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ANSI-TIA-EIA-568-B.2-1Cat.6June202002
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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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5
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2
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1
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
TIA/EIA Engineering Standards and Publications are designed to serve the public interest
through eliminating misunderstandings between manufacturers and purchasers, facilitating
interchangeability and improvement of products, and assisting the purchaser in selecting and
obtaining with minimum delay the proper product for his particular need. Existence of such
Standards and Publications shall not in any respect preclude any member or nonmember of
TIA/EIA from manufacturing or selling products not conforming to such Standards and
Publications, nor shall the existence of such Standards and Publications preclude their voluntary
use by those other than TIA/EIA members, whether the standard is to be used either domestically
or internationally.
Standards and Publications are adopted by TIA/EIA in accordance with the American National
Standards Institute (ANSI) patent policy. By such action, TIA/EIA does not assume any liability
to any patent owner, nor does it assume any obligation whatever to parties adopting the Standard
or Publication.
This Standard does not purport to address all safety problems associated with its use or all
applicable regulatory requirements. It is the responsibility of the user of this Standard to
establish appropriate safety and health practices and to determine the applicability of regulatory
limitations before its use.
(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
2500 Wilson Boulevard
Arlington, VA 22201
PRICE: Please refer to current Catalog of
EIA ELECTRONIC INDUSTRIES ALLIANCE STANDARDS and ENGINEERING
PUBLICATIONS or call Global Engineering Documents, USA and Canada
(1-800-854-7179) International (303-397-7956)
All rights reserved
Printed in U.S.A.
PLEASE!
DON'T VIOLATE
THE
LAW!
This document is copyrighted by the TIA and may not be reproduced without
permission.
Organizations may obtain permission to reproduce a limited number of copies
through entering into a license agreement. For information, contact:
Global Engineering Documents
15 Inverness Way East
Englewood, CO 80112-5704 or call
U.S.A. and Canada 1-800-854-7179, International (303) 397-7956
NOTICE OF DISCLAIMER AND LIMITATION OF LIABILITY
The document to which this Notice is affixed has been prepared by one or more Engineering
Committees of the Telecommunications Industry Association ( “TIA”). TIA is not the author of the
document contents, but publishes and claims copyright to the document pursuant to licenses and
permission granted by the authors of the contents.
TIA Engineering Committees are expected to conduct their affairs in accordance with the
TIA Engineering Manual ( “Manual”), the current and predecessor versions of which are available at
http://www.tiaonline.org/standards/sfg/engineering_manual.cfm. TIA ’s function is to administer the
process, but not the content, of document preparation in accordance with the Manual and, when
appropriate, the policies and procedures of the American National Standards Institute ( “ANSI”).
THE USE OR PRACTICE OF CONTENTS OF THIS DOCUMENT MAY INVOLVE THE
USE OF INTELLECTUAL PROPERTY RIGHTS (“IPR”), INCLUDING PENDING OR ISSUED
PATENTS, OR COPYRIGHTS, OWNED BY ONE OR MORE PARTIES. TIA MAKES NO
SEARCH OR INVESTIGATION FOR IPR. WHEN IPR CONSISTING OF PATENTS AND
PUBLISHED PATENT APPLICATIONS ARE CLAIMED AND CALLED TO TIA’S
ATTENTION, A STATEMENT FROM THE HOLDER THEREOF IS REQUESTED, ALL IN
ACCORDANCE WITH THE MANUAL. TIA TAKES NO POSITION WITH REFERENCE TO,
AND DISCLAIMS ANY OBLIGATION TO INVESTIGATE OR INQUIRE INTO, THE SCOPE
OR VALIDITY OF ANY CLAIMS OF IPR.
ALL WARRANTIES, EXPRESS OR IMPLIED, ARE DISCLAIMED, INCLUDING
WITHOUT LIMITATION, ANY AND ALL WARRANTIES CONCERNING THE ACCURACY
OF THE CONTENTS, ITS FITNESS OR APPROPRIATENESS FOR A PARTICULAR PURPOSE
OR USE, ITS MERCHANTABILITY AND ITS NON-INFRINGEMENT OF ANY THIRD
PARTY’S INTELLECTUAL PROPERTY RIGHTS. TIA EXPRESSLY DISCLAIMS ANY AND
ALL RESPONSIBILITIES FOR THE ACCURACY OF THE CONTENTS AND MAKES NO
REPRESENTATIONS OR WARRANTIES REGARDING THE CONTENT’S COMPLIANCE
WITH ANY APPLICABLE STATUTE, RULE OR REGULATION.
TIA SHALL NOT BE LIABLE FOR ANY AND ALL DAMAGES, DIRECT OR
INDIRECT, ARISING FROM OR RELATING TO ANY USE OF THE CONTENTS CONTAINED
HEREIN, INCLUDING WITHOUT LIMITATION ANY AND ALL INDIRECT, SPECIAL,
INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF
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ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD
NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS.
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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