... mounting, redundancy power input(9V~30VDC),relay output alarm. Ci-sf120 contains two fiber optic transceivers one electrical interface. The modems ... connector ST/SC/FC (optional), Rate data: 0-10M.PcsCi-sf120-MMultimode fiber 2KM, dual fiber ports, connector ST/SC/FC ... connector ST/SC/FC (optional), Rate data: 0-10M.PcsCi-sf120-SSingle mode fiber, dual fiber ports, transmission distance 20KM, connector ...