... components (3 ports) 8+1-CH Coarse Wavelength Division Multiplexer (CWDM Mux/Demux) Module 4,8,16,18-CH ... Module(4, 8, 16 channel) 100G, 200G DWDM Optical Add-Drop Multiplexer(1x2) Isolator/Circulator/Switch/MVOA 1310 single/dual stage Polarization ... band Polarization Insensitive optical circulator 4 ports PM Circulator 1x2 optical switch 1x4 optical switch 1x8 optical switch 2x2 optical switch PM ...