The 40ch active DWDM Mux Demux is a high density, low loss and standalone DWDM device based on AAWG (Athermal Arrayed Waveguide Grating) technology. Its front panel contains transmission status indicators to identify link status visually when the power is turned on. And it can also be simply managed and monitored through the WEB interface. In accordance with the ITU-T G.694.1 100GHz grid, it maximizes the capacity of the C-band range.