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ITU-T G.992.3 (04/2009)
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ITU-T G.992.3 (04/2009)
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非对称数字用户线收发信机2(ADSL2)
ITU-T G.992.3建议书描述在一对金属双绞线上的非对称数字用户线(ADSL)收发信机,它使得在网络的局端(ATU-C)和客户端(ATU-R)之间进行高速数据传输成为可能。它根据不同的环境,规定了与其他两种业务之一相结合的或没有基础业务的下面多种帧承载信道:1) ADSL与话音频带业务同时在同一对线上传输;2) ADSL与ISDN(附录I或II/G.961[1])业务同时在同一对线上传输;3) 没有基础业务的ADSL传输,它对同一线束电缆中话音频带业务之上部署ADSL进行优化;4) 没有基础业务的ADSL传输,它对同一线束电缆中ISDN业务之上部署ADSL进行优化;5) 在同一对线上,对延长传送距离的ADSL2有特殊要求的ADSL与话音频带业务同时传输;6) 在同一对线上,扩大上行带宽的ADSL与话音频带业务同时传输;7) 在同一对线上,ADSL与话音频带业务同时传输,并且在相邻一对线中有TCM-ISDN(ITU-T G.961建议书附录III)业务的环境中工作。本建议书规定了非对称数字用户线(ADSL)与金属环路的接口的物理层特性。制订本建议书是为了有助于保证客户端(ATU-R)处和网络局端(ATU-C)处的各ADSL传输单元的适当地相互接口和互通,而且还为了规定各单元的传送能力。当这两个单元由不同的生产厂家生产和不同的供货商供货时,必须保证工作正常。使用一对双绞电话线将ATU-C与ATU-R连接起来。ADSL的传输单元必须处理各种的线对特性和典型的传输损伤(如串音和噪声)。ADSL传输单元可以同时传送所有下面的各种信息:许多下行帧承载信道、许多上行帧承载信道、基带POTS/ISDN双工信道、ADSL线路用于编帧、误码控制、操作和维护的开销。系统支持的净数据速率范围为下行最低8 Mbit/s和上行最低800 kbit/s。支持下行净数据速率高于8 Mbit/s和支持上行净数据速率高于800 kbit/s的要求是可选项。本建议书规定了几种可选的能力和特性:• STM和/或ATM和/或包的传送;• 传送网络定时参考信号;• 多等待时间路径;• 多帧承载信道;
Citation:
https://handle.itu.int/11.1002/1000/9652
Series title:
G series: Transmission systems and media, digital systems and networks
G.900-G.999: Digital sections and digital line system
G.990-G.999: Metallic access networks
Approval date:
2009-04-22
Provisional name:
G.dmt.x, G.dmt.bis
Approval process:
AAP
Status:
In force
Observation:
Due to its complexity, this Recommendation is published in two files, one containing the core Recommendation and its annexes except Annex C, and the second containing Annex C showing its variations relative to the core text
Maintenance responsibility:
ITU-T Study Group 15
Further details:
Patent statement(s)
Development history
Editions
Related Supplement(s)
Related technical papers and reports
Ed.
