Specifications: 1) Data transmission rate: 0-115.2kbps auto-negotiation 2) Transmit distance: a) MM: 2km b) SM: 20/40/60/120km 3) Fiber connector: SC/FC 4) Electrical connector RJ45, peripheral equipment DB9 connector, peripheral equipment DB25 connector 5) TX and RX LED 6) Construct star, chain network topology 7) Transparent communication, no configure, plug and plan 8) Fiber transceiver module, output optical power stabilize and reliable, serial port protect circuit, hot pluggable 9) Full insulation in 2 terminal, high anti electromagnetic interfere, and thunder protect 10) Power supply: 220V AC and/or -48V DC 11) Operation temperature: -10 ~ +60癈 12) Storage temperature: -45 ~ +85癈 13) Humidity: 0-95% 14) Remark: we can also provide optical modem of OP-FMO-V.35, OP-FMO-ME1,OP- FMO-MFE1, OP-FMO-ETH,OP-FMO-RS232, OP-FMO-RS485 and OP-FMO-RS422