Higher Speed PON (also known as G.9804, HSP) is a family of ITU-T recommendations (computer networking standards) for data links, capable of delivering shared Internet access rates up to 50 Gbit/s (gigabits per second, Gbps).
[2] It provides upgrade paths for legacy PON generations such as GPON, XG-PON, XGS-PON, and 10G-EPON.
[3] Following the publication of 40 Gbps NG-PON2 in July 2015, standardization activities turned to higher speed PON.
[6] It provides requirements for backwards compatibility with the G.9807.x series covering GPON, XG(S)-PON, and 10G-EPON systems.
It is intended to support a variety of physical medium dependent (PMD) sublayers in all high speed PON systems and be future-proof.