1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Information technology - Generic cabling systemsPart 1: General requirementsBS EN 501731:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50173-1 June 2018 ICS 33.040.50 Supersedes EN 50173-1:2011English Version
2、 Information technology - Generic cabling systems - Part 1: General requirements Technologies de linformation - Systmes de cblage gnrique - Partie 1: Exigences gnrales Informationstechnik - Anwendungsneutrale Kommunikationskabelanlagen - Teil 1: Allgemeine Anforderungen This European Standard was ap
3、proved by CENELEC on 2018-03-19. 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 any alteration.Up-to-date lists and bibliographical references concerning such nat
4、ional standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This 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
5、own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedon
6、ia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comi
7、t Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50173-1:2018 ENat
8、ional forewordThis British Standard is the UK implementation of EN 501731:2018. It supersedes BS EN 501731:2011, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee TCT/7, Telecommunications Installation requirements.A list of organizations represented on
9、this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 51255 1I
10、CS 33.040.50Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 5
11、01731:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50173-1 June 2018 ICS 33.040.50 Supersedes EN 50173-1:2011English Version Information technology - Generic cabling systems - Part 1: General requirements Technologies de linformation - Systmes de cblage gnrique - Partie 1: Exigences gnra
12、les Informationstechnik - Anwendungsneutrale Kommunikationskabelanlagen - Teil 1: Allgemeine Anforderungen This European Standard was approved by CENELEC on 2018-03-19. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Europe
13、an 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 CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versio
14、ns (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 CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical commi
15、ttees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slo
16、vakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 20
17、18 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50173-1:2018 EBS EN 501731:2018EN 50173-1:2018 (E) Contents Page European foreword . 12 Introduction . 13 1 Scope and conformance 15 1.1 Scope . 15 1.2 Conformance 15 2 Normative re
18、ferences . 16 3 Terms, definitions and abbreviations . 22 3.1 Terms and definitions . 22 3.2 Abbreviations 31 3.3 Symbols 33 4 Structure of generic backbone cabling . 33 4.1 General . 33 4.2 Functional elements . 34 4.3 Structure and hierarchy 34 4.4 Cabling subsystems . 36 4.5 Design objectives . 3
19、6 4.6 Accommodation of functional elements . 37 4.7 Interfaces 37 4.8 Dimensioning and configuring 38 5 Channel performance . 39 5.1 Environmental performance . 39 5.2 Transmission performance . 41 6 Reference implementations for backbone cabling . 75 6.1 General . 75 6.2 Balanced cabling 75 6.3 Coa
20、xial cabling . 78 6.4 Optical fibre cabling 78 7 Cable requirements 78 7.1 General . 78 7.2 Operating environment . 79 7.3 Balanced cables of Categories 5, 6, 6A, 7, 7A, BCT-B, 8.1 and 8.2 . 79 7.4 Coaxial cables 81 7.5 Optical fibre cables . 81 8 Connecting hardware requirements . 83 8.1 General re
21、quirements 83 8.2 Category 5, 6, 6A, 7, 7A, BCT-B, 8.1 and 8.2 and connecting hardware for balanced cabling 88 8.3 Category BCT-C connecting hardware for coaxial cabling 94 8.4 Optical fibre connecting hardware 96 9 Requirements for cords and jumpers . 99 9.1 General . 99 9.2 Operating environment .
