1、 T568.3-1-05(ANSI/TIA/EIA-568-B.3-1-2002)Optical fiber cabling components standard Addendum 1 Additional transmission performance specifications for 50/125 m optical fiber cables CSA Standard T568.3-1-05 (ANSI/TIA/EIA-568-B.3-1-2002) Optical fiber cabling components standard Addendum 1 Additional tr
2、ansmission performance specifications for 50/125 m optical fiber cables Published in May 2005 by Canadian Standards 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.Sho
3、pCSA.ca Optical fiber cabling components standard Addendum 1 Additional T568.3-1-05 transmission performance specifications for 50/125 m optical fiber cables CSA/2 Canadian Standards Association May 2005 T568.3-1-05 Optical fiber cabling components standard Addendum 1 Additional transmission perform
4、ance specifications for 50/125 m optical fiber cables CSA Preface This is the first edition of CSA T568.3-1, Optical fiber cabling components standard Addendum 1 Additional transmission performance specifications for 50/125 m optical fiber cables. This Standard is an adoption of the identically titl
5、ed ANSI/TIA/EIA (American National Standards Institute/Telecommunications Industry Association/Electronic Industries Alliance) Standard 568-B.3-1-2002 and is the product of the Telecommunications Industry Association TR-42 Technical Committee, which included a number of Canadian members in order to
6、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 technical deviations. Where code requirements or regulations necessitate changes from US to Canadian reference
7、s, 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 “provincial or territorial”, as applicable. (c) Throughout this Standard, replace “NEC” with “CE Code,
8、 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 Canadian Electrical Code, Part I, EMT is not considered a type of conduit; and (ii) the definitions of
9、 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 “CRTC” (Canadian Radio-television and Telecommunications Commission), or “Industry Canada”, as applicabl
10、e. (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 Standards on which they are based; any reference in CSA T568.3-1 to the TIA/EIA Standard is to be replaced by
11、a reference to the equivalent Canadian Standard: (i) T568.1-05, Commercial building telecommunications cabling standard Part 1: General requirements; and (ii) T568.3-05, Optical fiber cabling components standard. (f) Throughout this Standard, replace the term “Listed” with “Approved as applied to el
12、ectrical equipment”. Optical fiber cabling components standard Addendum 1 Additional T568.3-1-05 transmission performance specifications for 50/125 m optical fiber cables May 2005 Canadian Standards Association CSA/3 This Standard was reviewed for Canadian adoption by the CSA Technical Committee on
13、Telecommunications Wiring Systems, under the jurisdiction of the Strategic 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 Canadian Standar
14、ds 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 Standard should be addressed to Canadian Standards Association 5060
15、 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N6 1-800-463-6727 416-747-4044 www.csa.ca ANSI/TIA/EIA-568-B.3-1-2002 Approved: April 3, 2002 TIA/EIA STANDARD Cm TIA/EIA-568-B.3-1 Optical Fiber Cabling Components Standard Addendum 1 Additional Transmission Performance Specifications for
16、50/125 g109m Optical Fiber Cables TIA/EIA-568-B.3-1 (Addendum No. 1 to TIA/EIA-568-B.3) APRIL 2002 TELECOMMUNICATIONS INDUSTRY ASSOCIATION The Telecommunications Industry Association represents the communications sector of NOTICE TIA/EIA Engineering Standards and Publications are designed to serve t
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20、sume 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 hea
21、lth practices and to determine the applicability of regulatory limitations before its use. (From Standards Proposal Nos.3-3894-AD1-A, formulated under the cognizance of the TIA TR-42.8 Subcommittee on Telecommunications Optical Fiber Cabling Systems.) Published by g211TELECOMMUNICATIONS INDUSTRY ASS
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32、DAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. ANSI/TIA/EIA-568-B.3-1 i Additional Transmission Performance Specifications for 50/125 m Optical Fiber Cables Table of Contents 1. INTRODUCTION . 1 1.1 Purpose 1 2. SCOPE 1
33、2.1 Applicability 1 2.2 Normative references . 1 3. OPTICAL FIBER CABLES . 1 3.1 General 1 3.2 Cable transmission performance . 2 4. PATCH CORDS 2 4.1 General 2 4.2 Patch cord cable 2 ANNEX A (INFORMATIVE) BIBLIOGRAPHY AND REFERENCES 3 List of Tables Table 1 Additional optical fiber cable transmissi
34、on performance parameters 2 ANSI/TIA/EIA-568-B.3-1 ii FOREWORD (This foreword is not a part of this Addendum.) In 1996, applications and cabling groups began discussing the need for multimode fiber cabling to support high data rate applications for private networks. The move toward high-speed ( 1 gi
