The JDSU WaveReadyTM Coarse Wavelength Divison Multiplexer/Demultiplexer Module (CWDM Mux/Demux) is a flexible, low-cost solution that enables the expansion of existing fiber capacity. Coupled with highly reliable passive optics certified for environmentally hardened applications, the CWDM Mux/Demux lets operators make full use of available fiber bandwidth in local loop and enterprise architectures.