| 支持多种共享业务（如POTS、ISDN和xDSL）的多对铜网线缆 |
ITU-T L.19建议书描述了关于业务和系统的一些总的考虑事项，例如 接入网支持的ISDN和xDSL，也给出了对于数字市内线路特性的一些要求，作为有助于给用户提供优质服务的一个因素。此外，还描述了采用多对铜线网络电缆支持ISDN/xDSL之类的共享多业务的一些问题，这次修订对ITU-T L.19建议书进行了更新，包含了最近新的或者修订的关于ADSL2 （ITU-T G.992.3，ITU-T G.992.4）、ADSL2plus （ITU-T G.992.5）和VDSL （ITU-T G.993.1）的建议书。 |
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| Citation: |
https://handle.itu.int/11.1002/1000/10837 |
| 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 |
| Approval date: |
2010-05-29 |
| Provisional name: | L.dsl |
| Approval process: | AAP |
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Status: |
In force |
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Maintenance responsibility: |
ITU-T Study Group 5 |
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Further details: |
Patent statement(s)
Development history
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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
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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
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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
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here
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here
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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
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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
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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
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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
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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
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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
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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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| 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
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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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Guide on the use of ITU-T L-series Recommendations
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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
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here
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Review of Mobile Handset Eco-Rating Schemes
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2012
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here
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Boosting Energy Efficiency through Smart Grids
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2012
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here
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Guide on the use of ITU-T L-series Recommendations
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2008
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here
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Application of computers and microprocessors to the construction, installation and protection of telecommunication cables
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1999
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here
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Outside plant technologies for public networks
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1991
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here
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Jointing of Telecommunication Cable conductors
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1982
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here
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Jointing of Plastic-sheathed Cables
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1978
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here
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