1、BRITISH STANDARDBS EN60917-2-3:2006Modular order for the development of mechanical structures for electronic equipment practices Part 2-3: Sectional specification Interface co-ordination dimensions for the 25 mm equipment practice Extended detail specification Dimensions for subracks, chassis, backp
2、lanes, front panels and plug-in units The European Standard EN 60917-2-3:2006 has the status of a British StandardICS 31.240g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g5
3、3g44g42g43g55g3g47g36g58BS EN 60917-2-3:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2006 BSI 2006ISBN 0 580 48896 9National forewordThis British Standard is the official English language version of EN 60917-2-3:2006. It is i
4、dentical with IEC 60917-2-3:2006.The UK participation in its preparation was entrusted to Technical Committee EPL/48, Electromechanical components and mechanical structures for electronic equipment, which has the responsibility to: A list of organizations represented on this committee can be obtaine
5、d on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of th
6、e BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enqu
7、irers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.Summary of pagesThis document
8、comprises a front cover, an inside front cover, the EN title page, pages 2 to 35 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARD EN 60917-2-3 NORME EUROPENNE EU
9、ROPISCHE NORM July 2006 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 2006 CENELEC - All rights of exploitation in any form an
10、d by any means reserved worldwide for CENELEC members. Ref. No. EN 60917-2-3:2006 E ICS 31.240 English version Modular order for the development of mechanical structures for electronic equipment practices Part 2-3: Sectional specification - Interface co-ordination dimensions for the 25 mm equipment
11、practice -Extended detail specification - Dimensions for subracks, chassis, backplanes, front panels and plug-in units (IEC 60917-2-3:2006) Ordre modulaire pour le dveloppement des structures mcaniques pour les infrastructures lectroniques Partie 2-3: Norme intermdiaire - Dimensions de coordination
12、pour les interfaces des infrastructures au pas de 25 mm - Spcification particulire tendue - Dimensions pour bacs, chssis, fonds de panier, faces avant et blocs enfichables (CEI 60917-2-3:2006) Modulordnung fr die Entwicklung von Bauweisen fr elektronische Einrichtungen Teil 2-3: Strukturnorm Schnitt
13、stellen-Koordinationsmae fr die 25-mm-Bauweise Erweiterte Manorm Mae fr Baugruppentrger, Einschbe, Rckplatten, Frontplatten und steckbare Baugruppen (IEC 60917-2-3:2006) This European Standard was approved by CENELEC on 2006-06-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Re
14、gulations 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 Central Secretariat or to any CENELEC member.
15、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 Central Secretariat has the same status as the official versions. CENELEC mem
16、bers are the national electrotechnical committees of Austria, Belgium, 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
17、, Sweden, Switzerland and the United Kingdom. Foreword The text of document 48D/338/FDIS, future edition 1 of IEC 60917-2-3, prepared by SC 48D, Mechanical structures for electronic equipment, of IEC TC 48, Electromechanical components and mechanical structures for electronic equipment, was submitte
18、d to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60917-2-3 on 2006-06-01. 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) 2007-03-01 latest date by which t
19、he national standards conflicting with the EN have to be withdrawn (dow) 2009-06-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60917-2-3:2006 was approved by CENELEC as a European Standard without any modification. _ EN 60917-2-3:2006 2 3 EN 6
20、0917-2-3:2006 CONTENTS INTRODUCTION.5 1 Scope and object7 2 Normative references .7 3 Terms and definitions .8 4 Arrangement overview 8 5 Subrack dimensions for injector/extractor handle of plug-in units .9 5.1 Subrack interface dimensions 9 6 Dimensions of injector/extractor handle for plug-in unit
21、s 11 6.1 Injector/extractor handle interface dimensions11 6.2 Handle-locking function .13 7 Subrack and plug-in units with electromagnetic shielding provision13 7.1 Subrack interface dimensions for electromagnetic shielding provision.13 7.2 Front panel/plug-in unit interface dimensions16 8 Key/codin
