1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationSpecification for the testing ofbalanced and coaxial informationtechnology cablingPart 1: Installed balanced cabling as specified in the standards series EN 50173BS EN 61935-1:20
2、09National forewordThis British Standard is the UK implementation of EN 61935-1:2009. It wasderived by CENELEC from IEC 61935-1:2009. It supersedes BS EN 61935-1:2005 which is withdrawn.The CENELEC common modifications have been implemented at the appro-priate places in the text and are indicated by
3、 tags (e.g. ).The UK participation in 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
4、.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2010 ISBN 978 0 580 56601 1 ICS 33.120.10Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was publishe
5、d under the authority of the Standards Policy and Strategy Committee on 30 April 2010Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 61935-1:2009EUROPEAN STANDARD EN 61935-1 NORME EUROPENNE EUROPISCHE NORM December 2009 CENELEC European Committee for Electrotech
6、nical Standardization 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 6
7、1935-1:2009 E English version Specification for the testing of balanced and coaxial information technology cabling - Part 1: Installed balanced cabling as specified in the standards series EN 50173 (IEC 61935-1:2009, modified) Spcification relative aux essais de cblages symtriques et coaxiaux propre
8、s aux technologies de linformation -Partie 1: Cblages symtriques installs selon la srie de normes EN 50173 (CEI 61935-1:2009, modifie) Spezifikation fr die Prfung der symmetrischen und koaxialen informationstechnischen Verkabelung - Teil 1: Installierte symmetrische Verkabelung nach EN 50173 und ent
9、sprechenden Normen (IEC 61935-1:2009, modifiziert) This European Standard was approved by CENELEC on 2009-10-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without an
10、y 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, German). A version in any other language mad
11、e 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, Bulgaria, Cyprus, the Czech Republic, Denmark, E
12、stonia, 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. ICS 33.120.10 Supersedes EN 61935-1:2005BS EN 61935-1:2009EN 61
13、935-1:2009 - 2 - Foreword The text of document 46/323/FDIS, future edition 3 of IEC 61935-1, 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 CENELEC as EN 6193
14、5-1 on 2009-10-01 with common modifications prepared by the German national committee to have the standard refer to the relevant European Standards. This European Standard supersedes EN 61935-1:2005. This new edition includes test methods for exogenous (alien) crosstalk. It also includes a new annex
15、 for uncertainty and variability of field test results. 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
16、 the EN have to be withdrawn (dow) 2012-10-01 Annex ZA has been added by CENELEC. _ BS EN 61935-1:2009- 3 - EN 61935-1:2009 Endorsement notice The text of the International Standard IEC 61935-1:2009 was approved by CENELEC as a European Standard with agreed common modifications. BS EN 61935-1:2009-
17、4 - EN 61935-1:2009 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 refe
18、rences, 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 syste
19、ms EN 50173 Series Information technology - Cabling installation - Part 1: Installation specification and quality assurance EN 50174-1 1) Communication cables - Specifications for test methods - Part 1-15: Electromagnetic performance - Coupling attenuation of links and channels (Laboratory condition
20、s) EN 50289-1-15 1)IEC 60169-22 1)Radio-frequency connectors - Part 22: R.F. two-pole bayonet coupled connectors for use with shielded balanced cables having twin inner conductors (Type BNO) IEC 60512-25-9 1)Connectors for electronic equipment - Tests and measurements - Part 25-9: Signal integrity t
21、ests - Test 25i: Alien crosstalk EN 60512-25-9 20082)IEC 60603-7 1)Connectors for electronic equipment - Part 7: Detail specification for 8-way, unshielded, free and fixed connectors EN 60603-7 2009 IEC 60603-7-X Series Connectors for electronic equipment - Part 7-X: Detail specification for 8-way,
