1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 61935-2:2010Specification for the testingof balanced and coaxialinformation technology cablingPart 2: Cords as specified in ISO/IEC 11801and related standardsBS EN 61935-2:
2、2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 61935-2:2010.It is identical to IEC 61935-2:2010. It supersedes BS EN 61935-2:2005which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee EPL/46, Cables, wires and wavegu
3、ides, radio frequencyconnectors and accessories for communication and signalling.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its corr
4、ectapplication. BSI 2010ISBN 978 0 580 56602 8ICS 33.040.20; 33.120.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2010.Amendments issued since pub
5、licationDate Text affectedEUROPEAN STANDARD EN 61935-2 NORME EUROPENNE EUROPISCHE NORM September 2010 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17,
6、B - 1000 Brussels 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61935-2:2010 E ICS 33.040.20; 33.120.20 Supersedes EN 61935-2:2005English version Specification for the testing of balanced and coaxial information technology
7、cabling - Part 2: Cords as specified in ISO/IEC 11801 and related standards (IEC 61935-2:2010) Spcification relative aux essais des cblages symtriques et coaxiaux des technologies de linformation - Partie 2: Cordons tels que spcifis dans lISO/CEI 11801 et normes associes (CEI 61935-2:2010) Spezifika
8、tion fr die Prfung der symmetrischen und koaxialen informationstechnischen Verkabelung Teil 2: Schnre nach ISO/IEC 11801 und entsprechenden Normen (IEC 61935-2:2010) This European Standard was approved by CENELEC on 2010-09-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regula
9、tions which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This
10、 European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members
11、 are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia,
12、Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 61935-2:2010 - 2 - Foreword The text of document 46/351/FDIS, future edition 3 of IEC 61935-2, prepared by IEC TC 46, Cables, wires, waveguides, R.F. connectors, R.F. and microwave passive components and accessories, was submitted to th
13、e IEC-CENELEC parallel vote and was approved by CENELEC as EN 61935-2 on 2010-09-01. This European Standard supersedes EN 61935-2:2005. This EN 61935-2:2010 differs from EN 61935-2:2005 in that it covers category 6Ato category 7Acords as defined in ISO/IEC 11801. Attention is drawn to the possibilit
14、y that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an iden
15、tical national standard or by endorsement (dop) 2011-06-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2013-09-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61935-2:2010 was approved by CENELE
16、C as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60068-2-68 NOTE Harmonized as EN 60068-2-68. IEC 60512-27-1001)NOTE Harmonized as EN 60512-27-1001). _ 1)At draft stage. BS EN 61935-2:2
17、010BS EN 61935-2:2010- 3 - EN 61935-2:2010 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited ap
18、plies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60068-2-61 - Enviro
19、nmental testing - Part 2: Test methods - Test Z/ABDM: Climatic sequence EN 60068-2-61 - IEC 60603-7 Series Connectors for electronic equipment - Part 7: Detail specifications EN 60603-7 Series IEC 60603-7 2008 Connectors for electronic equipment - Part 7: Detail specification for 8-way, unshielded,
20、free and fixed connectors EN 60603-7 2009 IEC 60603-7-51 - Connectors for electronic equipment - Part 7-51: Detail specification for 8-way, shielded, free and fixed connectors, for data transmissions with frequencies up to 500 MHzEN 60603-7-51 - IEC 61076-3-104 - Connectors for electronic equipment
21、- Product requirements - Part 3-104: Detail specification for 8-way, shielded free and fixed connectors for data transmissions with frequencies up to 1 000 MHz EN 61076-3-104 - IEC 61076-3-110 - Connectors for electronic equipment - Product requirements - Part 3-110: Rectangular connectors - Detail
22、specification for shielded, free and fixed connectors for data transmission with frequencies up to 1 000 MHz EN 61076-3-110 - IEC 61156 Series Multicore and symmetrical pair/quad cables for digital communications - - IEC 61156-1 - Multicore and symmetrical pair/quad cables for digital communications
23、 - Part 1: Generic specification - - IEC 61156-6 - Multicore and symmetrical pair/quad cables for digital communications - Part 6: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz -Work area wiring - Sectional specification - - IEC 61935-1 (mod) 2009 Specification for t
24、he testing of balanced and coaxial information technology cabling - Part 1: Installed balanced cabling as specified in ISO/IEC 11801 and related standards EN 61935-1 2009 BS EN 61935-2:2010EN 61935-2:2010 - 4 - Publication Year Title EN/HD Year IEC 62153-4-11 - Metallic communication cable test meth
