1、 IEC 60793-2-40Edition 3.0 2009-04INTERNATIONAL STANDARD Optical fibres Part 2-40:Product specifications Sectional specification for category A4 multimode fibres IEC 60793-2-40:2009(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.THI
2、S PUBLICATION IS COPYRIGHT PROTECTED Copyright 2009 IEC,Geneva,Switzerland All rights reserved.Unless otherwise specified,no part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing
3、from either IEC or IECs member National Committee in the country of the requester.If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,please contact the address below or your local IEC member National Committee for further informatio
4、n.IEC Central Office 3,rue de Varemb CH-1211 Geneva 20 Switzerland Email:inmailiec.ch Web:www.iec.ch About the IEC The International Electrotechnical Commission(IEC)is the leading global organization that prepares and publishes International Standards for all electrical,electronic and related techno
5、logies.About IEC publications The technical content of IEC publications is kept under constant review by the IEC.Please make sure that you have the latest edition,a corrigenda or an amendment might have been published.?Catalogue of IEC publications:www.iec.ch/searchpub The IEC on-line Catalogue enab
6、les you to search by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,withdrawn and replaced publications.?IEC Just Published:www.iec.ch/online_news/justpub Stay up to date on all new IEC publications.Just Published details twice a month all new
7、 publications released.Available on-line and also by email.?Electropedia:www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions in English and French,with equivalent terms in additional languages.Also known as th
8、e International Electrotechnical Vocabulary online.?Customer Service Centre:www.iec.ch/webstore/custserv If you wish to give us your feedback on this publication or need further assistance,please visit the Customer Service Centre FAQ or contact us:Email:csciec.ch Tel.:+41 22 919 02 11 Fax:+41 22 919
9、 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.IEC 60793-2-40Edition 3.0 2009-04INTERNATIONAL STANDARD Optical fibres Part 2-40:Product specifications Sectional specification for category A4 multimode fibres INTERNATIONAL ELECT
10、ROTECHNICAL COMMISSION VICS 33.180.10 PRICE CODEISBN 2-8318-1037-2 Registered trademark of the International Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 60793-2-40 IEC:2009(E)CONTENTS FOREWORD.4 1 Scop
11、e and object.6 2 Normative references.7 3 Specifications.7 3.1 Dimensional requirements.7 3.2 Mechanical requirements.8 3.2.1 Tensile load test.9 3.3 Transmission requirements.10 3.4 Environmental requirements.11 3.4.1 Mechanical environmental requirement.12 3.4.2 Transmission environmental requirem
12、ents.12 Annex A(normative)Family specifications for A4a multimode fibres.14 Annex B(normative)Family specifications for A4b multimode fibres.16 Annex C(normative)Family specifications for A4c multimode fibres.18 Annex D(normative)Family specifications for A4d multimode fibres.20 Annex E(normative)Fa
13、mily specifications for A4e multimode fibres.22 Annex F(normative)Family specifications for A4f multimode fibres.24 Annex G(normative)Family specifications for A4g multimode fibres.26 Annex H(normative)Family specifications for A4h multimode fibres.28 Annex I(normative)Mode Scramblers for A4a to A4d
14、 Fibres(based on IEC 794-1-1,1999).30 Annex J(informative)Additional transmission requirements for A4a multimode fibres for wavelengths below 650 nm.31 Figure 1 Tensile Load versus Elongation for a plastic optical fibre.10 Figure I.1 Mode Scrambler for A4 fibre.30 Table 1 Characteristics and applica
15、tions of category A4 Fibres.6 Table 2 Dimensional attributes and measurement methods.8 Table 3 Requirements common to all category A4 fibres.8 Table 4 Additional attributes required in A4a though A4e family specifications.8 Table 5 Additional attributes required in A4f through A4h family specificati
16、ons.8 Table 6 Mechanical attributes and test methods.9 Table 7 Requirements common to category A4 fibres.9 Table 8 Additional attributes required in family specification for categories A4a through A4e fibres.9 Table 9 Additional attributes required in family specification for categories A4f through A4h fibres.9 Table 10 Transmission attributes and measurement methods.11 Table 11 Attributes required in family specifications.11 Table 12 Environmental exposure tests.11 Table 13 Attributes measured.