22、g system for subrack and plug-in units .17 8.1 Subrack interface dimensions Key/coding system on the plug-in unit guides 18 8.2 Key dimensions Key/coding system on the plug-in unit guides .19 8.3 Programming of key Key/coding system on the plug-in guides .21 8.4 Keying chamber inspection dimensions
23、21 9 Alignment pin and/or electrical contact for front panels and plug-in units22 9.1 Alignment pins and receptacle plates on the subrack horizontal members.23 9.2 Alignment and/or electrical contact pins and receptacles on the subrack plug-in unit guides .24 10 Electrostatic discharge provision for
24、 plug-in units and subracks.26 10.1 ESD contact interface dimensions27 10.2 ESD strip interface dimensions 27 11 Subrack dimensions for rear-mounted plug-in units .31 Annex A Subrack, plug-in unit and backplane dimensions for using metric connectors.32 Annex ZA (normative) Normative references to in
25、ternational publications with their corresponding European publications35 Figure 1 Typical example of large subracks in a wide cabinet, equipped mass volume of copper/optical cables installation.6 Figure 2 Subject for development of extended connector application packaging and key elements of interc
26、onnection between functional plug-in modules via backplane in the future packaging system .6 Figure 3 Arrangement overview8 Figure 4 Subrack interface dimensions, injector/extractor handles for plug-in units 10 Figure 5 Detail X and detail Y, subrack interface dimensions, injection/extraction handle
27、s for plug-in units11 Figure 6 Plug-in units interface dimensions, injection/extraction handle for plug-in units .12 Figure 7 Detail X and detail Y, plug-in interface dimensions, injector/extractor handles for plug-in units13 Figure 8 Subrack interface dimensions, electromagnetic shielding provision
28、s 14 EN 60917-2-3:2006 4 Figure 9 Detail X and detail Y, subrack interface dimensions, electromagnetic shielding provisions 15 Figure 10 Front panel/plug-in unit interface dimensions, electromagnetic shielding provisions.16 Figure 11 Arrangement of key/coding system for plug-in units.17 Figure 12 Su
29、brack interface dimensions Key/coding system on the plug-in unit guides 18 Figure 13 Plug-in unit interface dimensions Key/coding system on the plug-in unit guides 19 Figure 14 Key dimensions and rotated key positions Key/coding system on the plug-in unit guides 20 Figure 15 Programming of keys21 Fi
30、gure 16 Arrangement of alignment pin system for subracks and plug-in units22 Figure 17 Subrack interface dimensions, alignment pins and receptacle plates on the horizontal members.23 Figure 18 Plug-in unit interface dimensions, alignment pins and receptacle plates on the horizontal members.24 Figure
31、 19 Subrack interface dimensions, alignment and/or electrical contact pin receptacles on the plug-in unit guides .25 Figure 20 Plug-in unit interface dimensions, alignment and/or electrical contact pin receptacles on the plug-in unit guides .26 Figure 21 Subrack interface dimensions, ESD contacts on
32、 the plug-in guides27 Figure 22 Plug-in unit interface dimensions, ESD strips on the plug-in boards .28 Figure 23 Subrack dimensions for rear mounted plug-in units .31 Figure A.1 Subrack, plug-in unit and backplane dimensions for using 2,5 mm metric connectors in accordance with IEC 61076-4-100 .32
33、Figure A.2 Subrack, plug-in unit and backplane dimensions for using 2 mm metric connectors in accordance with IEC 61076-4-101 .33 Figure A.3 Subrack, plug-in unit and backplane dimensions for using 2 mm metric connectors in accordance with IEC 61076-4-104 .34 Table 1 Inspection dimensions of subrack
34、 and plug-in unit keying chambers .21 Table 2 Dimensions of subracks and plug-in units based on IEC 60917-2-2.29 Table 3 Dimensions of subracks and boards for rear-mounted plug-in units.31 5 EN 60917-2-3:2006 INTRODUCTION The dimensions in the detail specification for the 25 mm equipment practice st
35、andard are laid down in the IEC 60917-2 series. Significant progress in electronics circuitry, with increasing signal speed and the demand for high availability of the electronics systems, has made an impact on the structural parts of the equipment, as specified in IEC 60917-2-2. a) Considerations o
