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ITU-T G.994.1 (06/2012)
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ITU-T G.994.1 (06/2012)
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数字用户线路收发信机的握手程序
ITU T G.994.1建议书为数字用户线路(DSL)收发器提供了交换能力并选择通用操作模式的灵活机制。她包括了与业务和应用要求有关的参数及与各种DSL收发器有关的参数。该建议书目前是ITU-T G.991.2、ITU-T G.992.1、ITU-T G.992.2、ITU-T G.992.3、ITU-T G.992.4、ITU-T G.992.5、ITU-T G.993.1和ITU-T G.993.2建议书启动程序的一个组成部分。预计未来的DSL建议书也将可适用该建议书。还包括了用于交换非标准信息的规定。
本次修订将所有经过批准的修正和勘误综合进了ITU-T G.994.1建议书的最新版本(版本3)。它也:
– 修正了“诊断模式中对下行虚拟噪声的支持”一节中代码点的分配
– 修正了“完全符合ITU-T G.993.5的ITU-T G.993.2操作”一节中代码点的分配
– 移除了O-P-VECTOR-1-1期间的代码点。
Citation:
https://handle.itu.int/11.1002/1000/11644
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:
2012-06-13
Provisional name:
G.hs
Approval process:
AAP
Status:
Superseded
Observation:
The published text of this Recommendation includes the modifications introduced by ITU-T G. 994.1 (2012) Amd.1 (10/2012).
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
9.1
G.994.1 (2021) Amd. 1 (04/2022)
In force
here
here
here
9
G.994.1 (02/2021)
In force
here
here
here
8.2
G.994.1 (2018) Amd. 2 (02/2021)
Superseded
here
-
here
8.1
G.994.1 (2018) Amd. 1 (03/2020)
Superseded
here
here
here
8
G.994.1 (11/2018)
Superseded
here
here
here
7.2
G.994.1 (2017) Amd. 2 (03/2018)
Superseded
here
here
here
7.1
G.994.1 (2017) Amd. 1 (12/2017)
Superseded
here
here
here
7
G.994.1 (04/2017)
Superseded
here
here
here
6.10
G.994.1 (2012) Amd. 9 (12/2017)
Superseded
here
-
here
6.9
G.994.1 (2012) Amd. 8 (04/2017)
Superseded
here
-
here
6.8
G.994.1 (2012) Cor. 1 (10/2016)
Superseded
here
-
here
6.7
G.994.1 (2012) Amd. 7 (06/2016)
Superseded
here
-
here
6.6
G.994.1 (2012) Amd. 6 (08/2015)
Superseded
here
-
here
6.5
G.994.1 (2012) Amd. 5 (02/2015)
Superseded
here
-
here
6.4
G.994.1 (2012) Amd. 4 (12/2014)
Superseded
here
-
here
6.3
G.994.1 (2012) Amd. 3 (01/2014)
Superseded
here
-
here
6.2
G.994.1 (2012) Amd. 2 (08/2013)
Superseded
here
-
here
6.1
G.994.1 (2012) Amd. 1 (10/2012)
Superseded
here
here
here
6
G.994.1 (06/2012)
Superseded
here
here
here
5.9
G.994.1 (2007) Amd. 8 (12/2011)
Superseded
here
-
here
5.8
G.994.1 (2007) Cor. 1 (10/2011)
Superseded
here
-
here
5.7
G.994.1 (2007) Amd. 7 (04/2011)
Superseded
here
here
here
5.6
G.994.1 (2007) Amd. 6 (11/2010)
Superseded
here
here
here
5.5
G.994.1 (2007) Amd. 5 (04/2010)
Superseded
here
-
here
5.4
G.994.1 (2007) Amd. 4 (06/2009)
Superseded
here
-
here
5.3
G.994.1 (2007) Amd. 3 (03/2009)
Superseded
here
-
here
5.2
G.994.1 (2007) Amd. 2 (04/2008)
Superseded
here
-
here
5.1
G.994.1 (2007) Amd. 1 (11/2007)
Superseded
here
-
here
5
G.994.1 (02/2007)
Superseded
here
here
here
4.4
G.994.1 (2003) Amd. 4 (01/2006)
Superseded
here
-
here
4.3
G.994.1 (2003) Amd. 3 (01/2005)
Superseded
here
-
here
4.2
G.994.1 (2003) Amd. 2 (06/2004)
Superseded
here
-
here
4.1
G.994.1 (2003) Amd. 1 (02/2004)
Superseded
here
here
here
4
G.994.1 (05/2003)
Superseded
here
here
here
3
G.994.1 (07/2002)
Superseded
here
here
here
2
G.994.1 (02/2001)
Superseded
here
here
here
1.1
G.994.1 (1999) Cor. 1 (04/2000)
Superseded
here
-
here
1
G.994.1 (07/1999)
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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