dvb-asi (270mbps) formats for sdi/asi transmitter and receiver supports smpte 259m, 297m, 305m, 310m format and up to 1.485gbps, and dvb-asi (270mbps) formats for hd-sdi transmitter and receiver transmission distance on the fiber is up to 80km without relay specifications: power: input: 100 to 240v ac input: -48v dc power consumption: 15w video input ports formats: smpte 259m a, b, c, d, 29m, 305m, 310m, 344m, m2s, and dvb-asi up to 1.485gbps number: 3 (two for transmit and one for local backup input) return loss: >15db connector: 75 ohms bnc video output ports number: 3 (one for local loop out and two for output from remote unit) signal level: 800mv rise/drop time: 900ps return loss: ≥ 15, 15db jitter: connector: 75 ohms bnc fiber port number: type: single mode/multiple mode optional wavelength: 1,310/1,550nm connector: fc, sc and st optional environment: operating temperature: 0 to 50 degree celsius operating relative humidity: 0 to 90% rh non-condensing store temperature: -20 to 65 degree celsius store relative humidity: 0 to 95% non-condensing dimensions: 20.6 x 276 x 173mm one-channel sdi/asi transmitter and receiver, standalone and 1,310nm transmission wavelength, fc connector, and 220v ac power supply f13-hd-1vrb-w3043ca one channel hd-sdi receiver with one remote input and one local input redundancy, standalone, 1,550nm transmission wavelength, sc connector, and 220v ac power supply.