TIA-568-B 1-4-2003 Commercial Building Telecommunications Cabling Standard Part 1 General Requirements Addendum 4 - Recognition of Category 6 and 850 nm Laser-Optimized 50 125 um Mru.pdf

1、 TIA STANDARD ANSI/TIA-568-B.1-4-2003 Approved: February 26, 2003 Commercial Building Telecommunications Cabling Standard Part 1: General Requirements Addendum 4 Recognition of Category 6 and 850 nm Laser-Optimized 50/125 m Multimode Optical Fiber Cabling TIA-568-B.1-4 (Addendum No. 4 to TIA/EIA-568

2、-B.1) FEBRUARY 2003 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association with the Electronic Industries Alliance Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitte

3、d without license from IHS-,-,-NOTICE TIA 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

4、 and obtaining with minimum delay the proper product for their particular need. The existence of such Standards and Publications shall not in any respect preclude any member or non-member of TIA from manufacturing or selling products not conforming to such Standards and Publications. Neither shall t

5、he existence of such Standards and Publications preclude their voluntary use by Non-TIA members, either domestically or internationally. Standards and Publications are adopted by TIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, TIA does not assum

6、e any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the Standard or Publication. Further details of the development process are available in the TIA Engineering Manual, located at http:/www.tiaonline.org/standards/sfg/engineering_manual.cfm This Standa

7、rd 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

8、. (From Standards Proposal No. 3-4425-AD4, formulated under the cognizance of the TIA TR-42.1 Subcommittee on Commercial Building Telecommunications Cabling.) Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION 2003 Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 U.S.A

9、. PRICE: Please refer to current Catalog of TIA TELECOMMUNICATIONS INDUSTRY ASSOCIATION STANDARDS AND ENGINEERING PUBLICATIONS or call Global Engineering Documents, USA and Canada (1-800-854-7179) International (303-397-7956) or search online at http:/www.tiaonline.org/standards/search_n_order.cfm A

10、ll rights reserved Printed in U.S.A. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTICE OF DISCLAIMER AND LIMITATION OF LIABILITY The document to which this Notice is affixe

11、d (the “Document”) has been prepared by one or more Engineering Committees or Formulating Groups 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 t

12、he authors of the contents. TIA Engineering Committees and Formulating Groups 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. T

13、IAs 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”). TIA does not evaluate, test, verify or investigate the information, accuracy

14、, soundness, or credibility of the contents of the Document. In publishing the Document, TIA disclaims any undertaking to perform any duty owed to or for anyone. The use or practice of contents of this Document may involve the use of intellectual property rights (“IPR”), including pending or issued

15、patents, or copyrights, owned by one or more parties. TIA makes no search or investigation for IPR. When IPR consisting of patents and published pending patent applications are claimed and called to TIAs attention, a statement from the holder thereof is requested, all in accordance with the Manual.

16、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. TIA does not enforce or monitor compliance with the contents of the Document. TIA does not certify, inspect, test or otherwise investigate products, desig

17、ns or services or any claims of compliance with the contents of the Document. 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 MERCHANT

18、ABILITY AND ITS NON-INFRINGEMENT OF ANY THIRD PARTYS INTELLECTUAL PROPERTY RIGHTS. TIA EXPRESSLY DISCLAIMS ANY AND ALL RESPONSIBILITIES FOR THE ACCURACY OF THE CONTENTS AND MAKES NO REPRESENTATIONS OR WARRANTIES REGARDING THE CONTENTS COMPLIANCE WITH ANY APPLICABLE STATUTE, RULE OR REGULATION, OR TH

19、E SAFETY OR HEALTH EFFECTS OF THE CONTENTS OR ANY PRODUCT OR SERVICE REFERRED TO IN THE DOCUMENT OR PRODUCED OR RENDERED TO COMPLY WITH THE CONTENTS. 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 W

20、ITHOUT LIMITATION ANY AND ALL INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF BUSINESS, LOSS OF PROFITS, LITIGATION, OR THE LIKE), WHETHER BASED UPON BREACH OF CONTRACT, BREACH OF WARRANTY, TORT (INCLUDING NEGLIGENCE), PRODUCT LIABILITY OR OTHERWISE, EVEN IF ADV

