... Cable ConnectionRS232:DB9-F. RS485/422:DB9-F or Pluggable Screw Terminal.Wire End Termination: None.Optical interface Wave length: 850nm,1310 ... ] PartNo. DescriptionCi-sf110-MMultimode fiber 2KM, one fiber port, connector ST/SC/FC (optional), Rate data: 0-10M.Ci-sf120 ... -SSingle mode fiber, transmission distance: 20KM, single fiber port, connector ST/SC/FC (optional), Rate data: 0-10M.Ci-sf120 ...