EN 50173-5-2018 en Information technology - Generic cabling systems - Part 5 Data centre spaces.pdf

1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Information technology - Generic cabling systemsPart 5: Data centre spacesBS EN 50173-5:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50173-5 June 2018 ICS 33.040.50 Supersedes EN 50173-5:2007 English Version

2、 Information technology - Generic cabling systems - Part 5: Data centre spaces Technologies de linformation - Systmes de cblage gnrique - Partie 5: Espaces de centres de traitement de donnes Informationstechnik - Anwendungsneutrale Kommunikationskabelanlagen - Teil 5: Rechenzentrumsbereiche This Eur

3、opean 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 European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical referenc

4、es 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 versions (English, French, German). A version in any other language made by translation under the responsibility of a CE

5、NELEC 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 committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugosl

6、av Republic of Macedonia, 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 Electrotechnica

7、l Standardization Comit 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

8、. EN 50173-5:2018 E National forewordThis British Standard is the UK implementation of EN 50173-5:2018. It supersedes BS EN 50173-5:2007+A2:2012, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee TCT/7, Telecommunications - Installation requirements.A li

9、st of organizations represented on 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

10、Limited 2018ISBN 978 0 580 51259 9ICS 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 Te

11、xt affectedBRITISH STANDARDBS EN 50173-5:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50173-5 June 2018 ICS 33.040.50 Supersedes EN 50173-5:2007 English Version Information technology - Generic cabling systems - Part 5: Data centre spaces Technologies de linformation - Systmes de cblage

12、gnrique - Partie 5: Espaces de centres de traitement de donnes Informationstechnik - Anwendungsneutrale Kommunikationskabelanlagen - Teil 5: Rechenzentrumsbereiche This European Standard was approved by CENELEC on 2018-03-19. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulati

13、ons 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 CEN-CENELEC Management Centre or to any CENELEC memb

14、er. 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 own language and notified to the CEN-CENELEC Management Centre has the same status as the official version

15、s. CENELEC members are the national electrotechnical committees 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 N

16、etherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, 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 M

17、anagement 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 50173-5:2018 E BS EN 50173-5:2018BS EN 50173-5:2018EN 50173-5:2018 (E) 2 Contents Page European foreword . 5 Introduction .

18、 6 1 Scope and conformance . 9 1.1 Scope 9 1.2 Conformance 9 2 Normative references 10 3 Terms, definitions and abbreviations 10 3.1 Terms and definitions . 10 3.2 Abbreviations . 12 4 Structure of the generic cabling system in computer room spaces of data centres . 12 4.1 General 12 4.2 Functional

19、elements 12 4.3 Structure and hierarchy 13 4.4 Cabling subsystems 14 4.4.1 Data centre cabling subsystems 14 4.4.2 Associated cabling subsystems 15 4.5 Design objectives 16 4.5.1 General 16 4.5.2 Zone distribution cabling 16 4.5.3 Intermediate distribution cabling . 16 4.5.4 Main distribution cablin

20、g 16 4.5.5 Network access cabling 16 4.5.6 Tie cabling 17 4.6 Accommodation of functional elements . 18 4.6.1 General 18 4.6.2 Equipment Outlets . 18 4.6.3 Distributors 18 4.6.4 Cables . 18 4.6.5 Local Distribution Points 18 4.6.6 External Network Interface . 18 4.7 Interfaces 18 4.7.1 Equipment int

21、erfaces and test interfaces . 18 4.7.2 Channels and links 20 4.8 Dimensioning and configuration . 20 4.8.1 Distributors 20 4.8.2 Cables . 20 4.8.3 Connecting hardware 20 BS EN 50173-5:2018EN 50173-5:2018 (E) 3 4.8.4 Cords. 20 4.8.5 Equipment Outlets and Local Distribution Points . 21 4.8.6 External

22、Network Interface . 21 5 Channel performance in computer room spaces of data centres 22 5.1 General 22 5.2 Environmental performance . 23 5.3 Transmission performance. 23 5.3.1 General 23 5.3.2 Balanced cabling . 23 5.3.3 Optical fibre cabling 24 6 Reference implementations in computer room spaces o