22、shielded free and fixed connectors EN 60603-7-X Series IEC 60603-7-4 1)Connectors for electronic equipment - Part 7-4: Detail specification for 8-way, unshielded, free and fixed connectors, for data transmissions with frequencies up to 250 MHzEN 60603-7-4 200X3)IEC 60603-7-5 1)Connectors for electro
23、nic equipment - Part 7-5: Detail specification for 8-way, shielded, free and fixed connectors, for data transmissions with frequencies up to 250 MHzEN 60603-7-5 2009 1)Undated reference. 2)Valid edition at date of issue. 3)To be published BS EN 61935-1:2009EN 61935-1:2009 - 5 - Publication Year Titl
24、e EN/HD Year IEC 61076-3-104 1)Connectors for electronic equipment - 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 20062)IEC 61076-3-110 1)Connectors for electronic equipmen
25、t - Product requirements - Part 3-110: Rectangular connectors - Detail specification for shielded, free and fixed connectors for data transmission with frequencies up to 1 000 MHz EN 61076-3-110 20082)IEC 61156-1 1)Multicore and symmetrical pair/quad cables for digital communications - Part 1: Gener
26、ic specification IEC 61156-5 1)Multicore and symmetrical pair/quad cables for digital communications - Part 5: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz -Horizontal floor wiring - Sectional specification IEC 61156-6 1)Multicore and symmetrical pair/quad cables fo
27、r digital communications - Part 6: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz -Work area wiring - Sectional specification IEC 61156-7 1)Multicore and symmetrical pair/quad cables for digital communications - Part 7: Symmetrical pair cables with transmission charac
28、teristics up to 1 200 MHz -Sectional specification for digital and analog communication cables IEC 61156-8 1)Multicore and symmetrical pair/quad cables for digital communications - Part 8: Symmetrical pair/quad cables with transmission characteristics up to 1 200 MHz -Work area wiring - Sectional sp
29、ecification ITU-T Recommendation G.117 1996 Transmission aspects of unbalance about earth ITU-T Recommendation O.9 1999 Measuring arrangements to assess the degree of unbalance about earth BS EN 61935-1:2009 2 CONTENTS INTRODUCTION.10 1 Scope.11 2 Normative references .12 3 Terms and definitions .13
30、 4 Reference measurement procedures for electrical properties .15 4.1 General .15 4.2 Test equipment considerations 15 4.2.1 General .15 4.2.2 Network analyzer test requirements.15 4.2.3 Termination of conductor pairs 16 4.2.4 Reference loads for calibration 17 4.2.5 Test configurations 17 4.2.6 Coa
31、xial cables and test leads for network analyzers 18 4.2.7 Balun requirements .19 4.2.8 Network analyzer measurement precautions20 4.2.9 Data reporting and accuracy21 4.3 DC loop resistance 21 4.3.1 Objective .21 4.3.2 Test method 22 4.3.3 Test equipment and set-up 22 4.3.4 Procedure22 4.3.5 Test rep
32、ort.22 4.3.6 Uncertainty23 4.4 Direct current (d.c.) resistance unbalance .23 4.4.1 Objective .23 4.4.2 Test method 23 4.4.3 Test equipment and set-up 23 4.4.4 Procedure23 4.4.5 Test report.24 4.4.6 Uncertainty24 4.5 Insertion loss.24 4.5.1 Objective .24 4.5.2 Test method 24 4.5.3 Test equipment and
33、 set-up 25 4.5.4 Procedure25 4.5.5 Test report.26 4.5.6 Temperature correction .26 4.5.7 Uncertainty26 4.6 Propagation delay and delay skew 26 4.6.1 Objective .26 4.6.2 Test method 26 4.6.3 Test equipment and set-up 27 4.6.4 Procedure27 4.6.5 Test report.27 4.6.6 Uncertainty27 BS EN 61935-1:2009EN 6
34、1935-1:2009 3 4.7 Near-end cross-talk (NEXT) and power sum NEXT28 4.7.1 Objective .28 4.7.2 Test method 28 4.7.3 Test equipment and set-up 28 4.7.4 Procedure28 4.7.5 Test report.29 4.7.6 Uncertainty30 4.8 Attenuation to crosstalk ratio, near end (ACR-N) and power sum ACR-N.30 4.8.1 Objective .30 4.8
35、.2 Test method 30 4.8.3 Test equipment and set-up 30 4.8.4 Procedure30 4.8.5 Test report.30 4.8.6 Uncertainty30 4.9 Far-end cross-talk (FEXT) and power sum FEXT.31 4.9.1 Objective .31 4.9.2 Test method 31 4.9.3 Test equipment and set-up 31 4.9.4 Procedure32 4.9.5 Test report.32 4.9.6 Uncertainty of
36、FEXT measurements 32 4.10 Equal level far end crosstalk (ELFEXT) and attenuation to crosstalk ratio, far end (ACR-F)32 4.10.1 Objective .32 4.10.2 Calculation 33 4.10.3 Test report.33 4.10.4 Uncertainty33 4.11 Return loss33 4.11.1 Objective .33 4.11.2 Test method 33 4.11.3 Test equipment and set-up