21、ISED OF THE POSSIBILITY OF SUCH DAMAGES. THE FOREGOING NEGATION OF DAMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. Copyright Telecommunications Industry Association Provided by IHS under license with EIANo

22、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-PLEASE! DONT VIOLATE THE LAW! This document is copyrighted by the TIA and may not be reproduced without prior permission of the Telecommunications Industry Association. For information consult our website at http:/www.t

23、iaonline.org/about/faqDetail.cfm?id=18 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 U.S.A. or call U.S.A. and Canada 1-800-8

24、54-7179, International (303) 397-7956 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-568-B.1-4 Recognition of Category 6 and 850 nm Laser-Optimized 50/125 m Multimode Optic

25、al Fiber Cabling TABLE OF CONTENTS 1 INTRODUCTION 1 2 CLAUSE REVISIONS.1 iCopyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-568-B.1-4 iiCopyright Telecommunications Industry A

26、ssociation Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-568-B.1-4 1 INTRODUCTION The purpose of this addendum is to recognize balanced twisted pair category 6 cabling and 850 nm laser-optimized 50/125 m multimode optical

27、 fiber cable by revising sub-clauses 4.4, 4.5, 5.3 and 11.2.2 of TIA/EIA-568-B.1. These revisions are identified in the following text with additions shown in bold italics and deletions shown as strikeout. 2 CLAUSE REVISIONS 4.4 Recognized cables Two types of cables are recognized and recommended fo

28、r use in the horizontal cabling system. These cables are: a) four-pair 100-ohm category 3 (ANSI/TIA/EIA-568-B.2), category 5e (ANSI/TIA/EIA-568-B.2) or category 6 (ANSI/TIA/EIA-568-B.2-1) unshielded twisted-pair (UTP) or screened twisted-pair (ScTP) cables (ANSI/TIA/EIA-568-B.2) b) two or more optic

29、al fiber multimode cable, either 62.5/125 m or 50/125 m (ANSI/TIA/EIA-568-B.3 or ANSI/TIA/EIA-568-B.3-1) At this time, 150-ohm shielded twisted-pair (STP-A) cable is a recognized media type (ANSI/TIA/EIA-568-B.2). It is not, however, recommended for new cabling installations and is expected to be re

30、moved from the next revision of this Standard. Recognized cables, associated connecting hardware, jumpers, patch cords, equipment cords, and work area cords shall meet all applicable requirements specified in ANSI/TIA/EIA-568-B.2, ANSI/TIA/EIA-568-B.2-1, and ANSI/TIA/EIA-568-B.3 and ANSI/TIA/EIA-568

31、-B.3-1. When bundled and hybrid cables are used for horizontal cabling, each cable type shall be recognized and meet the transmission and color-code specifications for that cable type given in ANSI/TIA/EIA-568-B.2, ANSI/TIA/EIA/-568-B.2-1, and ANSI/TIA/EIA-568-B.3 and ANSI/TIA/EIA-568-B.3-1. Additio

32、nally, bundled or hybrid copper cables shall meet the bundled or hybrid cable requirements in ANSI/TIA-568-B.2. These requirements apply to hybrid cables and bundled cables assembled prior to installation, sometimes referred to as loomed, speed-wrap, or whip cable constructions. NOTES 1 Annex C prov

33、ides a brief description of a number of other horizontal cables that have been used in telecommunications. These cables, as well as others, may be effective for specific applications. Although these cables are not part of the requirements of this Standard, they may be used in addition to the minimum

34、 requirements of this Standard. 2 Hybrid cables consisting of optical fiber and copper conductors are sometimes referred to as composite cables. 1Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without lice

35、nse from IHS-,-,-TIA-568-B.1-4 4.5 Choosing types of cabling This Standard recognizes the importance of both voice and data telecommunications in a commercial building. A minimum of two telecommunications outlet/connectors shall be provided for each individual work area as shown in figure 4-1. One t

