ITU-T Recommendations

Supplement 48 to ITU-T G-series Recommendations provides information on the electrical interface between media access control (MAC) with serializer/deserializer (SERDES) and physical media dependent (PMD) for a 10-Gigabit-capable passive optical network (XG-PON) system with asymmetric nominal data rate of 9.95328 Gbit/s in the downstream direction and 2.48832 Gbit/s in the upstream direction, hereinafter referred to as XG-PON1.Information is provided in order to facilitate the interoperability level and mass market use of the equipment based on the ITU-T G.987 series of Recommendations. The information provided in this Supplement is complementary to the physical layer requirements and specifications for the XG-PON physical media dependent (PMD) layer for XG-PON described in Recommendation ITU-T G.987.2. This scope of the information provided in this Supplement is focused on the elements in the interface which are important to the XG-PON1 specific interface, and does not intend to cover full specification for the mechanical and physical aspects of the optical PMD, which can be found in various industry multi-source agreement (MSA) PMD specifications for 10G optics.