22、 99 9.3 Category 5, 6, 6A, 7, 7A, BCT-B, 8.1 and 8.2 cords for balanced cabling 99 9.4 Coaxial cords 105 9.5 Optical fibre cords 105 Annex A (normative) Link performance limits 107 A.1 General . 107 BS EN 501731:2018EN 50173-1:2018 (E) 3 A.2 Balanced cabling 107 A.2.1 General . 107 A.2.2 Return loss
23、 . 108 A.2.3 Insertion loss 109 A.2.4 Near-end crosstalk loss 110 A.2.5 Attenuation to crosstalk loss ratio at the near-end . 113 A.2.6 Attenuation to crosstalk loss ratio at the far-end 113 A.2.7 Direct current loop resistance 116 A.2.8 Direct current resistance unbalance. 116 A.2.9 Propagation del
24、ay 117 A.2.10 Delay skew . 118 A.2.11 Transverse conversion loss . 119 A.2.12 Equal level transverse conversion transfer loss (ELTCTL) 119 A.2.13 Coupling attenuation 119 A.2.14 Alien near-end crosstalk . 120 A.2.15 Alien attenuation to crosstalk ratio at the far end . 120 A.3 Coaxial cabling . 120
25、A.3.1 Return loss . 120 A.3.2 Insertion loss 120 A.3.3 Direct current loop resistance 120 A.3.4 Direct current carrying capacity 121 A.3.5 Operating voltage . 121 A.3.6 Screening attenuation 121 A.4 Optical fibre cabling 121 Annex B (informative) Permanent link performance limits for maximum impleme
26、ntations (balanced and coaxial cabling) . 122 B.1 Balanced cabling 122 B.1.1 General . 122 B.1.2 Performance limits 122 B.2 Coaxial cabling . 128 B.2.1 General . 128 B.2.2 Insertion loss 128 B.2.3 Direct current loop resistance 128 Annex C (informative) Information on all-silica optical fibres in th
27、e previous edition 129 C.1 Cabled singlemode optical fibres of Category OS1 . 129 C.2 Cabled multimode optical fibres of Category OM1 and OM2 129 C.2.1 Cable specification . 129 C.2.2 Application support . 129 Annex D (normative) Electrical, mechanical and environmental requirements of balanced conn
28、ecting hardware 132 D.1 General . 132 D.2 Electrical performance of Category 5, 6, 6A, 7, 7A, BCT-B, 8.1 and 8.2 connecting hardware 132 D.2.1 Return loss . 132 D.2.2 Insertion loss 133 D.2.3 Near-end crosstalk loss 134 D.2.4 Power sum near-end crosstalk loss . 135 D.2.5 Far-end crosstalk loss 136 B
29、S EN 501731:2018EN 50173-1:2018 (E) D.2.6 Power sum far-end crosstalk loss 137 D.2.7 Input to output resistance . 138 D.2.8 Input to output resistance unbalance . 138 D.2.9 Current carrying capacity . 139 D.2.10 Propagation delay 139 D.2.11 Delay skew . 140 D.2.12 Unbalance attenuation . 140 D.2.13
30、Transfer impedance . 142 D.2.14 Coupling attenuation 143 D.2.15 Dielectric performance . 144 D.2.16 Power sum alien near-end crosstalk loss 145 D.2.17 Power sum alien far-end crosstalk loss . 146 D.3 Mechanical and environmental performance . 147 D.3.1 General . 147 D.3.2 Solderless connections 147
31、D.3.3 Free and fixed connectors (modular plugs and jacks) . 148 D.3.4 Other connecting hardware 149 Annex E (informative) Electromagnetic characteristics of balanced cabling . 151 Annex F (informative) Supported applications 152 F.1 Supported applications for balanced cabling . 152 F.2 Supported app
32、lications for coaxial cabling . 156 F.3 Supported applications for optical fibre cabling . 157 F.3.1 Generic applications . 157 F.3.2 Data centre (computer room space) applications 160 F.3.3 Industrial space applications 162 Annex G (informative) Introduction to environmental classification 163 G.1
33、General . 163 G.2 The application of environmental classification 163 G.2.1 MICE 163 G.2.2 The channel environment . 163 Figure G.1 Variation of the environment along a cabling channel . 163 Figure G.2 The local environment . 164 G.2.3 Component selection . 164 G.3 The MICE system . 164 G.4 Guidance
34、 with respect to environmental classification 170 G.4.1 Mechanical environment 170 G.4.2 Ingress protection environment 170 G.4.3 Climatic and chemical environment . 170 G.4.4 Electromagnetic environment . 170 Annex H (informative) Acronyms for balanced cables 172 Annex I (normative) Testing procedu
35、res to assess conformance with EN 50173 standards . 174 I.1 General . 174 I.2 Channel and link performance testing 174 I.2.1 General . 174 I.2.2 Testing balanced cabling channels and links . 175 I.2.3 Testing optical fibre cabling channels and links . 175 I.2.4 Channel and link test schedules 175 BS
