1、 IEC 61935-2-20 Edition 1.0 2008-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Testing of balanced communication cabling in accordance with ISO/IEC 11801 Part 2-20: Patch cords and work area cords Blank detail specification for class D applications Essais de cblages de tlcommunications symtriques s
2、elon lISO/IEC 11801 Partie 2-20: Cordons de brassage et cordons de zone de travail Spcification particulire cadre pour les applications de classe D IEC 61935-2-20:2008 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2008 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no
3、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 cop
4、yright 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 n
5、i 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
6、 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 the IEC The International Electrotechnical Commission
7、 (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. 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
8、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 It also gives information on projects, withdrawn and replaced
9、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
10、 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
11、 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 A propos de la CEI La Commission Electrotechnique Internationale (CEI) est la premire organisation mondiale qui labore et publie
12、des normes internationales pour tout ce qui a trait llectricit, llectronique et aux technologies apparentes. A propos des publications CEI Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possdez ldition la plus rcente, un corrigendum ou amendement
13、 peut avoir t publi. Catalogue des publications de la CEI: www.iec.ch/searchpub/cur_fut-f.htm Le Catalogue en-ligne de la CEI vous permet deffectuer des recherches en utilisant diffrents critres (numro de rfrence, texte, comit dtudes,). Il donne aussi des informations sur les projets et les publicat
14、ions retires ou remplaces. Just Published CEI: www.iec.ch/online_news/justpub Restez inform sur les nouvelles publications de la CEI. Just Published dtaille deux fois par mois les nouvelles publications parues. Disponible en-ligne et aussi par email. Electropedia: www.electropedia.org Le premier dic
15、tionnaire en ligne au monde de termes lectroniques et lectriques. Il contient plus de 20 000 termes et dfinitions en anglais et en franais, ainsi que les termes quivalents dans les langues additionnelles. Egalement appel Vocabulaire Electrotechnique International en ligne. Service Clients: www.iec.c
16、h/webstore/custserv/custserv_entry-f.htm Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 61935-2-20 Edition 1.0 2008-05 INTERNATIONAL
17、 STANDARD NORME INTERNATIONALE Testing of balanced communication cabling in accordance with ISO/IEC 11801 Part 2-20: Patch cords and work area cords Blank detail specification for class D applications Essais de cblages de tlcommunications symtriques selon lISO/IEC 11801 Partie 2-20: Cordons de brass
18、age et cordons de zone de travail Spcification particulire cadre pour les applications de classe D INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE L ICS 33.120.20 PRICE CODE CODE PRIX ISBN 2-8318-1043-1 Registered trademark of the International Electrotechnical C
19、ommission Marque dpose de la Commission Electrotechnique Internationale 2 61935-2-20 IEC:2008 CONTENTS FOREWORD.3 1 Scope.5 2 Normative references .5 3 Guidance for preparation of detail specifications 6 4 Blank detail specification for work area cord for class D applications8 Bibliography11 61935-2
20、-20 IEC:2008 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ TESTING OF BALANCED COMMUNICATION CABLING IN ACCORDANCE WITH ISO/IEC 11801 Part 2-20: Patch cords and work area cords Blank detail specification for class D applications FOREWORD 1) The International Electrotechnical Commission (IEC) is a wo
21、rldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other
22、 activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the su
23、bject dealt with may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions
24、determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National C
25、ommittees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in w
26、hich they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publi
27、cation and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure
28、that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any
29、nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the refere
30、nced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. Interna
31、tional Standard IEC 61935-2-20 has been prepared by IEC technical committee 46: Cables, wires, waveguides, R.F. connectors, R.F. and microwave passive components and accessories. This first edition cancels and replaces the ISO/IEC PAS 61935-2-20 published in 2007. It constitutes a technical revision
32、. This bilingual version, published in 2009-05, corresponds to the English version. 4 61935-2-20 IEC:2008 The text of this standard is based on the following documents: FDIS Report on voting 46/270/FDIS 46/278/RVD Full information on the voting for the approval of this standard can be found in the r
