... data: 0-10M.PcsCi-sf120-MMultimode fiber 2KM, dual fiber ports, connector ST/SC/FC (optional), Rate data: 0-10M.PcsCi ... data: 0-10M.PcsCi-sf120-SSingle mode fiber, dual fiber ports, transmission distance 20KM, connector ST/SC/FC, Rate data: 0 ... Rs232/485/422 to Fiber Optic Converter with two optical ports support daisy chain link Ci-sf110-m/s