Summary - G.987.3 (05/2025) - 10-Gigabit-capable passive optical networks (XG-PON): Transmission convergence (TC) layer specification

Recommendation ITU-T G.987.3 describes the transmission convergence layer for 10gigabitcapable passive optical network systems – a family of flexible access network systems that operate over a point-to-multipoint optical access infrastructure at nominal data rates in the order of 10.0 Gbit/s in at least one direction, while providing a wide range of broadband and narrow-band services to end-users.
The 2025 revision of Recommendation ITU-T G.987.3 builds upon its 2014 revision, as amended in March 2020 and May 2021, implementing the TC layer consistency updates across the ITU-T PON specifications and providing routine maintenance fixes.