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1、BRITISH STANDARD BS EN 50173-2:2007 Information technology Generic cabling systems Part 2: Office premises The European Standard EN 50173-2:2007 has the status of a British Standard ICS 33.040.50 ? Licensed Copy: London South Bank University, London South Bank University, Sat Sep 01 03:19:49 GMT+00:
2、00 2007, Uncontrolled Copy, (c) BSI BS EN 50173-2:2007 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2007 BSI 2007 ISBN 978 0 580 56053 8 National foreword This British Standard is the UK implementation of EN 50173-2:2007. Togethe
3、r with BS EN 50173-1:2007 it supersedes BS EN 50173-1:2002 which is withdrawn.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 this committee can be obtained on request to its sec
4、retary. In addition to the requirements listed in Clause 1.2, conformance to BS EN 50173-2:2007 also requires the application of BS 6701. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a Brit
5、ish Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South Bank University, Sat Sep 01 03:19:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 50173-2 NORME EUROPENNE
6、 EUROPISCHE NORM May 2007 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2007 CENELEC - All rights of exploitation in any form
7、and by any means reserved worldwide for CENELEC members. Ref. No. EN 50173-2:2007 E ICS 33.040.50 Partially supersedes EN 50173-1:2002 English version Information technology - Generic cabling systems - Part 2: Office premises Technologies de linformation - Systmes de cblage gnrique - Partie 2: Locau
8、x du secteur tertiaire Informationstechnik - Anwendungsneutrale Kommunikationskabelanlagen - Teil 2: Brogebude This European Standard was approved by CENELEC on 2007-04-11. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Eu
9、ropean 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 European Standard exists in three official versions (E
10、nglish, 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 are the national electrotechnical committees of Austri
11、a, Belgium, Bulgaria, 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. Lic
12、ensed Copy: London South Bank University, London South Bank University, Sat Sep 01 03:19:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 50173-2:2007 2 Foreword This European Standard was prepared by the Technical Committee CENELEC TC 215, Electrotechnical aspects of telecommunication equipment. Th
13、e text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50173-2 on 2007-04-11. 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) 2008-05-01 latest
14、 date by which the national standards conflicting with the EN have to be withdrawn (dow) 2010-05-01 The previous editions of 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 ba
15、sic principles, however, are applicable to other types of applications and in other types of premises. 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, the
16、se EN are published as individual parts of the series EN 50173, thus also acknowledging that standards 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
17、-1 Information technology Generic cabling systems Part 1: General requirements EN 50173-2 Information technology Generic cabling systems Part 2: Office premises EN 50173-3 Information technology Generic cabling systems Part 3: Industrial premises EN 50173-4 Information technology Generic cabling sys
18、tems Part 4: Homes EN 50173-5 Information technology Generic cabling systems Part 5: Data centres This European Standard, EN 50173-2, together with EN 50173-1:2007 supersedes, EN 50173-1:2002. It is an editorial revision of EN 50173-1:2002 and contains those specifications of EN 50173-1:2002, which
19、are relevant to generic cabling systems to be operated in office premises, referencing the general requirements of EN 50173-1:2007. Licensed Copy: London South Bank University, London South Bank University, Sat Sep 01 03:19:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSI - 3 - EN 50173-2:2007 Contents
20、 Introduction .5 1 Scope and conformance 8 1.1 Scope .8 1.2 Conformance8 2 Normative references .9 3 Definitions and abbreviations9 3.1 Definitions.9 3.2 Abbreviations10 4 Structure of the generic cabling system in office premises 10 4.1 General.10 4.2 Functional elements11 4.3 General structure and
21、 hierarchy11 4.4 Cabling subsystems12 4.5 Accommodation of functional elements.13 4.6 Interfaces14 4.7 Dimensioning and configuring.14 5 Channel performance in office premises18 5.1 General.18 5.2 Environmental performance19 5.3 Transmission performance19 6 Reference implementations in office premis
22、es 21 6.1 General.21 6.2 Balanced cabling.21 6.3 Optical fibre cabling 24 7 Cable requirements in office premises26 7.1 General.26 7.2 Balanced cables .26 7.3 Optical fibre cables .26 8 Connecting hardware requirements in office premises.27 8.1 General requirements .27 8.2 Connecting hardware for ba
23、lanced cabling .27 8.3 Connecting hardware for optical fibre cabling27 Licensed Copy: London South Bank University, London South Bank University, Sat Sep 01 03:19:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 50173-2:2007 4 9 Requirements for cords and jumpers in office premises.27 9.1 Jumpers27
24、9.2 Balanced cords.28 9.3 Optical fibre cords.28 Annex A (normative) Link performance limits.29 Bibliography 30 Figures Figure 1 - Schematic relationship between the EN 50173 series and other relevant standards .6 Figure 2 - Structure of generic cabling.11 Figure 3 - Hierarchical structure of generi
25、c cabling12 Figure 4 - Structures for centralised generic cabling12 Figure 5 - Accommodation of functional elements .13 Figure 6 - Test and equipment interfaces 14 Figure 7 - Example of a generic cabling system with combined BD and FD.15 Figure 8 - Connection of functional elements providing redunda
26、ncy16 Figure 9 - Example of a horizontal channel18 Figure 10 - Example of a system showing the location of cabling interfaces19 Figure 11 - Horizontal cabling models .23 Figure 12 - Combined optical fibre backbone/horizontal channels .25 Figure A.1 - Link options29 Tables Table 1 - Contextual relati
27、onship between EN 50173 series and other standards relevant for information technology cabling systems7 Table 2 - Maximum channel lengths for reference implementations 15 Table 3 - Horizontal channel equations24 Table 4 - Optical fibre channel equations.26 Licensed Copy: London South Bank University