33、eport on voting indicated in the above table. The French version of this standard has not been voted upon. This blank detail specification is to be used in conjunction with IEC 61156-1, IEC 61156-6, IEC 60603-7-2 and IEC 60603-7-3. A list of all parts of the IEC 61935 series can be found, under the
34、general title Testing of balanced communication cabling in accordance with ISO/IEC 11801, on the IEC website. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. The committee has decided that the contents of this publication will remain unchanged until the maintenan
35、ce result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition; or amended. 61935-2-20 IEC:2008 5 TESTING OF BALANCED COMMUNICATION CABLING IN ACCO
36、RDANCE WITH ISO/IEC 11801 Part 2-20: Patch cords and work area cords Blank detail specification for class D applications 1 Scope This blank detail specification describes work area cord for class D applications, as defined in ISO/IEC 11801 as well as in the ISO/IEC 24702. This blank detail specifica
37、tion determines the layout and style for detail specifications describing cords with transmission characteristics up to 100 MHz for digital communications. Detail specifications, based on this blank detail specification, may be prepared by a national organization, a manufacturer, or a user. Test con
38、figuration applicable to cords is detailed in the IEC 61935-2. The designation “Category 5e“ is used herein to describe an enhanced category 5 cable (see Clause 1 of IEC 61156-6). 2 Normative references The following referenced documents are indispensable for the application of this document. For da
39、ted references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60603-7-2, Connectors for electronic equipment Part 7-2: Detail specification for 8-way, unshielded, free and fixed connectors, for data trans
40、missions with frequencies up to 100 MHz IEC 60603-7-3, Connectors for electronic equipment Part 7-3: Detail specification for 8-way, shielded, free and fixed connectors, for data transmissions with frequencies up to 100 MHz IEC 60794-1-2, Optical fibre cables Part 1-2: Generic specification Basic op
41、tical cable test procedures IEC 61156-1:2007, Multicore and symmetrical pair/quad cables for digital communications Part 1: Generic specification IEC 61156-6:2007, Multicore and symmetrical pair/quad cables for digital communications Part 6: Symmetrical pair/quad cables with transmission characteris
42、tics up to 1 000 MHz Work area wiring Sectional specification IEC 61935-2:2005, Testing of balanced communication cabling in accordance with ISO/IEC 11801 Patch cords and work area cords IEC 62012-1, Multicore and symmetrical pair/quad cables for digital communications to be used in harsh environmen
43、ts Part 1: Generic specifications ISO/IEC 11801, Information technology Generic cabling for customer premises ISO/IEC 24702, Information technology Generic cabling Industrial premises 6 61935-2-20 IEC:2008 EN 50289-1-13, Communication cables Specifications for test methods Part 1-13: Electrical test
44、 methods Coupling attenuation or screening attenuation of patch cords / coaxial cable assemblies / pre-connectorised cables 13 Guidance for preparation of detail specifications It is necessary to keep the transmission characteristics indicated in the relevant sectional specification for the referenc
45、ed category number, i.e. 5e and the characteristic impedance. The detail specification shall be written in accordance with the layout of the blank detail specification, which forms part of this standard. NOTE 1 When a characteristic does not apply, then “na” (for not applicable) should be entered in
46、 the appropriate space. NOTE 2 When a characteristic applies but a specific value is not considered necessary, then “ns” (for not specified) should be entered in the appropriate space. When ns is used, the appropriate requirement in the sectional specification should apply. The numbers shown in brac
47、kets in this and the following pages correspond to the following items of required information, which should be entered in the spaces provided. 1 Name and address of the organization that has prepared the document. 2 IEC document number, issue number and date of issue. 3 Address of the organization
48、from which the document is available. 4 Related documents. 5 Any other reference to the cable, national reference, trade name, etc. 6 A complete description of the cable which shall include a) type and number of elements; b) nominal impedance; c) screening; d) application; e) category; f) other dist
49、inguishing performance characteristics. Example: 4-pair, unshielded twisted pair cable for use in work area wiring, having a nominal impedance of 100 , and meeting the transmission requirements of category 5e and the coupling attenuation requirements of type III. 7 Details of the cable material and construction. 8 Special requirements for bending radius or operat