ITU-T Recommendation
Status
Summary
Table of Contents
Download
3.8
G.992.3 (2009) Cor. 3 (08/2013)
In force
here
-
here
3.7
G.992.3 (2009) Amd. 5 (10/2012)
In force
here
-
here
3.6
G.992.3 (2009) Amd. 4 (10/2011)
In force
here
here
here
3.5
G.992.3 (2009) Cor. 2 (06/2011)
In force
here
-
here
3.4
G.992.3 (2009) Amd. 3 (11/2010)
In force
here
here
here
3.3
G.992.3 (2009) Amd. 2 (07/2010)
In force
here
-
here
3.2
G.992.3 (2009) Amd. 1 (03/2010)
In force
here
-
here
3.1
G.992.3 (2009) Cor. 1 (11/2009)
In force
here
-
here
3
G.992.3 (04/2009)
In force
here
here
here
2.5
G.992.3 (2005) Amd. 5 (06/2008)
Superseded
here
-
here
2.4
G.992.3 (2005) Amd. 4 (07/2007)
Superseded
here
-
here
2.3
G.992.3 (2005) Amd. 3 (12/2006)
Superseded
here
here
here
2.2
G.992.3 (2005) Amd. 2 (03/2006)
Superseded
here
here
here
2.1
G.992.3 (2005) Amd. 1 (09/2005)
Superseded
here
here
here
2.0
G.992.3 (2005) Err. 1 (06/2007)
Superseded
-
-
here
2
G.992.3 (01/2005)
Superseded
here
here
here
1.6
G.992.3 (2002) Amd. 4 (06/2004)
Superseded
here
here
here
1.5
G.992.3 (2002) Amd. 3 (06/2004)
Superseded
here
-
here
1.4
G.992.3 (2002) Amd. 2 (04/2004)
Superseded
here
here
here
1.3
G.992.3 (2002) Cor. 2 (02/2004)
Superseded
here
-
here
1.2
G.992.3 (2002) Cor. 1 (12/2003)
Superseded
-
here
here
1.1
G.992.3 (2002) Amd. 1 (05/2003)
Superseded
-
-
here
1
G.992.3 (07/2002)
Superseded
here
here
here
ITU-T Supplement
Title
Status
Summary
Table of contents
Download
G Suppl. 4 (12/1972)
Certain methods of avoiding the transmission of excessive noise between interconnected systems
In force
-
-
here
G Suppl. 5 (10/1984)
Measurement of the load of telephone circuits under field conditions
In force
-
-
here
G Suppl. 7 (12/1972)
Loss-frequency response of channel-translating equipment used in some countries for international circuits
In force
here
here
here
G Suppl. 8 (12/1972)
Method proposed by the Belgian telephone administration for interconnection between coaxial and symmetric pair systems
In force
-
-
here
G Suppl. 17 (10/1984)
Group-delay distortion performance of terminal equipment
In force
-
-
here
G Suppl. 19 (10/1984)
Digital crosstalk measurement (method used by the Administrations of France, the Netherlands and Spain)
In force
-
-
here
G Suppl. 22 (10/1984)
Mathematical models of multiplex signals
In force
-
-
here
G Suppl. 26 (10/1984)
Estimating the signal load margin of FDM wideband amplifier equipment and transmission systems
In force
-
-
here
G Suppl. 27 (10/1984)
Interference from external sources
In force
-
-
here
G Suppl. 28 (10/1984)
Application of transmultiplexers, FDM codecs, data-in-voice (DIV) systems and data-over-voice (DOV) systems during the transition from an analogue to a digital network
In force
-
-
here
G Suppl. 32 (11/1988)
Transfer of alarm information on 60-channel transmultiplexing equipment
In force
-
-
here
G Suppl. 34 (11/1988)
Temperature in underground containers for the installation of repeaters
In force
-
-
here
G Suppl. 35 (11/1988)
Guidelines concerning the measurement of wander
In force
-
-
here
G Suppl. 36 (11/1988)
Jitter and wander accumulation in digital networks
In force
-
-
here
G Suppl. 39 (02/2016)
Optical system design and engineering considerations
In force
here
here
here
G Suppl. 40 (07/2024)
Optical fibre and cable Recommendations and standards guideline
In force
here
-
here
G Suppl. 41 (07/2024)
Design guidelines for optical fibre submarine cable systems
In force
here
-
here
G Suppl. 42 (10/2018)
Guide on the use of the ITU-T Recommendations related to optical fibres and systems technology
In force
here
here
here
G Suppl. 43 (02/2011)
Transport of IEEE 10GBASE-R in optical transport networks (OTN)
In force
here
here
here
G Suppl. 44 (06/2007)
Test plan to verify B-PON interoperability
In force
here
here
here
G Suppl. 45 (09/2022)
Power conservation in optical access systems
In force
here
here
here
G Suppl. 46 (05/2009)
G-PON interoperability test plan between optical line terminations and optical network units
In force
here
here
here
G Suppl. 47 (09/2012)
