The mc111cs is a media converter designed to convert 100base fx fiber to 100base tx copper media or vice versa adopting wdm technology mc111cs takes only one fiber cable to transmit and receive data which will save half cabling cost for you designed under ieee 8023u 10100base tx and 100base fx standards the mc111cs is designed for use with single mode fiber cable utilizing the sc type connector features tp link mc111cs wdm fast ethernet media converter sc single mode auto negotiation of