Summary - G.807 (10/2024) - Generic functional architecture of the optical media layer

Recommendation ITU-T G.807 describes the generic functional architecture of the optical media layer, that supports the propagation of signals within a transport network. This description is independent of the client characteristic information (CI) carried by a signal in the media network.
Revision 2 updates the terminology, changing the modulator/demodulator construct to transmitter/receiver. It also aligns (esp. network media channel (NMC)) with the updated terminology in ITU-T G.959.1 (2024) Amd. 1 to include subcarrier modulation and point-to-multipoint optical topology in media architecture. Additionally, clause 10 is reorganized and includes a description of optical tributary signal (OTSi), which carries multiple independent digital clients using synchronization message channel (SCM).