35、gabit-per-second) LANs requires the faster modulation capabilities of laser transmitters like the vertical cavity surface emitting laser (VCSEL) or the edge-emitting semiconductor laser diode. Unlike the less coherent light emitting diodes (LEDs), laser transmitters typically excite only a subset of
36、 the fiber modes available. This change in transmitter property requires compatible specifications on both the transmitter launch conditions and the fiber modal dispersion properties to support these high-speed LAN applications. In March 1999, the United States Technical Advisory Group (US TAG) requ
37、ested that the Telecommunications Industry Association (TIA) TR-42 Engineering Committee on User Premises Telecommunications Cabling Infrastructure develop a recommended US position for ISO/IEC JTC1 SC 25/WG 3 on “Next-Generation Optical Fiber Cabling.” TR-42 assigned the task to TR-42.8, the Optica
38、l Fiber Cabling Subcommittee, which, in turn, accepted the assigned project. The TR-42.8 Subcommittee cooperated with the following standard groups that are related to this activity. a) TIA TR-42.1 Commercial Building Cabling Subcommittee b) TIA FO-2.2 Digital Multimode Systems Subcommittee c) US TA
39、G to ISO/IEC JTC 1/SC 25/WG 3 d) IEEE 802.3ae 10 Gigabit Ethernet Task Force TIA standards are developed within the Technical Committees of the TIA and the standards coordinating committees of the TIA standards board. Members of the committees serve voluntarily and without commission. The companies
40、that they represent are not necessarily members of the TIA. The standards developed within the TIA represent a consensus of the broad expertise on the subject. This expertise comes from within the TIA as well as those outside of the TIA that have an expressed interest. The viewpoint expressed at the
41、 time that this Addendum was approved was from the contributors experience and the state of the art at that time. Users are encouraged to verify that they have the latest revision of the standard. This Addendum to ANSI/TIA/EIA-568-B.3 has been prepared by the TR-42.8 Subcommittee and approved by the
42、 Technical Committee TR-42. Annex A is informative and not considered to be requirements of this Addendum. ANSI/TIA/EIA-568-B.3-1 1 1. INTRODUCTION 1.1 Purpose This Addendum specifies additional component and transmission requirements for a 50/125 m optical fiber cable capable of supporting 10 Gb/s
43、serial transmission up to 300 m (984 ft) using 850 nm nominal wavelength lasers. These cables are suitable for use in accordance with ANSI/TIA/EIA-568-B.1. 2. SCOPE 2.1 Applicability This Addendum specifies minimum requirements for this optical fiber telecommunications cable used within a commercial
44、 building and between buildings in a campus environment. In addition to the requirements specified in this Addendum, this cable shall meet all of the requirements of ANSI/TIA/EIA-568-B.3 and any of its respective addenda. This addendum provides requirements for multimode cable with higher performanc
45、e over other multimode cable specified in ANSI/TIA/EIA-568-B.3 and recognizes advances in cabling and optical transceiver technology, particularly technologies based on vertical cavity surface emitting lasers (VCSELs). 2.2 Normative references The following standards contain provisions that, through
46、 reference in this text, constitute provisions of this Addendum. At the time of publication, the editions indicated were valid. All standards are subject to revision; parties to agreements based on this Addendum are encouraged to investigate the possibility of applying the most recent editions of th
47、e standards indicated. ANSI and TIA maintain registers of currently valid national standards published by them. ANSI/TIA/EIA-568-B.1, Commercial Building Telecommunications Cabling Standard, Part 1, General Requirements, 2001 TIA/EIA-492AAAC, Detail specification for 850-nm laser-optimized, 50-m cor
48、e diameter/125-m cladding diameter class 1a graded-index multimode optical fibers, 2002 3. OPTICAL FIBER CABLES 3.1 General This clause specifies additional component and transmission requirements for a 50/125 m optical fiber cable capable of supporting 10 Gb/s serial transmission up to 300 m (984 f
49、t) using 850 nm nominal wavelength lasers. These cables are suitable for use in accordance with ANSI/TIA/EIA-568-B.1. ANSI/TIA/EIA-568-B.3-1 2 3.2 Cable transmission performance The cabled fiber shall meet the graded performance specifications of table 1 of this Addendum. Table 1 Additional optical fiber cable transmission performance parameters Optical fiber cable type Wavelength (nm) Maximum attenuation (dB/km) Minimum information transmission capacity for overfilled launch1(MHzkm) Minimum information transmission capa