28、, London South Bank University, Sat Sep 01 03:19:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSI - 5 - EN 50173-2:2007 Introduction The importance of the information technology cabling infrastructure is similar to that of other utilities such as heating, lighting and electricity supplies. As with othe
29、r utilities, interruptions to service can have serious impact. Poor quality of service due to lack of planning, use of inappropriate components, incorrect installation, poor administration or inadequate support can threaten an organisations effectiveness. Historically, the cabling within premises co
30、mprised both application-specific and multipurpose networks. Standards within the EN 50173 series have enabled a controlled migration to generic cabling (with an associated reduction in the use of application-specific cabling) and supported the development of high data rate applications based upon d
31、efined cabling models. This European Standard, EN 50173-2, has been prepared to reflect the demands of generic cabling within office premises and provides: a) users with an application independent generic cabling system and an open market for cabling components; b) users with a flexible cabling sche
32、me such that modifications are both easy and economical; c) building professionals (for example, architects) with guidance allowing the accommodation of cabling before specific requirements are known; i.e., in the initial planning either for construction or refurbishment; d) industry and standardisa
33、tion bodies with a cabling system which supports current products and provides a basis for future product development and applications standardisation. This European Standard specifies multi-vendor cabling, and is related to: - the associated standard covering general requirements for generic cablin
34、g within premises (EN 50173-1); - standards for cabling components developed by Technical Committees of CENELEC and/or IEC; - standards for the quality assurance and installation of information technology cabling (series EN 50174) and testing of installed cabling (EN 50346); - applications developed
35、 by the technical bodies of IEC (including the subcommittees of ISO/IEC JTC 1) and study groups of ITU-T. The applications listed in EN 50173-1:2007, Annex F, have been analysed to determine the requirements for a generic cabling system. These requirements, together with statistics concerning premis
36、es geography from different countries and the models described in Clause 6, have been used to develop the requirements for cabling components and to stipulate their arrangement into cabling systems. As a result, generic cabling defined within this European Standard is targeted at, but not limited to
37、, office premises. It is anticipated that the generic cabling system meeting the minimum requirements of this European Standard will have a life expectancy in excess of ten years. Licensed Copy: London South Bank University, London South Bank University, Sat Sep 01 03:19:49 GMT+00:00 2007, Uncontrol
38、led Copy, (c) BSI EN 50173-2:2007 6 Figure 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) application dependent cabling design (e.g. EN 50098 series)
39、; 3) installation (EN 50174 series); 4) testing of installed cabling (EN 50346); 5) equipotential bonding requirements (EN 50310). EN 50173-1: Information technology - Generic cabling - General requirements EN 50098-1: Customer premises cabling for information technology - ISDN basic access EN 50174
40、-2: Information technology - Cabling installation - Installation planning and practices inside buildings EN 50174-3: Information technology - Cabling installation - Installation planning and practices outside buildings EN 50174-1: Information technology - Cabling installation - Specification and qua
41、lity assurance EN 50310: Application of equipotential bonding and earthing in buildings with information technology equipment EN 50098-2: Customer premises cabling for information technology - 2048 kbit/s ISDN primary access and leased line network interface EN 50346: Information technology - Cablin
42、g installation - Testing of installed cabling EN 50173-2: Information technology - Generic cabling - Office premises EN 50173-3: Information technology - Generic cabling - Industrial premises EN 50173-4: Information technology - Generic cabling - Homes EN 50173-5: Information technology - Generic ca
43、bling - Data centres EN 50173-1: Information technology - Generic cabling - General requirements EN 50098-1: Customer premises cabling for information technology - ISDN basic access EN 50174-2: Information technology - Cabling installation - Installation planning and practices inside buildings EN 50
44、174-3: Information technology - Cabling installation - Installation planning and practices outside buildings EN 50174-1: Information technology - Cabling installation - Specification and quality assurance EN 50310: Application of equipotential bonding and earthing in buildings with information techn
45、ology equipment EN 50098-2: Customer premises cabling for information technology - 2048 kbit/s ISDN primary access and leased line network interface EN 50346: Information technology - Cabling installation - Testing of installed cabling EN 50173-2: Information technology - Generic cabling - Office pr
46、emises EN 50173-3: Information technology - Generic cabling - Industrial premises EN 50173-4: Information technology - Generic cabling - Homes EN 50173-5: Information technology - Generic cabling - Data centres NOTE For the purposes of the standards in the EN 50173 and EN 50174 series the term “info
47、rmation technology” includes ICT, BCT and CCCB applications. Figure 1 - Schematic relationship between the EN 50173 series and other relevant standards Licensed Copy: London South Bank University, London South Bank University, Sat Sep 01 03:19:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSI - 7 - EN 5
48、0173-2:2007 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 phase Operation phase EN 50310 EN 50173 series except EN 50173-4 EN 50174-
49、1 EN 50174-1 5.2: Common bonding network (CBN) within a building 6.3: AC distribution system and bonding of the protective conductor (TN-S) 4: Structure 5: Channel performance 7: Cable requirements 8: Connecting hardware requirements 9: Requirements for cords and jumpers A: Link performance limits 4 Requirements for installers 5: Requirements for premises owners 5: Requirements for premises owners Planning phase and EN 50173-4 EN 50174-2 EN 50174-2