General aspects of optical fibres and cables
In force
here
here
here
G Suppl. 48 (06/2010)
10-Gigabit-capable passive optical networks: Interface between media access control with serializer/deserializer and physical medium dependent sublayers
In force
here
here
here
G Suppl. 49 (09/2020)
Rogue optical network unit (ONU) considerations
In force
here
here
here
G Suppl. 50 (09/2011)
Overview of digital subscriber line Recommendations
In force
here
here
here
G Suppl. 51 (06/2017)
Passive optical network protection considerations
In force
here
here
here
G Suppl. 52 (09/2012)
Ethernet ring protection switching
In force
here
here
here
G Suppl. 53 (12/2014)
Guidance for Ethernet OAM performance monitoring
In force
here
here
here
G Suppl. 54 (07/2015)
Ethernet linear protection switching
In force
here
here
here
G Suppl. 55 (12/2023)
Radio-over-fibre (RoF) technologies and their applications
In force
here
here
here
G Suppl. 56 (02/2016)
OTN transport of CPRI signals
In force
here
here
here
G Suppl. 57 (07/2015)
Smart home profiles for 6LoWPAN devices
In force
here
here
here
G Suppl. 59 (02/2018)
Guidance on optical fibre and cable reliability
In force
here
here
here
G Suppl. 60 (09/2016)
Ethernet linear protection switching with dual node interconnection
In force
here
here
here
G Suppl. 62 (02/2018)
Gfast certification
In force
here
here
here
G Suppl. 64 (02/2018)
PON transmission technologies above 10 Gb/s per wavelength
In force
here
here
here
G Suppl. 65 (10/2018)
Simulations of transport of time over packet networks
In force
here
here
here
G Suppl. 66 (09/2020)
5G wireless fronthaul requirements in a passive optical network context
In force
here
here
here
G Suppl. 67 (07/2019)
Application of optical transport network Recommendations to 5G transport
In force
here
here
here
G Suppl. 68 (12/2023)
Synchronization operations, administration and maintenance requirements
In force
here
here
here
G Suppl. 69 (09/2020)
Migration of a pre-standard network to a metro transport network
In force
here
here
here
G Suppl. 70 (09/2020)
Supplement on sub 1 Gbit/s services transport over optical transport network
In force
here
here
here
G Suppl. 71 (12/2023)
Optical line termination capabilities for supporting cooperative dynamic bandwidth assignment
In force
here
here
here
G Suppl. 72 (04/2021)
Modelling consideration for optical media networks
In force
here
here
here
G Suppl. 73 (10/2021)
Influencing factors on quality of experience for multiview video (MVV) services
In force
here
here
here
G Suppl. 74 (12/2021)
Network slicing in a passive optical network context
In force
here
here
here
G Suppl. 75 (12/2021)
5G small cell backhaul/midhaul over TDM-PON
In force
here
here
here
G Suppl. 76 (12/2021)
Optical transport network security
In force
here
here
here
G Suppl. 77 (06/2022)
Supplement 77 to ITU-T G-series of Recommendations - Influencing factors on quality of experience (QoE) for video customized alerting tone (CAT) and video customized ringing signal (CRS) services
In force
here
here
here
G Suppl. 78 (09/2022)
Use case and requirements of fibre-to-the-room for small business applications
In force
here
here
here
G Suppl. 79 (12/2023)
Latency control and deterministic capability over a PON system
In force
here
here
here
G Suppl. 80 (07/2024)
Use case and requirements of fibre-based in-premises networking for home application (FIP4H)
In force
here
-
here
G Suppl. 81 (07/2024)
Practical aspects of PON security
In force
here
-
here
G Suppl. 82 (07/2024)
Enhanced optical line termination with information technology functions
In force
here
-
here
G Suppl. 83 (07/2024)
Supplement on the use of options in PTP profile with full timing support from the network
In force
here
-
here
Title
Approved on
Download
Roadmap for QoS and QoE in the ITU-T Study Group 12 context (TR-RQ)
2023
here
Considerations on the use of GNSS as a primary time reference in telecommunications
2020
here
Use of G.hn in industrial applications
2020
here
DSL story
2010
here
ISDN field trial guidelines
1991
here
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