1、BSI Standards PublicationMechanical structures for electronic equipment Dimensions of mechanical structures of the 482,6 mm (19 in) seriesPart 3-108: Dimensions of R-type subracks and plug-in unitsBS EN 60297-3-108:2015National forewordThis British Standard is the UK implementation of EN 60297-3-108
2、:2015. Itis identical to IEC 60297-3-108:2014.The UK participation in its preparation was entrusted to TechnicalCommittee EPL/48, Electromechanical components and mechanical structures for electronic equipment.A list of organizations represented on this committee can be obtained onrequest to its sec
3、retary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 72854 9ICS 31.240Compliance with a British Standard cannot co
4、nfer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 January 2015.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 60297-3-108:2015EUROPEAN STANDARD NORME EUROPENNE EUROPIS
5、CHE NORM EN 60297-3-108 January 2015 ICS 31.240 English Version Mechanical structures for electronic equipment - Dimensions of mechanical structures of the 482,6 mm (19 in) series - Part 3-108: Dimensions of R-type subracks and plug-in units (IEC 60297-3-108:2014) Structures mcaniques pour quipement
6、s lectroniques - Dimensions des structures mcaniques de la srie 482,6 mm (19 pouces) - Partie 3-108: dimensions des bacs de type r et des blocs enfichables (IEC 60297-3-108:2014) Bauweisen fr elektronische Einrichtungen - Mae der 482,6-mm-(19-in-)Bauweise - Teil 3-108: Mae von Baugruppentrgern und s
7、teckbaren Baugruppen Typ R (IEC 60297-3-108:2014) This European Standard was approved by CENELEC on 2014-10-14. 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
8、 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 versions (English, French, German). A version in any other lan
9、guage 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 committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, th
10、e 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the Unit
11、ed Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CENELEC All rights of exploitation in any form and by any means r
12、eserved worldwide for CENELEC Members. Ref. No. EN 60297-3-108:2015 E BS EN 60297-3-108:2015EN 60297-3-108:2015 - 2 - Foreword The text of document 48D/565/FDIS, future edition 1 of IEC 60297-3-108, prepared by SC 48D, “Mechanical structures for electronic equipment“, of IEC TC 48, “Electromechanica
13、l components and mechanical structures for electronic equipment“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60297-3-108:2015. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical nati
14、onal standard or by endorsement (dop) 2014-07-16 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2017-10-14 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN sh
15、all not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 60297-3-108:2014 was approved by CENELEC as a European Standard without any modification. BS EN 60297-3-108:2015- 3 - EN 60297-3-108:2015 Annex ZA (normative) Norm
16、ative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated referen
17、ces, the latest edition of the referenced document (including any amendments) applies. NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-to-date information on the latest versions of the European Standards li
18、sted in this annex is available here: www.cenelec.eu. Publication Year Title EN/HD Year IEC 60297-3-100 - Mechanical structures for electronic equipment - Dimensions of mechanical structures of the 482,6 mm (19 in) series - Part 3-100: Basic dimensions of front panels, subracks, chassis, racks and c
19、abinets EN 60297-3-100 - IEC 60297-3-101 - Mechanical structures for electronic equipment - Dimensions of mechanical structures of the 482,6 mm (19 in) series - Part 3-101: Subracks and associated plug-in units EN 60297-3-101 - IEC 60297-3-105 - Mechanical structures for electronic equipment - Dimen
20、sions of mechanical structures of the 482,6 mm (19 in) series - Part 3-105: Dimensions and design aspects for 1U high chassis EN 60297-3-105 - IEC 61587-1 - Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 series - Part 1: Environmental requirements, test set-up and
