1、 T568.1-05(ANSI/TIA/EIA-568-B.1-2001)Commercial buildingtelecommunications cabling standard Part 1: General requirements CSA Standard T568.1-05 (ANSI/TIA/EIA-568-B.1-2001) Commercial building telecommunications cabling standard Part 1: General requirements Published in May 2005 by Canadian Standards
2、 Association A not-for-profit private sector organization 5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N61-800-463-6727 416-747-4044 Visit our Online Store at www.ShopCSA.ca Commercial building telecommunications cabling T568.1-05 standard Part 1: General requirements CSA/2 Canadi
3、an Standards Association May 2005 T568.1-05 Commercial building telecommunications cabling standard Part 1: General requirements CSA Preface This is the first edition of CSA T568.1, Commercial building telecommunications cabling standard Part 1: General requirements. It replaces CSA T529-95, Telecom
4、munications Cabling Systems in Commercial Buildings. This Standard is an adoption of the identically titled ANSI/TIA/EIA (American National Standards Institute/Telecommunications Industry Association/Electronic Industries Alliance) Standard 568-B.1-2001 and is the product of the Telecommunications I
5、ndustry Association TR-42 Technical Committee, which included a number of Canadian members in order to ensure that Canadian perspectives and requirements were addressed. It is written in SI (metric) units with yard/pound (imperial) units in parentheses. This Standard has been adopted with no technic
6、al deviations. Where code requirements or regulations necessitate changes from US to Canadian references, they should be made by the user, as follows: (a) Throughout this Standard, replace the term “American” with “Canadian”, as applicable. (b) Throughout this Standard, replace the term “state” with
7、 “provincial or territorial”, as applicable. (c) Throughout this Standard, replace “NEC” with “CE Code, Part I” (Canadian Electrical Code), as applicable. In addition, (i) where reference is made to “conduit”, replace it with “conduit/EMT” (electrical metallic tubing) because, in accordance with the
8、 Canadian Electrical Code, Part I, EMT is not considered a type of conduit; and (ii) the definitions of the following terms are to be taken from the Canadian Electrical Code, Part I: “Bonding”, “Ground”, and “Raceway”. (d) Throughout this Standard, where reference is made to “FCC”, replace it with “
9、CRTC” (Canadian Radio-television and Telecommunications Commission), or “Industry Canada”, as applicable. (e) The following Standards, published by the Canadian Standards Association, are adoptions of TIA/EIA Standards. The requirements of these CSA Standards take precedence over the TIA/EIA Standar
10、ds on which they are based; any reference in CSA T568.1 to the TIA/EIA Standard is to be replaced by a reference to the equivalent Canadian Standard: (i) T568.2-05, Commercial building telecommunications cabling standard Part 2: Balanced twisted-pair cabling components; and (ii) T568.3-05, Optical f
11、iber cabling components standard. (f) Throughout this Standard, replace the term “Listed” with “Approved as applied to electrical equipment”. This Standard was reviewed for Canadian adoption by the CSA Technical Committee on Telecommunications Wiring Systems, under the jurisdiction of the Strategic
12、Steering Committee on Information and Communications Technology, and has been formally approved by the Technical Committee. A list of the members of the Technical Committee is available upon request. May 2005 Commercial building telecommunications cabling T568.1-05 standard Part 1: General requireme
13、nts May 2005 Canadian Standards Association CSA/3 Canadian Standards Association 2005 All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher. TIA/EIA material is reprinted with permission. Inquiries regarding this CSA S
14、tandard should be addressed to Canadian Standards Association 5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N6 1-800-463-6727 416-747-4044 www.csa.ca TIA/EIA STANDARD Commercial Building Telecommunications Cabling Standard Part 1: General Requirements TIA/EIA-568-B.1 (Revision of T
15、IA/EIA-568-A) MAY 2001 TELECOMMUNICATIONS INDUSTRY ASSOCIATION The Telecommunications Industry Association represents the communications sector of ANSI/TIA/EIA-568-B.1-2001 Approved: April 12, 2001 TIA/EIA-568-B.1NOTICE TIA/EIA Engineering Standards and Publications are designed to serve the public
16、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 Publ
17、ications 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
18、 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 o
19、bligation 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 practi
20、ces and to determine the applicability of regulatory limitations before its use. (From Standards Proposal Nos.4425-B, 4425-B-1 and 4425-B-2, formulated under the cognizance of the TIA TR-42 Committee on User Premises Telecommunications Infrastructure.) Published by TELECOMMUNICATIONS INDUSTRY ASSOCI
