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首页ANSI-TIA-EIA-568-B.2-1Cat.6June202002
ANSI-TIA-EIA-568-B.2-1Cat.6June202002

ANSI-TIA-EIA-568-B.2-1_Cat.6_June_20_2002 ANSI/TIA/EIA-568B.2-1是六类的标准, 2002年6月正式通过的六类布线标准成为了TIA/EIA-568B标准的附录,它被正式命名为TIA/EIA-568B.2-1。该标准已被附录,使其更加完善。 TIA/EIA-568B六类布线系统标准要点:六类系统要求测试到250MHz频率。六类系统要求在200MHz时综合衰减串扰比(PS-ACR)≥0(即噪声干扰不超过有用的信号)。
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ANSI/TIA/EIA-568-B.2-1-2002
Approved: June 20, 2002
TIA/EIA
STANDARD
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Commercial Building
Telecommunications Cabling Standard
Part 2: Balanced Twisted Pair
Cabling Components
Addendum 1 – Transmission
Performance Specifications for 4-pair
100 ? Category 6 Cabling
TIA/EIA-568-B.2-1
(Addendum No. 1 to TIA/EIA-568-B.2)
JUNE 2002
TELECOMMUNICATIONS INDUSTRY ASSOCIATION
The Telecommunications Industry Association
represents the communications sector of

NOTICE
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This Standard does not purport to address all safety problems associated with its use or all
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establish appropriate safety and health practices and to determine the applicability of regulatory
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(From Standards Proposal Nos.3-3727-AD1-B, 3-3727-AD1-B-1, and 3-3727-AD1-B-2, formulated
under the cognizance of the TIA TR-42.7 Subcommittee on Telecommunications Copper Cabling
Systems.)
Published by
TELECOMMUNICATIONS INDUSTRY ASSOCIATION 2002
Standards and Technology Department
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TIA/EIA-568-B.2-1
i
TRANSMISSION PERFORMANCE SPECIFICATIONS
FOR
4-PAIR 100 ? CATEGORY 6 CABLING
TABLE OF CONTENTS
1 INTRODUCTION.......................................................................................................................1
2 PURPOSE AND SCOPE...........................................................................................................1
3 NORMATIVE REFERENCES....................................................................................................2
4 DEFINITIONS, ACRONYMS & ABBREVIATIONS....................................................................2
4.1 Definitions.......................................................................................................................... 2
4.2 Acronyms and abbreviations............................................................................................. 3
5 TEST CONFIGURATIONS........................................................................................................3
5.1 Component test configurations ......................................................................................... 3
5.2 Cabling test configurations................................................................................................ 3
6 COMPONENTS.........................................................................................................................4
6.1 Recognized cable.............................................................................................................. 4
6.1.1 Horizontal cable ........................................................................................................ 4
6.1.2 Backbone cable ........................................................................................................ 5
6.1.3 Bundled and hybrid cable.......................................................................................... 5
6.2 Recognized connecting hardware..................................................................................... 5
6.3 Cords................................................................................................................................. 5
7 TRANSMISSION REQUIREMENTS.........................................................................................6
7.1 Insertion loss..................................................................................................................... 6
7.1.1 Cable insertion loss.................................................................................................... 6
7.1.2 Connecting hardware insertion loss........................................................................... 7
7.1.3 Cabling insertion loss................................................................................................. 8
7.2 NEXT loss....................................................................................................................... 10
7.2.1 Pair-to-pair NEXT loss............................................................................................. 10
7.2.1.1 Cable pair-to-pair NEXT loss............................................................................ 10
7.2.1.2 Connecting hardware pair-to-pair NEXT loss................................................... 11
7.2.1.3 Work area, equipment, and patch cord pair-to-pair NEXT loss........................ 11
7.2.1.4 Cabling pair-to-pair NEXT loss......................................................................... 13
7.2.2 Power sum NEXT loss............................................................................................ 14
7.2.2.1 Cable power sum NEXT loss............................................................................ 14
7.2.2.2 Cabling power sum NEXT loss......................................................................... 15
7.3 ELFEXT and FEXT loss.................................................................................................. 17
7.3.1 Pair-to-pair ELFEXT................................................................................................. 17
7.3.1.1 Cable pair-to-pair ELFEXT ............................................................................... 17
7.3.1.2 Connecting hardware pair-to-pair FEXT loss.................................................... 18
7.3.1.3 Cabling pair-to-pair ELFEXT............................................................................. 18
7.3.2 Power sum ELFEXT ................................................................................................ 19
7.3.2.1 Cable power sum ELFEXT............................................................................... 20
7.3.2.2 Cabling power sum ELFEXT ............................................................................ 20
7.4 Return loss...................................................................................................................... 21
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