37、34 4.11.4 Procedure34 4.11.5 Test report.35 4.11.6 Uncertainty35 4.12 PS alien near end crosstalk (PS ANEXT Exogenous crosstalk).35 4.12.1 Objective .35 4.12.2 Test method 35 4.12.3 Test equipment and set-up 35 4.12.4 Procedure36 4.13 PS attenuation to alien crosstalk ratio, far end crosstalk (PS AA
38、CR-F Exogenous crosstalk) 38 4.13.1 Objective .38 4.13.2 Test method 38 4.13.3 Test equipment and set-up 38 4.13.4 Procedure40 4.14 Unbalance attenuation, near end.42 4.14.1 Objective .42 4.14.2 Test method 42 4.14.3 Test equipment and set-up 42 BS EN 61935-1:2009EN 61935-1:2009 4 4.14.4 Procedure43
39、 4.14.5 Test report.45 4.14.6 Uncertainty46 4.15 Unbalance attenuation, far end46 4.15.1 Objective .46 4.15.2 Test method 46 4.15.3 Test equipment and set-up 46 4.15.4 Procedure47 4.15.5 Test report.48 4.15.6 Uncertainty48 4.16 Coupling attenuation .48 5 Field test measurement requirements for elect
40、rical properties 48 5.1 General .48 5.2 Cabling configurations tested 49 5.3 Field test parameters.49 5.3.1 General .49 5.3.2 Inspection of workmanship and connectivity testing .50 5.3.3 Propagation delay and delay skew.51 5.3.4 Length .51 5.3.5 Insertion loss.52 5.3.6 NEXT, power sum NEXT52 5.3.7 A
41、CR-N and power sum ACR-N 53 5.3.8 ELFEXT, power sum ELFEXT, ACR-F, power sum ACR-F .54 5.3.9 Return loss55 5.3.10 Direct current (d.c.) loop resistance.55 5.4 Power sum alien crosstalk.55 5.4.1 Objective .55 5.4.2 Test method 56 5.4.3 Test equipment and set-up 56 5.4.4 Measuring ANEXT loss56 5.4.5 M
42、easuring AFEXT loss 57 5.4.6 Procedure57 5.4.7 Calculation of PS ANEXT and PS AACR-F from measured data 57 5.4.8 Selection of test ports60 5.4.9 Test report.62 5.4.10 Uncertainty of PS alien crosstalk measurements .62 5.5 Data reporting and accuracy62 5.5.1 General .62 5.5.2 Detailed results .64 5.5
43、.3 Summary results64 5.5.4 Reporting requirements for power sum alien crosstalk .68 5.5.5 General .68 5.5.6 Consistency checks for field testers.68 5.5.7 Evaluation of consistency tests69 5.5.8 Administration system applicability 69 5.5.9 Test equipment adapter cords for link testing.69 5.5.10 User
44、cords and channel testing69 6 Field tester measurement accuracy requirements.69 6.1 General .69 BS EN 61935-1:2009EN 61935-1:2009 5 6.2 Measurement accuracy specifications common to level IIE, level III, level IIIE, and level IV field testers.73 6.3 Accuracy performance requirements for level IIE fi
45、eld testers73 6.4 Accuracy performance requirements for level III field testers.75 6.5 Accuracy performance requirements for level IIIE field testers.77 6.6 Accuracy performance requirements for level IV field testers.79 6.7 Accuracy performance requirements for level IV field testers over 600 MHz 8
46、1 6.8 Field tester requirements applicable to alien crosstalk measurements .81 6.9 Procedures for determining field tester parameters .81 6.9.1 General .81 6.9.2 Output signal balance (OSB) 82 6.9.3 Common mode rejection (CMR) .82 6.9.4 Residual NEXT 83 6.9.5 Dynamic accuracy .84 6.9.6 Source/load r
47、eturn loss85 6.9.7 Random noise floor .85 6.9.8 Residual FEXT 85 6.9.9 Directivity 86 6.9.10 Tracking 87 6.9.11 Source match 87 6.9.12 Return loss of remote termination87 6.9.13 Constant error term of the propagation delay measurement function88 6.9.14 Error constant term proportional to propagation
48、 delay of the propagation delay measurement function.88 6.9.15 Constant error term of the delay skew measurement function 88 6.9.16 Constant error term of the length measurement function88 6.9.17 Error constant proportional to length of the length measurement function .88 6.9.18 Constant error term
49、of the d.c. resistance measurement function.88 6.9.19 Error constant term proportional to d.c. resistance of the d.c. resistance measurement function 89 6.9.20 Measurement floor for alien crosstalk testing during field testing .89 6.9.21 Measurement floor of the test device for the channel test configuration .89 6.10 Measurement error models90 6.10.1 General .90 6.10.2 Error model for the insertion loss measurement function .90 6.10.3 Error model for the NEXT me
