This is an 8 channel CWDM mux/demux that operates over channels 47.49.51.53.55.57.59.61. It has a 1310 port and LC connectors. This unit can be used as either a multiplexer or de-multiplexer (mux/demux). and is a plug and play system. All of our mux/demux products are 100% compliant and provide a cost effective solution for your network upgrade needs. With our certification test program. we guarantee your product will work correctly the first time.