23、f data centres 24 6.1 General 24 6.2 Balanced cabling . 24 6.2.1 General 24 6.2.2 Zone distribution cabling 24 6.2.3 Intermediate distribution cabling . 29 6.2.4 Main distribution cabling 30 6.2.5 Network access cabling 32 6.3 Optical fibre cabling 34 6.3.1 General 34 6.3.2 Component choice 35 6.3.3

24、 Dimensions 35 7 Cable requirements in computer room spaces of data centres . 35 7.1 General 35 7.2 Balanced cables of Category 5, 6, 6A, 7, 7A, 8.1 and 8.2. 35 7.3 Optical fibre cables of Category OM3, OM4, OM5, OS1a and OS2 . 35 8 Connecting hardware requirements in computer room spaces of data ce

25、ntres 35 8.1 General requirements 35 8.2 Balanced connecting hardware . 36 8.2.1 General requirements 36 8.2.2 Electrical, mechanical and environmental performance . 36 8.3 Optical fibre connecting hardware 36 8.3.1 General requirements 36 8.3.2 Optical, mechanical and environmental performance . 37

26、 9 Requirements for cords and jumpers in computer room spaces of data centres 37 9.1 Jumpers 37 9.2 Balanced cords of Category 5, 6, 6A, 7, 7A, 8.1 and 8.2 37 9.2.1 General 37 9.2.2 Additional requirements for certain cords 37 BS EN 50173-5:2018EN 50173-5:2018 (E) 4 9.3 Optical fibre cords of Catego

27、ry OM3, OM4, OM5, OS1a and OS2 37 Annex A (normative) Link performance limits 38 A.1 General 38 A.2 Balanced cabling . 39 A.3 Optical fibre cabling 39 Annex B (normative) Usage of high density connecting hardware within optical fibre cabling . 40 B.1 General 40 B.2 Examples of cabling configurations

28、 using high density connecting hardware . 40 B.3 Channel performance 40 Annex C (normative) Combination of balanced cabling links 43 C.1 General 43 C.2 Requirements . 43 Bibliography 44 Figures Figure 1 Schematic relationship between the EN 50173 series and other relevant standards . 7 Figure 2 Stru

29、cture of generic cabling 13 Figure 3 Hierarchical topology of generic cabling . 14 Figure 4 Examples of cabling implementation to improve reliability . 17 Figure 5 Example of accommodation of functional elements. 18 Figure 6 Test and equipment interfaces 19 Figure 7 The External Network Interface .

30、21 Figure 8 Example of a channel . 22 Figure 9 Example of a system showing the location of cabling interfaces . 23 Figure 10 Zone distribution cabling models . 27 Figure 11 Intermediate distribution cabling model 29 Figure 12 Main distribution cabling model 31 Figure 13 Network access cabling model

31、. 33 Figure A.1 Link options . 38 Figure B.1 Examples of high density connecting hardware within main distribution cabling 41 Figure B.2 Examples of high density connecting hardware at the LDP and EO within zone distribution cabling 42 Figure C.1 Examples of combination of different links . 43 Table

32、s Table 1 Contextual relationship between EN 50173 series and other standards relevant for information technology cabling systems 7 Table 2 Zone distribution channel equations . 28 Table 3 Intermediate distribution channel equations 30 Table 4 Main distribution channel equations 32 Table 5 Network a

33、ccess cabling channel equations 34 BS EN 50173-5:2018EN 50173-5:2018 (E) 5 European foreword This document (EN 50173-5:2018) has been prepared by the Technical Committee CENELEC TC 215 “Electrotechnical aspects of telecommunication equipment“. The following dates are fixed: latest date by which this

34、 document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2019-03-19 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2021-03-19 This document supersedes EN 50173-5:2007 + A1:2010 +

35、AC:2011 + A2:2012. The European Standards EN 50173:1995 and EN 50173-1:2002 have been developed to enable the application-independent cabling to support ICT applications in office premises. Their basic principles, however, are applicable to other types of applications and in other types of premises.

