ITU-T G.987.2 PDF

This Recommendation pertains to flexible access networks using optical fibre technology. The focus is primarily on a network supporting services with bandwidth requirements ranging from that of voice to data services running at up to 10 Gbit/s. Also included are broadcast services.

This Recommendation describes characteristics of the PMD layer of an optical access network (OAN) with the capability of transporting various services between the user-network interface and the service node interface. Described in this Recommendation are also reach extender boxes, providing extension of the system reach beyond that supported by XG-PON PMDs. Additionally, this Recommendation describes the wavelength enhancement band for XG-PON, which allows for the coexistence of XG-PON with GPON (see [ITU-T G.984.5]).

The OAN dealt with this Recommendation enables the network operator to provide a flexible upgrade to meet future customer requirements, in particular, in the area of the optical distribution network (ODN). The ODN considered is based on a point-to-multipoint tree and branch option.