21、ATION 2001 Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 All rights reserved PLEASE! DONT 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
22、 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 TIA/EIA-568-B.1 i Commercial Building Telecommunications Cabling Standard; Part 1:
23、General Requirements Table of Contents FOREWORD .vi 1 INTRODUCTION 1 1.1 Purpose 1 1.2 Specification of criteria1 1.3 Metric equivalents of US customary units .1 1.4 Life of this Standard1 1.5 Telecommunications cabling system structure2 2 Scope. 4 2.1 Normative references 4 3 DEFINITION OF TERMS, A
24、CRONYMS AND ABBREVIATIONS, AND UNITS OF MEASURE 6 3.1 General .6 3.2 Definition of terms 6 3.3 Acronyms and abbreviations11 3.4 Units of measure12 4 HORIZONTAL CABLING 14 4.1 General .14 4.2 Topology .14 4.3 Horizontal distances .15 4.4 Recognized cables .16 4.5 Choosing types of cabling .16 4.6 Gro
25、unding considerations17 5 BACKBONE CABLING. 18 5.1 General .18 5.2 Topology .18 5.2.1 Star topology 18 5.2.2 Accommodation of non-star configurations .19 5.2.3 Cabling directly between telecommunications rooms 19 5.3 Recognized cables .20 5.4 Choosing media .20 5.5 Backbone cabling distances21 5.5.1
26、 Intra and interbuilding distances 21 TIA/EIA-568-B.1 ii 5.5.2 Main cross-connect to entrance facility22 5.5.3 Cross-connections.23 5.5.4 Cabling to telecommunications equipment .23 5.6 Grounding and bonding considerations .23 6 WORK AREA. 24 6.1 General .24 6.2 Telecommunications outlet/connector 2
27、4 6.2.1 100-Ohm balanced twisted-pair telecommunications outlet/connector.24 6.2.2 Optical fiber telecommunications outlet connector 25 6.3 Work area cords 25 6.4 Open office cabling.26 6.4.1 Multi-user telecommunications outlet assembly .26 6.4.1.1 Application planning26 6.4.1.2 Installation practi
28、ces .26 6.4.1.3 Administration 27 6.4.1.4 Maximum lengths for copper cabling.27 6.4.1.5 Horizontal distances of optical fiber links (long work area cables)28 6.4.2 Consolidation point 28 6.4.2.1 Application planning28 6.4.2.2 Installation practices .29 6.4.2.3 Administration 29 7 TELECOMMUNICATIONS
29、ROOMS. 30 7.1 General .30 7.2 Design 30 7.3 Functions 30 7.4 Cross-connections and interconnections 30 8 EQUIPMENT ROOMS 32 8.1 General .32 8.2 Design 32 8.3 Functions 32 8.4 Cabling practices .32 9 ENTRANCE FACILITIES 33 9.1 General .33 9.2 Design 33 9.3 Functions 33 9.3.1 Network demarcation point
30、 .33 9.3.2 Electrical protection.33 9.3.3 Bonding and grounding.33 9.3.4 Entrance facility connections 33 10 CABLING INSTALLATION REQUIREMENTS 34 10.1 General34 10.1.1 Placement of horizontal and backbone cables 34 TIA/EIA-568-B.1 iii 10.2 Balanced 100-ohm twisted-pair cabling (UTP and ScTP).34 10.2
31、.1 Minimum bend radius.34 10.2.1.1 Minimum horizontal cable bend radius 34 10.2.1.2 Minimum backbone cable bend radius 34 10.2.1.3 Minimum patch cable bend radius 34 10.2.2 Maximum pulling tension34 10.2.3 Connecting hardware termination 34 10.2.4 Patch cords, equipment cords, work area cords, and j
32、umpers .35 10.2.5 100-Ohm ScTP grounding requirements.35 10.3 Optical fiber cabling 35 10.3.1 Minimum bend radius and maximum pulling tension .35 10.3.2 Connecting hardware termination and polarity.35 10.3.3 Patch cords, equipment cords and work area cords 37 10.4 150-Ohm shielded twisted-pair cabli
33、ng38 10.4.1 Minimum bend radius.38 10.4.2 Maximum pulling tension38 10.4.3 Connecting hardware termination 38 11 CABLING TRANSMISSION PERFORMANCE AND TEST REQUIREMENTS 39 11.1 General39 11.2 100-Ohm twisted-pair transmission performance and field test requirements.39 11.2.1 Purpose and scope39 11.2.
34、2 Applicability 39 11.2.3 Test configurations 39 11.2.4 Test parameters 41 11.2.4.1 General41 11.2.4.2 Wire map.42 11.2.4.3 Length.43 11.2.4.3.1 Physical length vs. electrical length 43 11.2.4.3.2 Length requirements43 11.2.4.4 Insertion loss43 11.2.4.5 Pair-to-pair NEXT loss .45 11.2.4.6 PSNEXT los
35、s .46 11.2.4.7 Pair-to Pair ELFEXT and FEXT loss parameters.47 11.2.4.8 Cabling PSELFEXT .49 11.2.4.9 Cabling return loss51 11.2.4.10 Propagation delay52 11.2.4.11 Delay skew.52 11.3 Optical fiber transmission performance and test requirements.52 11.3.1 Purpose52 11.3.2 Link segment 53 11.3.3 Link s
36、egment performance .53 11.3.3.1 Horizontal link measurement54 11.3.3.2 Backbone link measurement54 11.3.3.3 Centralized optical fiber link measurement 55 11.3.3.4 Link attenuation equation and graphs55 ANNEX A (NORMATIVE) CENTRALIZED OPTICAL FIBER CABLING. 58 A.1 Introduction58 A.2 Applicability.58
37、TIA/EIA-568-B.1 iv A.3 General guidelines58 ANNEX B (INFORMATIVE) SHARED SHEATH GUIDELINES FOR MULTIPAIR UTP CABLES 61 B.1 General .61 B.2 Shared sheath guidelines 61 ANNEX C (INFORMATIVE) OTHER CABLE SPECIFICATIONS. 62 C.1 General .62 C.2 Horizontal cabling.62 C.2.1 Multipair 100-ohm twisted-pair c
38、ables 62 C.2.2 75-Ohm coaxial cable 63 C.2.3 50-Ohm coaxial cable 63 C.3 Backbone cabling.63 C.3.1 100-Ohm STP cable 63 C.3.2 Other multimode optical fiber cables63 C.3.3 75-Ohm coaxial cable 63 C.3.4 50-Ohm coaxial cable 63 ANNEX D (INFORMATIVE) CATEGORY 5 CABLING TRANSMISSION 64 D.1 General .64 D.
