1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationTesting of balanced communication cabling in accordance with series EN 50173Part 2-20: Patch cords and work area cords Blank detail specification for class D applicationsBS EN 61
2、935-2-20:2009National forewordThis British Standard is the UK implementation of EN 61935-2-20:2009. Itwas derived by CENELEC from IEC 61935-2-20:2008.The CENELEC common modifications have been implemented at the appropriate places in the text and are indicated by tags (e.g. ).The UK participation in
3、 its preparation was entrusted to Technical CommitteeEPL/46, Cables, wires and waveguides, radio frequency connectors and accessories for communication and signalling.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to
4、 include all the necessary provisions of acontract. Users are responsible for its correct applica-tion. BSI 2010 ISBN 978 0 580 57583 9 ICS 33.040.20; 33.120.20Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of
5、the Standards Policy and Strategy Committee on 30 April 2010.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 61935-2-20:2009EUROPEAN STANDARD EN 61935-2-20 NORME EUROPENNE EUROPISCHE NORM December 2009 CENELEC European Committee for Electrotechnical Standardizat
6、ion Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: Avenue Marnix 17, B - 1000 Brussels 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61935-2-20:2009 E I
7、CS 33.120.20 English version Testing of balanced communication cabling in accordance with series EN 50173 - Part 2-20: Patch cords and work area cords - Blank detail specification for class D applications (IEC 61935-2-20:2008, modified) Essais de cblage de tlcommunications symtrique selon la srie EN
8、 50173 - Partie 2-20: Cordons de brassage et cordons de zones de travail - Spcification particulire cadre pour applications de classe D (CEI 61935-2-20:2008, modifie) Prfung der symmetrischen Kommunikationsverkabelung nach der Normenreihe EN 50173 - Teil 2-20: Rangierschnre und Gerteanschlussschnre
9、- Vordruck fr Bauartspezifikation fr Anwendungen der Klasse D (IEC 61935-2-20:2008, modifiziert) This European Standard was approved by CENELEC on 2008-06-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standar
10、d 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 European Standard exists in three official versions (English, French
11、, 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 are the national electrotechnical committees of Austria, Belgium, Bu
12、lgaria, 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, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 61935-2-20:
13、2009EN 61935-2-20:2009 - 2 - Foreword The text of document 46/270/FDIS, future edition 1 of IEC 61935-2-20, prepared by IEC TC 46, Cables, wires, waveguides, R.F. connectors, R.F. and microwave passive components and accessories, was submitted to the IEC-CENELEC parallel vote and was approved by CEN
14、ELEC as EN 61935-2-20 on 2008-06-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2010-07-01 latest date by which the national standards conflicting with the EN have to be
15、withdrawn (dow) 2011-06-01 Annex ZA has been added by CENELEC. _ BS EN 61935-2-20:2009- 3 - EN 61935-2-20:2009 Endorsement notice The text of the International Standard IEC 61935-2-20:2008 was approved by CENELEC as a European Standard with agreed common modifications. BS EN 61935-2-20:2009EN 61935-
16、2-20:2009 - 4 - 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 applies. For undated referenc
17、es, 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 Information technology - Generic cabling systems -
18、 Part 1: General requirements EN 50173-1 -1) Information technology - Generic cabling systems - Part 3: Industrial premises EN 50173-3 -1) Communication cables - Specifications for test methods - Part 1-13: Electrical test methods - Coupling attenuation or screening attenuation of patch cords / coax
19、ial cable assemblies / pre-connectorised cables EN 50289-1-13 -1)IEC 60603-7-2 -1)Connectors for electronic equipment - Part 7-2: Detail specification for 8-way, unshielded, free and fixed connectors, for data transmissions with frequencies up to 100 MHz EN 60603-7-2 20092)IEC 60603-7-3 -1)Connector
20、s for electronic equipment - Part 7-3: Detail specification for 8-way, shielded, free and fixed connectors, for data transmission with frequencies up to 100 MHz EN 60603-7-3 20092)IEC 60794-1-2 -1)Optical fibre cables - Part 1-2: Generic specification - Basic optical cable test procedures EN 60794-1
21、-2 20032)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 characteristics up to 1
22、000 MHz -Work area wiring - Sectional specification - - IEC 61935-2 (mod) 2005 Testing of balanced communication cabling in accordance with standards series EN 50173 - Part 2: Patch cords and work area cords EN 61935-2 + corr. December 2005 2005 1)Undated reference. 2)Valid edition at date of issue
23、BS EN 61935-2-20:2009- 5 - EN 61935-2-20:2009 Publication Year Title EN/HD Year IEC 62012-1 -1)Multicore and symmetrical pair/quad cables for digital communications to be used in harsh environments - Part 1: Generic specification EN 62012-1 20022)BS EN 61935-2-20:2009 2 CONTENTS 1 Scope.5 2 Normativ
24、e references .5 3 Guidance for preparation of detail specifications 6 4 Blank detail specification for Work area cord for class D applications .8 Bibliography11 BS EN 61935-2-20:2009EN 61935-2-20:2009 5 TESTING OF BALANCED COMMUNICATION CABLING IN ACCORDANCE WITH series EN 50173 Part 2-20: Patch cor
