L-com's PDW3C-40120-NN34 is a DWDM passive filter with 40 channels and 100GHz spacing. L-com's PDW3C-40120-NN34 is a 1 RU 19" Rack Mountwith Mux and Demux functionality. L-com's PDW3C-40120-NN34 has LC/APC connectors starting at channel 20 (1561.42nm) with Monitor (1%). Monitor port taps 1% of the total signal power. This value is sufficient for use with monitoring and measurement devices, such as power meters or network analyzers. L-com's PCW1D-04355-NN36 is one of thousands of fiber optic products available in-stock and ready to ship today.