39、2 Measurement precautions .64 D.3 Test configurations .64 D.4 Test parameters .65 D.4.1 Wire map65 D.4.2 Length65 D.4.3 Insertion loss 65 D.4.4 Pair-to-pair NEXT loss65 D.4.5 Cabling return loss.67 D.4.6 Channel and basic link pair-to-pair ELFEXT 68 D.4.7 Channel and basic link PSELFEXT69 D.4.8 Prop
40、agation delay69 D.4.9 Delay skew.69 D.4.10 Cabling (field) measurement procedures .69 D.4.10.1 Test equipment cords and connectors 69 D.4.11 Field failure mitigation procedures 70 ANNEX E (INFORMATIVE) OPTICAL FIBER APPLICATIONS SUPPORT INFORMATION. 71 E.1 General .71 E.2 Supportable distances and c
41、hannel attenuation.71 ANNEX F (INFORMATIVE) BIBLIOGRAPHY 75 List of Tables Table 6-1 Maximum length of horizontal and work area cables 27 Table 11-1 Insertion loss 20 C for channel test configuration 44 Table 11-2 Insertion loss 20 C for permanent link test configuration 44 TIA/EIA-568-B.1 v Table 1
42、1-3 Pair-to-pair NEXT loss for channel test configuration (worst pair-to-pair) . 45 Table 11-4 Pair-to-pair NEXT loss for permanent link test configuration (worst pair-to-pair) . 46 Table 11-5 Category 5e channel PSNEXT loss 47 Table 11-6 Category 5e permanent link PSNEXT loss 47 Table 11-7 Category
43、 5e channel pair-to-pair ELFEXT, worst pair-to-pair 48 Table 11-8 Category 5e permanent link pair-to-pair ELFEXT, worst pair-to-pair 48 Table 11-9 Category 5e channel PSELFEXT 49 Table 11-10 Category 5e permanent link PSELFEXT 49 Table 11-11 Category 5e channel return loss. 51 Table 11-12 Category 5
44、e channel return loss. 51 Table 11-13 Category 5e permanent link return loss. 52 Table 11-14 Category 5e permanent link return loss. 52 Table 11-15 Mandrel diameters for multimode optical fiber core sizes 54 Table D-1 Category 5 insertion loss 20 C for basic link test configuration. 63 Table D-2 Cat
45、egory 5 pair-to-pair NEXT loss for channel test configuration (worst pair-to-pair) 64 Table D-3 Category 5 pair-to-pair NEXT loss for basic link test configuration (worst pair-to-pair) . 64 Table D-4 Category 5 channel return loss. 65 Table D-5 Category 5 channel return loss representative values 65
46、 Table D-6 Category 5 basic link return loss 66 Table D-7 Category 5 basic link return loss representative values . 66 Table D-8 Category 5 channel and basic link ELFEXT, worst pair-to-pair . 66 Table D-9 Category 5 channel and basic link PSELFEXT . 67 Table E-1 Supported distances and channel atten
47、uation for optical fiber applications by fiber type . 70 Part 2: Balanced Twisted-Pair Cabling Components (ANSI/TIA/EIA-568-B.2) Optical Fiber Cabling Components Standard (ANSI/TIA/EIA-568-B.3) TIA/EIA-568-B.1 viii This Standard is one of a series of technical standards that address building cabling
48、 for telecommunications products and services. These series of standards include: Commercial Building Standard for Telecommunications Pathways and Spaces (ANSI/TIA/EIA-569-A) Residential Telecommunications Cabling Standard (ANSI/TIA/EIA-570-A) Administration Standard for the Telecommunications Infra
49、structure of Commercial Buildings (ANSI/TIA/EIA-606) Commercial Building Grounding and Bonding Requirements for Telecommunications (ANSI/TIA/EIA-607) Customer-Owned Outside Plant Telecommunications Cabling Standard (ANSI/TIA/EIA-758) This Standard contains references to national and international standards. Where appropriate, international standards are used. The following documents may be useful to the reader: National Electrical Safety Code (NESC) (IEEE C 2) National Electrical Code (NEC) (NFPA 70) Useful supplements to this Standar
