... Ethernet and Multiple-service interface in one digital video optical modem. Applications Intelligent Transportation System, Connection of Sub-network ... 1,000,000 hourssupport RS-232, RS-422, and RS-485 data protocolsConstant input optical power, and large dynamic range ,no ... directional dataInterface PortRJ-45Interface SignalRS-232,RS-422(fullduplex ),RS-485 (2/4 -wire)Code rate0~256KbpsBER≤ 10-9Audio ...