21、 safety aspects for cabinets, racks, subracks and chassis under indoor conditions EN 61587-1 - IEC 61587-3 - Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 - Part 3: Electromagnetic shielding performance tests for cabinets, racks and subracks EN 61587-3 - IEC 6158
22、7-5 - Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 - Part 5: Seismic tests for chassis, subracks, and plug-in units EN 61587-5 - IEC/TS 62610-2 - Mechanical structures for electronic equipment - Thermal management for cabinets in accordance with IEC 60297 and IE
23、C 60917 series - Part 2: Design guide: Method for the determination of forced air-cooling structure - - BS EN 60297-3-108:2015 2 IEC 60297-3-108:2014 IEC 2014 CONTENTS INTRODUCTION . 6 1 Scope 7 2 Normative references 7 3 Terms and definitions 8 4 Arrangement overview . 8 5 RA type subrack . 9 5.1 G
24、eneral . 9 5.2 RAtype subrack rear mounting dimensions 11 6 RBtype subrack . 12 6.1 General . 12 6.2 RBtype subrack rear mounting dimensions 13 7 Rtype subrack guide rails 13 8 Electromagnetic shielding provisions and mounting flanges . 14 9 Chassis integrated subrack 15 9.1 General . 15 9.2 RA Ctyp
25、e chassis/subrack . 16 9.3 RBCtype chassis/subrack 16 10 Front panel/plug-in unit compatible with RA type subrack . 17 11 Front panel/plug-in unit compatible with RB type subrack . 19 12 Injector/extractor handle 20 13 Printed board dimensions 20 14 Dimensions 21 15 Nomenclature 22 15.1 Reference pl
26、ane (given in square boxes of figures) . 22 15.2 Dimensions of Table 1 22 Annex A (normative) Mounting support 23 A.1 Chassis/subrack mounting support in cabinets 23 Annex B (normative) Environmental tests. 24 B.1 Static and dynamic load test . 24 B.2 Seismic test 24 B.3 Electromagnetic shielding pe
27、rformance test 24 Annex C (normative) Thermal management . 25 C.1 Air ducting 25 Annex D (informative) Comparison of IEC 60297-3-101 with IEC 60297-3-108 . 26 Figure 1 Subrack application 6 Figure 2 Arrangement of a R-type subrack and plug-in units 9 Figure 3 RAtype subrack front mounting dimensions
28、 10 Figure 4 RAtype subrack rear mounting dimensions . 11 Figure 5 RBtype subrack front mounting dimensions 12 Figure 6 RBtype subrack rear mounting dimensions . 13 Figure 7 Rtype subrack guide rails . 14 BS EN 60297-3-108:2015IEC 60297-3-108:2014 IEC 2014 3 Figure 8 Rtype subrack front attachment p
29、lane and mounting flanges 15 Figure 9 RA C type chassis/subrack 16 Figure 10 RBC type chassis/subrack . 17 Figure 11 Front panel/ plug-in unit compatible with RA type subrack . 18 Figure 12 Front panel/ plug-in unit compatible with RB type subrack . 19 Figure 13 Injector/extractor handle . 20 Figure
30、 14 Printed board dimensions . 21 Figure A.1 Subrack/chassis mounting support 23 Figure C.1 Thermal management example . 25 Table 1 Dimensions . 21 Table D.1 Comparison of dimensions and features 26 BS EN 60297-3-108:2015 6 IEC 60297-3-108:2014 IEC 2014 INTRODUCTION The purpose of this standard is t
31、o establish alternative dimensions and features for subracks and associated plug-in units, compared with IEC 60297-3-101. These alternatives allow more sturdy designs for the load bearing members of the subrack. In addition, the plug-in units are with alignment pins and fastened with M3 screws. Chas
32、sis integrated subracks are also part of this standard. The main differing dimensions/features compared with IEC 60297-3-101 are: a) The subrack height aperture is decreased in order to increase the dimension for the top and bottom members (most critical load bearing parts). b) Incorporated alignmen
33、t between the subrack and the plug-in units. Injecting and extracting provisions for plug-in units. c) The mounting flanges of the subracks are recessable. This feature meets the mounting requirements of heavy subracks and allows the positioning to the centre of gravity. d) Chassis integrated subrac
34、ks for optimized thermal management features. e) Comparison of dimensions and features with IEC 60297-3-101 is shown in appendix D, Table D.1. For an application image of the subrack based on this standard see Figure 1. IEC 60297-3-101 Conventional form factor and normal weight, for small to medium
