... conditions. We can customize multi-channel video, multi-channel audio, multi-channel data, multi-channel telephone, multi-channel switch ... modem. Applications of digital video optical modem Intelligent Transportation System, Connection of Sub-network for Surveillance Center, Public Security ... of shell is unique. Support Hot-swap functionMTBF: ≥ 1,000,000 hourssupport RS-232, RS-422, and RS-485 data ...