Recommendation ITU-T G.671 addresses the transmission characteristics of optical components used in wide area optical networks and optical access networks
. A wide variety of optical components are used in optical networks (ON) for wavelength routing, wavelength division multiplexing (WDM) and wavelength switching. Deployed. Recommendation G.671 ensures that optical transmission components meet the specified transmission characteristics. In addition, the recommendation addresses the operating conditions, installation and other aspects relevant to operation.