ITU-T/FSAN PON Protocols

The Full Service Access Network (FSAN) consortium was formed under the leadership of several telephone network providers (carriers) with the goal of researching, standardizing, and promoting broadband access solutions and services. FSAN settled on PON technology as the best long range network solution, and the first FSAN PON protocol was called Broadband‐PON (B‐PON). This chapter briefly describes B‐PON. It talks about Gigabit‐capable PON (G‐PON) that is specified in the ITU‐T G.984 series, although it re‐uses portions of the G.983 series standards as appropriate. FSAN is currently developing next generation protocols, both for the relatively near term (XG‐PON) and also for the longer term (NG‐PON). The details of XG‐PON are described. The XG‐PON frame structures are very similar to those for G‐PON, except that they have been optimized for use with the higher transmission rates.