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ITU-T G.989.2

40-Gigabit-capable passive optical networks 2 (NG PON2): Physical media dependent (PMD) layer specification

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Organization: ITU-T
Publication Date: 1 February 2019
Status: active
Page Count: 122
scope:

This Recommendation pertains to flexible access networks using optical fibre technology. It describes a network supporting multiple services with bandwidth requirements ranging from that of voice to data and video, running at an aggregate reference downstream rate of 40 Gbit/s.

This Recommendation specifies characteristics of the physical media dependent (PMD) layer of a passive optical network (PON) system based on time and wavelength division multiplexing (TWDM) and an optional point-to-point wavelength division multiplexing (PtP WDM) system that can be used in an overlay to TWDM with the capability of bidirectional data transmission between optical line termination (OLT) and optical network unit (ONU).

The optical access network (OAN) addressed by 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 legacy ODN infrastructure is based on a point-to-multipoint tree and branch option using power splitter based technology (see [ITU-T G.989.1] for additional details). However, the use of wavelength splitters in the ODN is also allowed.

This edition includes updates from Amendment 1, Amendment 2 and relaxes certain parameter values related to OOB/OOC/IBXT.

Document History

ITU-T G.989.2
October 1, 2020
40-Gigabit-capable passive optical networks 2 (NG-PON2): Physical media dependent (PMD) layer specification Amendment 1
This Recommendation pertains to flexible access networks using optical fibre technology. It describes a network supporting multiple services with bandwidth requirements ranging from that of voice to...
ITU-T G.989.2
August 1, 2019
40-Gigabit-capable passive optical networks 2 (NG PON2): Physical media dependent (PMD) layer specification Corrigendum 1
A description is not available for this item.
ITU-T G.989.2
February 1, 2019
40-Gigabit-capable passive optical networks 2 (NG PON2): Physical media dependent (PMD) layer specification
This Recommendation pertains to flexible access networks using optical fibre technology. It describes a network supporting multiple services with bandwidth requirements ranging from that of voice to...
ITU-T G.989.2
August 1, 2017
40-Gigabit-capable passive optical networks 2 (NG-PON2): Physical media dependent (PMD) layer specification Amendment 2
A description is not available for this item.
ITU-T G.989.2
April 1, 2016
40-Gigabit-capable passive optical networks 2 (NG-PON2): Physical media dependent (PMD) layer specification Amendment 1
A description is not available for this item.
ITU-T G.989.2
December 1, 2014
40-Gigabit-capable passive optical networks 2 (NG-PON2): Physical media dependent (PMD) layer specification
This Recommendation pertains to flexible access networks using optical fibre technology. It describes a network supporting multiple services with bandwidth requirements ranging from that of voice to...
ITU-T G.989.2
November 1, 2001
Phoneline Networking Tranceivers - Payload Format and Link Layer Requirements Series G: Transmission Systems and Media, Digital Systems and Networks Digital Sections and Digital Line System - Optical Line Systems for Local and Access Networks
A description is not available for this item.
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References

This document references:
ITU-T G.989.3 - 40-Gigabit-capable passive optical networks (NG-PON2): Transmission convergence layer specification
Published by ITU-T on October 1, 2015
This Recommendation specifies the transmission convergence layer of 40 Gigabit-capable passive optical network (NG-PON2) systems providing optical access for residential, business, mobile backhaul,...
This document references:
ITU-T G.652 - Characteristics of a single-mode optical fibre and cable
Published by ITU-T on November 1, 2016
This Recommendation describes a single-mode optical fibre and cable which has zero-dispersion wavelength around 1310 nm and can be used in the 1310 nm and 1550 nm regions. Both analogue and digital...
This document references:
ITU-T G.657 - Characteristics of a bending-loss insensitive single-mode optical fibre and cable for the access network
Published by ITU-T on November 1, 2016
This Recommendation describes two categories of single-mode optical fibre cable with improved bending loss performance compared with that of ITU-T G.652 fibres. ITU-T G.657 fibre was originally...
This document references:
ITU-T G.671 - Transmission characteristics of optical components and subsystems
Published by ITU-T on August 1, 2019
The object of this Recommendation is to identify the transmission-related parameters for each of the components listed below and define the values of such parameters specifiable for each of the most...
This document references:
ITU-T G.694.1 - Spectral grids for WDM applications: DWDM frequency grid
Published by ITU-T on October 1, 2020
The purpose of this Recommendation is to provide the definition of a frequency grid to support dense wavelength division multiplexing (DWDM) applications.
This document references:
G.698.1 - Multichannel DWDM applications with single-channel optical interfaces
Published by ITU-T on June 1, 2023
The purpose of this Recommendation is to provide optical interface specifications towards the realization of transversely compatible dense wavelength division multiplexing (DWDM) systems primarily...
This document references:
ITU-T G.989.3 - 40-Gigabit-capable passive optical networks (NG-PON2): Transmission convergence layer specification
Published by ITU-T on October 1, 2015
This Recommendation specifies the transmission convergence layer of 40 Gigabit-capable passive optical network (NG-PON2) systems providing optical access for residential, business, mobile backhaul,...
This document is referenced by:
ITU-T G.807 - Generic functional architecture of the optical media network
Published by ITU-T on February 1, 2020
This Recommendation describes the generic functional architecture of the optical media network from the viewpoint of the propagation of optical signals and the non-associated digital overhead, in the...
This document is referenced by:
ITU-T SUPP 66 SERIES G - 5G wireless fronthaul requirements in a passive optical network context
Published by ITU-T on September 1, 2020
This Supplement considers the requirements for 5G wireless fronthaul specifically in the setting of optical access networks. It synthesizes various specifications from other groups into practically...
This document is referenced by:
ITU-T G.9807.1 - 10-Gigabit-capable symmetric passive optical network (XGS-PON) Amendment 1
Published by ITU-T on October 1, 2017
A description is not available for this item.
This document is referenced by:
CEI EN 62150-5 - Fibre optic active components and devices - Test and measurement procedures Part 5: Wavelength channel tuning time of tuneable transmitters
Published by CEI on December 1, 2017
This part of IEC 62150 specifies test and measurement procedures for the wavelength channel tuning time of tuneable transmitters. It applies to laser transmitters, and to the transmitter portion of...
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