36、 TC 215 has decided to establish relevant European Standards which address the specific requirements of these premises. In order to point out the commonalities of these cabling design standards, these EN are published as individual parts of the series EN 50173, thus also acknowledging that standards

37、 users recognize the designation “EN 50173” as a synonym for generic cabling design. At the time of publication of this European Standard, series EN 50173 comprises the following standards: EN 50173-1 Information technology Generic cabling systems Part 1: General requirements EN 50173-2 Information

38、technology Generic cabling systems Part 2: Office spaces EN 50173-3 Information technology Generic cabling systems Part 3: Industrial spaces EN 50173-4 Information technology Generic cabling systems Part 4: Homes EN 50173-5 Information technology Generic cabling systems Part 5: Data centre spaces EN

39、 50173-6 Information technology Generic cabling systems Part 6: Distributed building services This edition of EN 50173-5: a) introduces new components 8.1 and 8.2 for balanced cabling to support new channel Classes I and II as well as optical fibre cabling (OM5) as defined in EN 50173-1:2018; b) cla

40、rifies that the cabling defined in this standard applies to computer rooms in data centres; c) aligns the document structure across the EN 50173 series and updates the document both technically and editorially. BS EN 50173-5:2018EN 50173-5:2018 (E) 6 Introduction The importance of cabling infrastruc

41、ture is similar to that of other fundamental utilities such as water and energy supply and interruptions to the services provided over that infrastructure can have a serious impact. A lack of design foresight, the use of inappropriate components, incorrect installation, poor administration or inadeq

42、uate support can threaten quality of service and have commercial consequences for all types of users. This standard specifies generic cabling within computer room spaces in data centre premises, or data centre spaces within other types of building. Additionally those premises can include: office spa

43、ces for which generic cabling is specified in EN 50173-2; industrial spaces for which generic cabling is specified in EN 50173-3. Generic cabling for distributed building services in data centre spaces is specified in EN 50173-6 which addresses all of the above premises and spaces within them. Figur

44、e 1 and Table 1 show the schematic and contextual relationships between the standards produced by TC 215 for information technology cabling, namely: 1) this and other parts of the EN 50173 series; 2) installation (EN 50174 series); 3) bonding (EN 50310). BS EN 50173-5:2018EN 50173-5:2018 (E) 7 Figur

45、e 1 Schematic relationship between the EN 50173 series and other relevant standards Table 1 Contextual relationship between EN 50173 series and other standards relevant for information technology cabling systems Building design phase Generic cabling design phase Specification phase Installation phas

46、e Operation phase EN 50310 EN 50173-2 EN 50173-3 EN 50173-4 EN 50173-5 EN 50173-6 (these ENs reference general requirements of EN 50173-1) EN 50174-1 EN 50174-2 EN 50174-3 EN 50310 EN 50174-1 Planning phase EN 50174-2 EN 50174-3 EN 50310 In addition, a number of Technical Reports have been developed

47、 to support or extend the application of these standards, including: CLC/TR 50173-99-1, Cabling guidelines in support of 10 GBASE-T; BS EN 50173-5:2018EN 50173-5:2018 (E) 8 CLC/TR 50173-99-2, Information technology Implementation of BCT applications using cabling in accordance with EN 50173-4; CLC/T

48、R 50173-99-3, Information technology Generic cabling systems Part 99-3: Home cabling infrastructures up to 50 m in length to support simultaneous and non simultaneous provision of applications. In addition, a number of cabling design standards have been developed using components of EN 50173-1 (e.g.

49、 EN 50098 series and EN 50700). The generic cabling specified by this standard provides users with: an application independent system capable of supporting a wide range of applications in a range of installation and operating environments; a flexible scheme such that modifications are both easy and economical; a multi-vendor supply chain within an open market for cabling components. In addition this standard provides: a) relevant industry professionals with g