ITU-T G.987.2
10-Gigabit-capable passive optical networks (XG-PON): Physical media dependent (PMD) layer specification
| Organization: | ITU-T |
| Publication Date: | 1 January 2010 |
| Status: | inactive |
| Page Count: | 30 |
scope:
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.
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