36、elecommunications outlet/connector may be associated with voice and the other with data. Consideration should be given to installing additional outlets/connectors based on present and projected needs. The two telecommunications outlet/connectors shall be configured as: a) One telecommunications outl

37、et/connector shall be supported by a four-pair 100-ohm cable, category 3 or higher (category 5e or category 6 recommended) as specified in ANSI/TIA/EIA-568-B.2 and ANSI/TIA/EIA-568-B.2-1. b) The other/second telecommunications outlet/connector(s) shall be supported by a minimum of one of the followi

38、ng horizontal media. This media choice should be based on present and projected needs. 1) Four-pair 100-ohm cable, either category 5e or category 6, cable as specified in ANSI/TIA/EIA-568-B.2 and ANSI/TIA/EIA-568-B.2-1. 2) Two-fiber multimode optical fiber cable, either 62.5/125 m or 50/125 m as spe

39、cified in ANSI/TIA/EIA-568-B.3 and ANSI/TIA/EIA-568-B.3-1 ANSI/TIA/EIA-568-B.2, ANSI/TIA/EIA-568-B.2-1 and ANSI/TIA/EIA-568-B.3 requirements on compatible connectors shall be met. See subclause 6.2 for work area outlet/connector specifications. 5.3 Recognized cables Due to the wide range of services

40、 and site sizes where backbone cabling will be used, more than one transmission medium is recognized. This Standard specifies transmission media, which shall be used individually or in combination in the backbone cabling. The recognized media are: a) 100-ohm category 3, category 5e or category 6 twi

41、sted-pair cable (ANSI/TIA/EIA-568-B.2 and ANSI/TIA/EIA-568-B.2-1) b) multimode optical fiber cable, either 62.5/125 mm or 50/125 mm (ANSI/TIA/EIA-568-B.3 and ANSI/TIA/EIA-568-B.3-1) c) singlemode optical fiber cable (ANSI/TIA/EIA-568-B.3) Recognized cables, associated connecting hardware, jumpers, p

42、atch cords, equipment cords, and work area cords shall meet all applicable requirements specified in ANSI/TIA/EIA-568-B.2, ANSI/TIA/EIA-568-B.2-1, and ANSI/TIA/EIA-568-B.3, and ANSI/TIA/EIA-568-B.3-1. NOTES 1 Crosstalk between individual, unshielded twisted-pairs may affect the transmission performa

43、nce of multipair copper cables. Annex B provides some shared sheath guidelines for multipair cables. 2 Annex C provides a brief description of a number of other backbone cables that have been used in telecommunications. These cables, as well as others, may be effective for specific applications. Alt

44、hough these cables are not part of the requirements of this Standard, they may be used in addition to the minimum requirements of this Standard. 2Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without lice

45、nse from IHS-,-,-TIA-568-B.1-4 3 See subclause 5.5 for backbone cabling distance limitations. 5.5.1 Intra and interbuilding distances The maximum supportable distances are application and media dependent. The maximum backbone distances specified in figure 5-2 are guidelines based on voice transmissi

46、on for balanced twisted-pair cabling (maximum 800 m 2624 ft) and the applications listed in annex E for optical fiber cabling. The distances given are for the total backbone channel length, including backbone cable, patch cords or jumpers, and equipment cable. To minimize cabling distances, it is of

47、ten advantageous to locate the main cross-connect near the center of a site. Cabling installations that exceed these distance limits may be divided into areas, each of which can be supported by backbone cabling within the scope of this Standard. Interconnections between the individual areas, which a

48、re outside the scope of this Standard, may be accomplished by employing equipment and technologies normally used for wide area applications. The length of category 3 multipair balanced 100-ohm backbone cabling, that supports applications up to 16 MHz, should be limited to a total of 90 m (295 ft). T

49、he length of category 5e multipair balanced 100-ohm backbone cabling, that supports data applications up to 100 MHz, should be limited to a total distance of 90 m (295 ft). The length of category 6 multipair balanced 100-ohm backbone cabling, that supports data applications up to 250 MHz, should be limited to a total distance of 90 m (295 ft). The 90 m (295 ft) distance allows for an additional 5 m (16 ft) at each en