35、volume applications, e.g. general industrial computing and data processing IEC 60297-3-107 Small form factor and light weight, for large volume applications, e.g. embedded systems, mobile/ubiquitous computing systems IEC 60297-3-108 Heavy weight and large form factor, for large volume applications,
36、e.g. cloud-computing servers, telecom servers Embedded system Full scaled 19 in system Heavy duty 19 in system Subrack and plug-in unit system weight factor Subrackand plug-in unitmechanicalcomplexity factorHighLowIEC Figure 1 Subrack application BS EN 60297-3-108:2015IEC 60297-3-108:2014 IEC 2014 7
37、 MECHANICAL STRUCTURES FOR ELECTRONIC EQUIPMENT DIMENSIONS OF MECHANICAL STRUCTURES OF THE 482,6 mm (19 in) SERIES Part 3-108: Dimensions of R-type subracks and plug-in units 1 Scope This part of IEC 60297 provides dimensions and features for R-type subracks and plug-in units, i.e. ruggedized varian
38、ts of the mechanical structures of the 482,6 mm (19 in) series, with enhanced vibration and shock resistance and/or improved EMC performance, for use in more harsh environment. This leads to a subrack standard which is externally compatible with IEC 60297-3-100 but internally largely incompatible wi
39、th IEC 60297-3-101. R-type subracks, chassis integrated subracks and plug-in units incorporate dimensions and features which provide for a higher level of ruggedness, compared with IEC 60297-3-101 (test set-up and load definitions are selected from IEC 61587-1 and IEC 61587-5). 2 Normative reference
40、s The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 6
41、0297-3-100, Mechanical structures for electronic equipment Dimensions of mechanical structures of the 482,6 mm (19 in) series Part 3-100: Basic dimensions of front panels, subracks, chassis, racks and cabinets IEC 60297-3-101, Mechanical structures for electronic equipment Dimensions of mechanical s
42、tructures of the 482,6 mm (19 in) series Part 3-101: Subracks and associated plug-in units IEC 60297-3-105, Mechanical structures for electronic equipment Dimensions of mechanical structures of the 482,6 mm (19 in) series Part 3-105: Dimensions and design aspects for 1U high chassis IEC 61587-1, Mec
43、hanical structures for electronic equipment Tests for IEC 60917 and IEC 60297 series Part 1: Environmental requirements, test set-up and safety aspects for cabinets, racks, subracks and chassis under indoor conditions IEC 61587-3, Mechanical structures for electronic equipment Tests for IEC 60917 an
44、d IEC60297 Part 3: Electromagnetic shielding performance tests for cabinets and subracks IEC 61587-5, Mechanical structures for electronic equipment Tests for IEC 60917 and IEC 60297 Part 5: Seismic tests for chassis, subracks, and plug-in units IEC TS 62610-2, Mechanical structures for electronic e
45、quipment Thermal management for cabinets in accordance with IEC 60297 and IEC 60917 series Part 2: Design guide: Method for determination of forced air-cooling structure BS EN 60297-3-108:2015 8 IEC 60297-3-108:2014 IEC 2014 3 Terms and definitions For the purposes of this document the following ter
46、ms and definitions apply. 3.1 Rtype subrack and plugin unit ruggedized subrack and plug-in unit, with enhanced shock and vibration resistance, with or without EMC provisions compared with subrack/plug-in units according to IEC 60297-3-101 3.2 chassis integrated subrack subrack integrated within the
47、envelope of a chassis 4 Arrangement overview Figure 2 illustrates the typical arrangement of a R-type subrack with the associated plug-in units. BS EN 60297-3-108:2015IEC 60297-3-108:2014 IEC 2014 9 Optional, additional receptacle for Injector/extractor handle Mandatory receptacle for injector/extra
48、ctor handle Mounting flange with mounting dimensions according to IEC 60297-3-101 Front panel Plug-in unit with injector/extractor handle IEC Figure 2 Arrangement of a R-type subrack and plug-in units 5 RA type subrack 5.1 General Figure 3 illustrates the RA-type subrack, defined by the dimension of
49、 the first printed board position in relation to the first pitch line (see detail A). The deflection of the load bearing members of max. 0,2 mm is permitted. BS EN 60297-3-108:2015 10 IEC 60297-3-108:2014 IEC 2014 Front view E Dimensions in millimetres, tolerances are non-cumulative 5,08 G G (4,27) 1) R 1,5 I H G J 6,35 0,1 2, 54 First printed board position 4,0 0,1 x 3,2 0,1 receptacle h
