IEC_TR_62652-2010.pdf

IEC/TR 62652Edition 1.0 2010-03TECHNICAL REPORT Effects of engaging and separating under electrical load on connector interfaces in cabling used to support IEEE 802.3af(power-over-ethernet)applications IEC/TR 62652:2010(E)colourinsideLICENSED TO MECON LIMITED-RANCHI/BANGALORE,FOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2010 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 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 information.Droits de reproduction rservs.Sauf indication contraire,aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque forme que ce soit et par aucun procd,lectronique ou mcanique,y compris la photocopie et les microfilms,sans laccord crit de la CEI ou du Comit national de la CEI du pays du demandeur.Si vous avez des questions sur le copyright de la CEI ou si vous dsirez obtenir des droits supplmentaires sur cette publication,utilisez les coordonnes ci-aprs ou contactez le Comit national de la CEI de votre pays de rsidence.IEC Central Office 3,rue de Varemb CH-1211 Geneva 20 Switzerland Email:inmailiec.ch Web:www.iec.ch 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 enables 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to search by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,withdrawn and replaced publications.?IEC Just Published:www.iec.ch/online_news/justpub Stay up to date on all new IEC publications.Just Published details twice a month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 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 the 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 03 00 LICENSED TO MECON LIMITED-RANCHI/BANGALORE,FOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.IEC/TR 62652Edition 1.0 2010-03TECHNICAL REPORT Effects of engaging and separating under electrical load on connector interfaces in cabling used to support IEEE 802.3af(power-over-ethernet)applications INTERNATIONAL ELECTROTECHNICAL COMMISSION UICS 13.220.10 PRICE CODEISBN 2-8318-1087-3 Registered trademark of the International Electrotechnical Commission colourinsideLICENSED TO MECON LIMITED-RANCHI/BANGALORE,FOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 TR 62652 IEC:2010(E)CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references.7 3 Abbreviations.7 4 General.8 5 Telecommunications industry information.8 6 Technical information.9 6.1 Electrical discharges.9 6.2 Surface plating.long and short term effects.10 6.3 IEEE 802.3af Power-over-Ethernet environment(PoE).11 6.4 Factors affecting the connector durability and definition of a nominal contact zone.12 6.5 Acceptance criteria.13 7 Test procedures,test set-up description and results.14 7.1 General.14 7.2 Tests 1A and 2A Evaluation of the mechanical damage.15 7.3 Tests 3A.15 7.4 Test 4A Comparison of different IEC 60603-7 connectors.17 7.4.1 General.17 7.4.2 Tests Visual inspection of contacts.17 7.4.3 Results and observations to test 4A.17 7.5 Test 5A Resistive test setup simulating PoE power stress.19 7.5.1 General.19 7.5.2 Test setup.19 7.5.3 Tests Visal inspection of contacts.19 7.5.4 Results and observations to test 5A.19 7.6 Test 6A Engaging and separating with IEEE 802.3af hardware.20 7.6.1 PoE hardware.20 7.6.2 Tests Visual inspection of contacts.21 7.6.3 Results Test 6A.21 7.7 Test 7A and 8A Effect of speed of contact separation.22 7.8 Tests 9A,10A and 11A Effect of the cord length.22 7.9 Test 12A Effect of polarity.23 7.10 Test 13 A Investigation of IEC 60603-7-7 or IEC 61076-3-110 connecting hardware.24 7.11 Tests 14A and 15 A.100 m long cable test.25 8 Conclusions.26 9 Future work.26 Bibliography.28 Figure 1 Illustration of a typical shielded 8-way connector according IEC 60603-7.9 Figure 2 Illustration of an IEC 60603-7-7 or IEC 61076-3-110 connector.9 F