25、ods - Part 4-11: Electromagnetic compatibility (EMC) - Coupling attenuation or screening attenuation of patch cords, coaxial cable assemblies, pre-connectorized cables - Absorbing clamp method - - ISO/IEC 11801 - Information technology - Generic cabling for customer premises - - BS EN 61935-2:2010 2
26、 61935-2 IEC:2010 CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references .7 3 Terms and definitions .8 4 General requirements and test configuration 8 4.1 Cable and connector design 8 4.2 Balanced cord, cable and connector tests .8 4.3 Test configuration and equipment8 4.4 Balanced cord
27、 tests requirements .9 5 Acceptance tests 10 5.1 Visual inspection .10 5.2 Wire map.11 5.3 Propagation delay .12 5.4 Delay skew12 5.5 Insertion loss.12 5.6 Return loss12 5.7 Near end crosstalk (NEXT)13 5.8 Assumptions used in the development of cord requirements16 6 Balanced cord test procedure Netw
28、ork analyser test configuration 16 7 Periodic tests .17 7.1 General .17 7.2 Tensile strength 17 7.3 Flexure18 7.4 Bending.19 7.5 Twisting.19 7.6 Crushing .20 7.7 Dust test21 7.8 Coupling attenuation .23 7.9 Climatic sequence .24 8 Test head requirements24 8.1 General .24 8.2 Minimum requirements for
29、 all test head designs 24 8.3 Additional FEXT requirements for balanced connector compatible test heads25 8.4 Additional return loss requirements for balanced connector compatible test heads 25 8.5 NEXT loss centering requirements for balanced connector compatible test heads 25 Bibliography27 BS EN
30、61935-2:201061935-2 IEC:2010 3 Figure 1 Test configuration for balanced cord for NEXT and return loss measurements 9 Figure 2 Correct pairing .11 Figure 3 Incorrect pairing.11 Figure 4 Initial marking of the cable sheath17 Figure 5 Final visual inspection17 Figure 6 Fixture for balanced cord flexure
31、 test .18 Figure 7 Bending test: assembly in U shape 19 Figure 8 Twisting test: assembly in U shape 20 Figure 9 Fixture for cable crushing test 21 Figure 10 Measuring device .23 Figure 11 Centering of NEXT properties of the balanced connector test head 26 Table 1 Return loss requirements 13 Table 2
32、Balanced cord return loss requirements at key frequencies .13 Table 3 Category 5 balanced cord NEXT requirements at key frequencies.15 Table 4 Category 6 balanced cord NEXT requirements at key frequencies.15 Table 5 Category 6Abalanced cord NEXT requirements at key frequencies 15 Table 6 Category 7
33、balanced cord NEXT requirements at key frequencies.15 Table 7 Category 7Abalanced cord NEXT requirements at key frequencies 15 Table 8 Assumptions for cabling components used in the development of NEXT and return loss requirements .16 Table 9 Coupling attenuation limits 23 BS EN 61935-2:2010 4 61935
34、-2 IEC:2010 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ SPECIFICATION FOR THE TESTING OF BALANCED AND COAXIAL INFORMATION TECHNOLOGY CABLING Part 2: Cords as specified in ISO/IEC 11801 and related standards FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization f
35、or 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 activities, IEC publi
36、shes 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 subject dealt with may p
37、articipate 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 determined by agreement
38、 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 Committees. 3) IEC Publi
39、cations 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 which they are used or f
40、or 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 Publication and the correspo
41、nding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
42、 services carried out by independent certification bodies. 6) All users should ensure 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 IE
43、C National Committees for any personal injury, property damage or other damage of any 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) Atten
44、tion is drawn to the Normative references cited in this publication. Use of the referenced 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. IE
45、C shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61935-2 has been prepared by IEC technical committee 46: Cables, wires, waveguides, R.F. connectors, R.F. and microwave passive components and accessories. This third edition cancels and replace
46、s the second edition published in 2005. This third edition of IEC 61935-2 differs from the second edition in that it covers category 6Ato category 7Acords as defined in ISO/IEC 11801. BS EN 61935-2:201061935-2 IEC:2010 5 The text of this standard is based on the following documents: FDIS Report on v
47、oting 46/351/FDIS 46/364/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. The French version of this standard has not been voted upon. This publication has been drafted in accordance with the ISO/IEC Directives, P
48、art 2. A list of all parts of the IEC 61935 series, under the general title: Specification for the testing of balanced and coaxial information technology cabling, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stabilit
49、y 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. A bilingual version of this publication may be issued at a later date. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of it
