| Optical access network topologies for broadband services |
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Recommendation ITU-T L.90 describes the optical access network to be used in the design and construction of fibre to the home (FTTH). It deals mainly with access network architectures and the upgrading or new deployment of optical fibre to optical access networks. |
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| Citation: |
https://handle.itu.int/11.1002/1000/11531 |
| Series title: |
L series: Environment and ICTs, climate change, e-waste, energy efficiency; construction, installation and protection of cables and other elements of outside plant
L series: Environment and ICTs, climate change, e-waste, energy efficiency; construction, installation and protection of cables and other elements of outside plant
L.200-L.299: Optical infrastructures
L.250-L.299: General aspects and network design |
| Approval date: |
2012-02-13 |
| Provisional name: | L.oanbs |
| Approval process: | AAP |
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Status: |
Superseded |
| Observation: | Former ITU-T L.90 renumbered as ITU-T L.250 on 2016-02-15 without further modification and without being republished. |
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Maintenance responsibility: |
ITU-T Study Group 15 |
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Further details: |
Patent statement(s)
Development history
[4 related work items in progress]
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ITU-T Supplement
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Title
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Status
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Summary
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Table of contents
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Download
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L Suppl. 4 (04/2016)
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Guidelines for developing a sustainable e-waste management system
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In force
|
here
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here
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here
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L Suppl. 5 (12/2014)
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Life-cycle management of ICT goods
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In force
|
here
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here
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here
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L Suppl. 20 (10/2015)
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Green public ICT procurement
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In force
|
here
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here
|
here
|
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L Suppl. 21 (04/2016)
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Implementation guidance for small- and medium-sized enterprises on information and communication technology supply chain due diligence concerning conflict minerals
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In force
|
here
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here
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here
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L Suppl. 27 (10/2016)
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Supplement on success stories on e-waste management
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In force
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here
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here
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here
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L Suppl. 28 (10/2016)
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Circular economy in information and communication technology; definition of approaches, concepts and metrics
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In force
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here
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here
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here
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L Suppl. 32 (10/2016)
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Supplement for eco-specifications and rating criteria for mobile phones eco-rating programmes
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In force
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here
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here
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here
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L Suppl. 33 (10/2016)
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Assessment of energy consumption of information and communication technology services
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In force
|
here
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here
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here
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L Suppl. 41 (05/2021)
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Requirements on energy efficiency measurement models and the role of artificial intelligence and big data
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In force
|
here
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here
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here
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L Suppl. 42 (05/2021)
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Guidelines on the environmental efficiency of machine learning processes in supply chain management
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In force
|
here
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here
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here
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L Suppl. 43 (05/2021)
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Smart energy saving of 5G base stations: Traffic forecasting and strategy optimization of 5G wireless network energy consumption based on artificial intelligence and other emerging technologies
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In force
|
here
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here
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here
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L Suppl. 44 (05/2021)
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Guidelines on best practices and environment friendly policies for effective information and communication technology deployment methods
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In force
|
here
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here
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here
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L Suppl. 46 (12/2021)
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Definitions and recent trends in circular cities
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In force
|
here
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here
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here
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L Suppl. 47 (07/2022)
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Examples of resource saving within the information and communication technology sector
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In force
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here
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here
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here
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L Suppl. 49 (07/2022)
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Overview on adaptation to climate change for information and communication technology networks
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In force
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here
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here
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here
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L Suppl. 52 (10/2022)
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Computer processing, data management and energy perspective
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In force
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here
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here
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here
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L Suppl. 53 (10/2022)
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Guidelines on the implementation of environmental efficiency criteria for artificial intelligence and other emerging technologies
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In force
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here
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here
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here
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L Suppl. 54 (10/2022)
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Guidance for assessing the greenhouse gas emissions consequences of the financial effects generated by information and communication technology
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In force
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here
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here
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here
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L Suppl. 55 (10/2022)
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Environmental efficiency and impacts on United Nations Sustainable Development Goals of data centres and cloud computing
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In force
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here
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here
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here
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L Suppl. 56 (10/2022)
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Guidelines for connecting cities and communities with the Sustainable Development Goals
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In force
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here
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here
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here
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L Suppl. 58 (12/2023)
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ITU-T L.250 - National experiences for FTTx network architectures
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In force
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here
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here
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here
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| Title |
Approved on |
Download |
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Guide on the use of ITU-T L-series Recommendations related to optical technologies for outside plant
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2022
|
here
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Guide on the use of ITU-T L-series Recommendations related to optical technologies for outside plant
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2020
|
here
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Partnering for solutions: ICTs in Smart Water Management
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2014
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here
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Resilient pathways: the adaptation of the ICT sector to climate change
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2014
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here
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Greening ICT Supply Chains – Survey on Conflict Minerals Due Diligence Initiatives
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2012
|
here
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Review of Mobile Handset Eco-Rating Schemes
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2012
|
here
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Boosting Energy Efficiency through Smart Grids
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2012
|
here
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