... Serial Converters for Industrial Control Interface P/N:CI-SF120-MMDescription: The Ci-sf120 series is designed for use in optical ... rail mounting, redundancy power input(9V~30VDC),relay output alarm. Ci-sf120 contains two fiber optic transceivers one electrical interface. The ... , connector ST/SC/FC (optional), Rate data: 0-10M.Ci-sf110-SSingle mode fiber, transmission distance: 20KM, single fiber port ...