25、ds 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 EN 50173-1 as well as in the EN 50173-3 . This blank detail specification determines the layout and style for detail spe
26、cifications 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 configuration applicable to cords is detailed in the I
27、EC 61935-2. The designation “Category 5e“ is used herein to describe an enhanced category 5 cable (see 1 of IEC 61156-6). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undate
28、d 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 transmissions with frequencies up to 100 MHz IEC 60603-7-3, Con
29、nectors 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 optical cable test procedures IEC 61156-1:2007, Multicore an
30、d 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 characteristics up to 1 000 MHz Work area wiring Sectional specificat
31、ion 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 environments Part 1: Generic specifications BS EN 61935-2-20:2009 EN
32、 50173-1, Information technology - Generic cabling systems Part 1: General requirements EN 50173-3, Information technology - Generic cabling systems Part 3: Industrial premises EN 61935-2-20:2009 6 EN 50289-1-13, Electrical test methods Coupling attenuation or screening attenuation of patch cords /
33、coaxial cable assemblies / pre-connectorised cables13 Guidance for preparation of detail specifications It is necessary to keep the transmission characteristics indicated in the relevant sectional specification for the referenced category number, i.e. 5e and the characteristic impedance. The detail
34、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 the appropriate space. NOTE 2 When a characteristic applies but a specif
35、ic 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 brackets in this and the following pages correspond to the following items of
36、 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 from which the document is available. 4 Related documents. 5 Any other re
37、ference 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 distinguishing performance characteristics. Example: 4-pair, unshielded twist
38、ed 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 operating temp
39、eratures. 9 List of cable characteristics. They are separated into electrical, transmission, mechanical and environmental characteristics. The recommended environmental severities are derived from the MICE table requirements of EN 50173-3 . These recommendations were made to better reflect the cable
40、 behaviour. It should be noted that ingress requirements using particles are not applicable to a cable. The temperature requirements are addressed in 8. Rapid change of temperature is irrelevant for cables. _ 1The EN 50289-1-13 will be replaced with equivalent IEC publication when available. BS EN 6
41、1935-2-20:2009 EN 61935-2-20:2009 7 Electromagnetic requirements coming from the MICE table of EN 50173-3 have been dealt with by using the requirements that are given for transfer impedance, screening attenuation and coupling attenuation. ESD requirements are considered non-applicable 10 Appropriat
42、e subclause references in the generic specification IEC 61156-1/ 61935-2/ 62012-1/ 60794-1-2 and EN 50289-1-13. 11 Appropriate subclause references in the sectional specification IEC 61156-6/ 61935-2/ 62012-1 and EN 50289-1-13. 12 Requirements applicable to this cable. The values shall meet the requ
43、irements of sectional specification IEC 61156-6 for category 5e. For those limits that are not related to the cable category and for which a choice is proposed, they have to be chosen to meet the related MICE table requirements 13 Comments Relevant remarks. BS EN 61935-2-20:2009 EN 61935-2-20:2009 8
44、 4 Blank detail specification for Work area cord for class D applications 1 Prepared by: 2 Document: Issue: Date: 3 Available from: 4 Sectional for the testing of cords: IEC 61935-2 Blank detail specification: IEC 61935-2-20 5 Additional references: EN 50173-1 6 Cord description: a) Category b) Nomi
45、nal impedance c) Connector type d) Cable e) Screening f) Housing g) MICE 7 Cable assembly construction: IEC 61156-1 IEC 61156-6 IEC 61935-2, 4.1 5.2.6 5.2.6 5.2.7.1 5.2.6 5.2.6 5.2.7 Sheath Material Nominal thicknessaColour Maximum overall Diameter Marking 2.2.13 2.2.13 Packaging: Visual inspection
46、IEC 61935-2, 5.1 8 Minimum bending radius for static bending: mm Minimum bending radius for dynamic bending: mm Temperature range for installation C Operating temperature range under static conditions: -10 C to +60 C (C1), -25 C to +70 C (C2), -40 C to +70C (C3) dHousing IEC 723/08 BS EN 61935-2-20:
47、2009 EN 61935-2-20:2009 9 9 Characteristics 10 IEC 61156-1 subclause 11 IEC 61156-6 subclause 12 Recommended severities/ Requirements 13 CommentsElectrical Characteristics 6.2 6.2 DC loop resistance 6.2.1 6.2.1 Assumed to be met by design CS Resistance unbalance 6.2.2 6.2.2 Assumed to be met by desi
48、gn Wire Map IEC 61935-2, 5.2 Transmission characteristics 6.3 6.3 Propagation delay bIEC 61935-2, 5.3 Assumed to be met by design Differential phase delay (skew) bIEC 61935-2, 5.4 Assumed to be met by design Insertion loss IEC 61935-2, 5.5 dB Near-end crosstalk (pair to pair) 6.3.4 IEC 61935-2, 5.7
49、dB Return loss IEC 61935-2, 5.6 dB Screening attenuation EN 50289-1-131EN 50289-1-13 na 40 dB 60 dB Transfer impedance 6.2.7 6.2.7 na grade 2 grade 1 Coupling attenuation 6.2.8 6.2.8 type III type II type I Mechanical and dimensional characteristics 6.4 6.4 Tensile performance of the cord IEC 61935-2, 6.2 N Flexure IEC 6193