36、 EN 501731:2018EN 50173-1:2018 (E) 5 Bibliography 178 Figures Figure 1 Schematic relationship between the EN 50173 series and other relevant standards 13 Figure 2 Structure of generic cabling 34 Figure 3 Hierarchical structure of generic cabling 35 Figure 4 Interconnect and cross-connect models . 35
37、 Figure 5 Examples of backbone cabling implementations to improve reliability 37 Figure 6 Test and equipment interfaces for backbone cabling . 38 Figure 7 Backbone cabling model 76 Figure 8 Pin grouping and pair assignments for EN 60603-7 series connecting hardware of Categories 5, 6, 6A and 8.1 (fr
38、ont view of fixed connector) . 92 Figure 9 Pin grouping and pair assignments for EN 60603-7 series connecting hardware of Categories 7, 7A, BCT-B and 8.2 (front view of fixed connector) 92 Figure 10 Pin grouping and pair assignments for EN 61076-3-104 connecting hardware (front view of fixed connect
39、or) . 93 Figure 11 Four position jack pin and pair grouping assignments for EN 61076-2-101 connecting hardware (front view of connector) 93 Figure 12 Four position jack pin and pair grouping assignments for EN 61076-2-109 connecting hardware (front view of fixed connector) . 94 Figure 13 Conductor a
40、ssignment of EN 61169-2 (Type 9,52) and EN 61169-24 (Type F) 96 Figure 14 Optical fibre assignments for connecting hardware for two optical fibres 98 Figure 15 Optical fibre assignments for connecting hardware for 12 and 24 optical fibres (front view of fixed or free connector) 99 Figure A.1 Link op
41、tions . 107 Figure G.1 Variation of the environment along a cabling channel 163 Figure G.2 The local environment 164 Figure G.3 Noise Ranges of Common Industrial Machine Devices . 171 Figure H.1 Balanced cable naming schema . 172 Figure H.2 Balanced cable construction types . 173 BS EN 501731:2018EN
42、 50173-1:2018 (E) Tables Table 1 Contextual relationship between EN 50173 series and other standards relevant for information technology cabling systems. 14 Table 2 Channel environments . 39 Table 3 Details of Environmental Classification . 40 Table 4 Formulae for RL limits for a channel 43 Table 5
43、RL limits for a channel at key frequencies . 44 Table 6 Formulae for IL limits for a channel . 45 Table 7 IL limits for a channel at key frequencies 46 Table 8 Formulae for NEXT limits for a channel . 47 Table 9 NEXT limits for a channel at key frequencies 48 Table 10 Formulae for PSNEXT limits for
44、a channel 49 Table 11 PSNEXT limits for a channel at key frequencies . 50 Table 12 ACR-N limits for a channel at key frequencies 51 Table 13 PSACR-N limits for a channel at key frequencies . 52 Table 14 Formulae for ACR-F limits for a channel . 53 Table 15 ACR-F limits for a channel at key frequenci
45、es 54 Table 16 Formulae for PSACR-F limits for a channel 55 Table 17 PSACR-F limits for a channel at key frequencies 56 Table 18 DCLR limits for a channel 57 Table 19 d.c. resistance unbalance limits for a channel . 57 Table 20 Formulae for propagation delay limits for a channel 59 Table 21 Propagat
46、ion delay limits for a channel at key frequencies 59 Table 22 Delay skew limits for a channel . 60 Table 23 Formulae for TCL limits for a cabling channel . 61 Table 24 TCL limits for a cabling channel at key frequencies 62 Table 25 Formulae for ELTCTL limits for a cabling channel 64 Table 26 ELTCTL
47、limits for a cabling channel at key frequencies . 65 Table 27 Formulae for coupling attenuation limits for a screened cabling channel . 66 Table 28 Coupling attenuation limits for a screened cabling channel at key frequencies 67 BS EN 501731:2018EN 50173-1:2018 (E) 7 Table 29 Formulae for PSANEXT li
48、mits for a channel . 68 Table 30 PSANEXT limits for a channel at key frequencies . 69 Table 31 Formulae for coupling attenuation to meet PSANEXT limits . 69 Table 32 Formulae for PSANEXTavglimits for a channel 70 Table 33 PSANEXTavglimits for a channel at key frequencies . 70 Table 34 Formulae for P
49、SAACR-F limits for a channel 71 Table 35 PSAACR-F limits for a channel at key frequencies . 71 Table 36 Formulae for coupling attenuation to meet PSAACR limits . 71 Table 37 Formulae for PSAACR-Favglimits for a channel 72 Table 38 PSAACR-Favglimits for a channel at key frequencies . 72 Table 39 RL limits for a Class BCT-C channel . 73 Table 40 Formulae for IL limits for a Class BCT-C channel . 73 Table 41 IL limits for a Cl