36、n the general tendency of the enclosure system At the moment, the general tendencies of the enclosure system for telecom/IT equipment application and associated application are considered to be: the changing form of conventional centralized networking for telecommunication to flexible distributed ne
37、tworking to realize ubiquitous communication and computing environment by broad-band/IP and photonics-networking-based technology; flexible configuration of networking equipment from the open market is requested; a scalable and high-performance packaging/enclosure system is requested for new network
38、ing equipment; in addition, such a packaging/enclosure system will be widely applied for general electronic equipment, because IP networking technology is becoming one of the common interfaces for all of industrial systems. Consequently, the following general requirements for the new enclosure syste
39、m arise. Standard-based but various sized networking/IT equipment from the open market should be installed in one cabinet (see figure 1). The mass volume of copper/optical cables from the equipment should be managed in the cabinet. Networking/IT cabinets will be increasingly sited at general offices
40、 in enterprise buildings rather than at traditional technical rooms in telecom-central offices. In order to meet these market needs, the implementation of additional specified dimensions for extended features based on IEC 60917-2-2 became necessary. b) Subject for development of extended connector a
41、pplication packaging based on IEC 60917 series The existing IEC 60917 series, which is structured on the modular concept of 25 mm, is based on the IEC standardized metric connector. However, the system packaging uses to many non-standardized enhanced connectors, which are necessary to realize the sy
42、stem functions and level of performance (see Figure 2). NOTE IEC Subcommittee 48D, Working Group 2, reviews the trends in system packaging, in which key elements are electrical/optical signal interfaces and connectors, as well as the general tendency of the new enclosure system. From these aspects,
43、the IEC Subcommittee 48D, Working Group 2 has recently developed IEC 60917-2-3 which will be applicable to system packaging for high-speed and other system applications in the near future. EN 60917-2-3:2006 6 IEC 681/06 Figure 1 Typical example of large subracks in a wide cabinet, equipped mass volu
44、me of copper/optical cables installation High density andhigh speed connector High speed fibreoptic connector High density multi-chip module (3D structured ICmounted functional SMD/BGA unit) Metal wired/fibre-optic linked backplane or middleplane Rear plug-in module Front plug-in module Functional m
45、odule unit with high density multi-chip module BGA Internal interface inter SMDs/BGAs on the module IEC 682/06 Key SMD: Surface Mount Device. BGA: Ball Grid Array. Figure 2 Subject for development of extended connector application packaging and key elements of interconnection between functional plug
46、-in modules via backplane in the future packaging system 7 EN 60917-2-3:2006 MODULAR ORDER FOR THE DEVELOPMENT OF MECHANICAL STRUCTURES FOR ELECTRONIC EQUIPMENT PRACTICES Part 2-3: Sectional specification Interface co-ordination dimensions for the 25 mm equipment practice Extended detail specificati
47、on Dimensions for subracks, chassis, backplanes, front panels and plug-in units 1 Scope and object This part of IEC 60917 provides additional dimensions for a modular range of subracks and associated plug-in units based on IEC 60917-2-2. A typical subrack consists of a frame design with mounting dim
48、ensions for installation into racks or cabinets in accordance with IEC 60917-2-1. The aperture dimensions of a subrack are specified in order to meet the mounting dimensions of front plug-in units. This part of IEC 60917 comprises additional dimensions for subracks and subrack associated plug-in uni
49、ts with injector/ extractor handle; dimensions for basic electromagnetic shielding provisions; dimensions of the key/coding system for subrack and plug-in units; dimensions of the alignment pin for front panel and plug-in unit; dimensions of electrostatic discharge provisions; dimensions of rear-mounted plug-in units. Connector-related dimensions are given in Annex A. In order to ensure the compatibi
