... is designed for use in optical RS232/485/422 general serial networks. Feature with data rate up to 10M, ... sursge protection also has overload protection function.Wire Cable ConnectionRS232:DB9-F. RS485/422:DB9-F ... 100/140um;single mode 8.3/125 um,9/125um,10/125umTransmission distance: MM 2Km,SM ... SSingle mode fiber, transmission distance: 20KM, single fiber port, connector ST/SC/FC (optional), Rate data: ...