FiberMart DWDM Mux Demux is usually used for long-haul transmission under transparent protocol and suit applications including 10/1G Ethernet, SDH/SONET, 16/8/4/2/1G Fibre Channel, FTTx and CATV. There will be duplex LC/UPC connector port and other Express Port, Monitor Port, 1310nm passband port and 1550nm port for these multiplexers according to customer choice. With super low insertion loss, Fibermart DWDM Mux Demux allows for any protocol to be transported over the link, as well as a specific 48 wavelengths in 100GHz grid(0.8nm) and 96 wavelengths in 50GHz grid(0.4nm). We provide 1 years free warranty for FiberMart DWDM Mux & Demux and it is in stock w/ free shipping for worldwide delivery! You can go to Fiber-MART.COM get more infos!