This Recommendation applies to optical interfaces for coarse wavelength division multiplexing (CWDM) optical line systems for network applications using single-mode optical fibres. This Recommendation defines and provides values for optical interface parameters of physical point-to-point and ring CWDM system applications. Their principal purpose is to enable transversely (multi-vendor) compatible interfaces.
ITU-T G.695-2010 history
2015ITU-T G.695-2015 Optical interfaces for coarse wavelength division multiplexing applications
2010ITU-T G.695-2010 Optical interfaces for coarse wavelength division multiplexing applications Study Group 15