VF-402-KIT 4-Channel Video over Fiber Bundled Kit Datasheet Manual Firmware FeatureCompliant with hybrid video (AHD/TVI/CVI/CVBS)20km long-distance data transmissionFiber optic transmission of four video signals on one fiber with RS485 data signals which may be one way with the video or optional duplexStatus indication for power supply, optical signal and videoHigh-speed synchronous digital transmission technologyEffective against electromagnetic interference, radio frequency interference, 6KV high-level lightning protection designGuarantees safe transmission under poor electromagnetic environmentMaximum tolerable link loss for single mode single fiber is 0.35dB/kmVideo bandwidth of 60MHz, SNR>67dBWide temperature range from -20 to 70 degrees C