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1、BRITISH STANDARD BS EN 60297-3-103: 2004 Mechanical structures for electronic equipment Dimensions of mechanical structures of the 482,6 mm (19 in) series Part 3-103: Keying and alignment pin The European Standard EN 60297-3-103:2004 has the status of a British Standard ICS 31.240 ? Licensed Copy: s
2、heffieldun sheffieldun, na, Sat Nov 11 08:55:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60297-3-103:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2006 BSI 2006 ISBN 0 580 45256 5 National foreword This British Standard
3、 is the official English language version of EN 60297-3-103:2004. It is identical with IEC 60297-3-103:2004. It supersedes BS EN 60297-5-104:2001 and BS EN 60297-5-105:2001 which are withdrawn. The UK participation in its preparation was entrusted to Technical Committee EPL/48/4, Mechanical structur
4、es for electronic equipment, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in
5、the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsibl
6、e for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK int
7、erests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 16, an inside back cover and a back cover. The BSI copyright notice displayed in this d
8、ocument indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 08:55:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 60297-3-103 NORME EUROPENNE EUROPISCHE NORM September 2004 CE
9、NELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2004 CENELEC - All rights of exploitation in any form and by any means reserved wo
10、rldwide for CENELEC members. Ref. No. EN 60297-3-103:2004 E ICS 31.240 Supersedes EN 60297-5-104:2001 & EN 60297-5-105:2001 English version Mechanical structures for electronic equipment - Dimensions of mechanical structures of the 482,6 mm (19 in) series Part 3-103: Keying and alignment pin (IEC 60
11、297-3-103:2004) Structures mcaniques pour quipement lectronique - Dimensions des structures mcaniques de la srie de 482,6 mm (19 in) Partie 3-103: Codage et broche dalignement (CEI 60297-3-103:2004) Bauweisen fr elektronische Einrichtungen - Mae der 482,6-mm-(19-in-)Bauweise Teil 3-103: Kodierung un
12、d Fhrungsstift (IEC 60297-3-103:2004) This European Standard was approved by CENELEC on 2004-09-01. 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.
13、 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 (English, French, German). A version in any other language made by translat
14、ion 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 Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Ge
15、rmany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 08:55:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
16、Foreword The text of document 48D/301/FDIS, future edition 1 of IEC 60297-3-103, prepared by SC 48D, Mechanical structures for electronic equipment, of IEC TC 48, Electromechanical components and mechanical structures for electronic equipment, was submitted to the IEC-CENELEC parallel vote and was a
17、pproved by CENELEC as EN 60297-3-103 on 2004-09-01. This European Standard supersedes EN 60297-5-104:2001 and EN 60297-5-105:2001. 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 (d
18、op) 2005-06-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2007-09-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60297-3-103:2004 was approved by CENELEC as a European Standard without any mod
19、ification. _ Page 2 EN 60297-3-103:2004 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 08:55:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CONTENTS INTRODUCTION.4 1Scope and object5 2Normative references .5 3Terms and definitions .5 4Arrangement overview: Keying of plug-in units in a subrack
20、.6 4.1General.6 4.2Subrack interface dimensions for keying 7 4.3Plug-in unit keying interface dimensions.7 4.4Key dimensions .8 4.5Programming of keys.8 4.6Keying chamber inspection dimensions9 5Arrangement overview: alignment and/or electrical contact of a plug-in unit to a subrack 10 5.1General.10
21、 5.2Alignment and/or electrical contact receptacle in the subrack guide rail for printed board type plug-in units (width dimension ? 4 x 5,08 mm)11 5.3Alignment and/or electrical contact interface inspection dimensions12 6Arrangement overview: Subrack guide rail and printed board, 2,54 mm offset of
22、the printed board reference plane .13 6.1General.13 6.2Dimensions of the subrack guide rail with 2,54 mm offset of the printed board reference plane .14 6.3Reference plane for printed boards with 2,54 mm offset position.14 7Dimensions used in the figures .15 Figure 1 Relationship between the new IEC
23、 60297-3 series and the old IEC 60297 series .4 Figure 2 Keying of a plug-in unit in a subrack .6 Figure 3 Subrack interface dimensions for keying .7 Figure 4 Plug-in unit keying interface dimensions .7 Figure 5 Key dimensions8 Figure 6 Programming of keys8 Figure 7 Front and/or rear subrack and plu
24、g-in unit keying chamber inspection dimensions .9 Figure 8 Alignment and/or electrical contact of a plug-in unit to a subrack .10 Figure 9 Alignment and/or electrical contact receptacle position in the subrack .11 Figure 10 Alignment and/or electrical contact interface inspection dimensions.12 Figur
25、e 11 Subrack guide rail and printed board, 2,54 mm offset of the printed board reference plane 13 board reference plane.15 Figure 13 Reference plane for printed boards with 2,54 mm offset position15 Figure 12 Dimensions of the subrack guide rail with 2,54 mm offset of the printed board reference pla
26、ne.14 Figure 13 Reference plane for printed boards with 2,54 mm offset position14 Annex ZA (normative) Normative references to international publications with their corresponding European publications 16 Page 3 EN 60297-3-103:2004 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 08:55:24 GMT+0
27、0:00 2006, Uncontrolled Copy, (c) BSI INTRODUCTION The “Dimensions of mechanical structures of the 482,6 mm (19 in) standards are defined in IEC 60297. To the original IEC 60297-3:1988 publication was added Amendment 1:1995. The additional requirements were published in IEC 60297-4:1995 with Amendme
28、nt 1:1999. The extended requirements were published in the IEC 60297-5-1XX series (2001). Responding to market requirements and for more clarity it became necessary to merge and technically enhance these standard “parts” into 3 “new” standards for subracks and associated plug-in units. This “merged”
29、 standard series now defined as IEC 60297-3-101, IEC 60297-3-102 and IEC 60297-3-103 explains its relationship to the previous “fragmented” IEC 60297-X standards, see Figure 1. The nomenclature of these new standards has been revised. The relationship to IEC 60297-1 (Part 1: Panels and Racks) has be
30、en maintained. The relationship to IEC 60297-2 (Part 2: Cabinets and pitches of rack structures) has been maintained. The relationship to IEC 61587-1 (Part 1: Climatic, mechanical tests and safety aspects for cabinets, racks, subracks and chassis) and IEC TS 61587-3 (Part 3: Electromagnetic shieldin
31、g performance tests for cabinets, racks and subracks) has been added. IEC 60297-3-103 defines only the interface dimensions for an alignment pin and a keying device which are additional to those defined in IEC 60297-3-101. Figure 1 Relationship between the new IEC 60297-3 series and the old IEC 6029
32、7 series Subracks and plug-in units IEC 60297-3-101 New “merged” standard series Subracks and associated plug-in units Subracks and plug-in units: Injector/extractor handle IEC 60297-3-102 Subracks and plug-in units: Keying and alignment pin IEC 60297-3-103 IEC 60297-3 IEC 60297-4 IEC 60297-5-102 IE
33、C 60297-5-103 IEC 60297-5-107 Old “fragmented“ standard series Subracks and associated plug-in units IEC 60297-5-101 IEC 60297-4 IEC 60297-5-104 IEC 60297-5-105 IEC 1089/04 Page 4 EN 60297-3-103:2004 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 08:55:24 GMT+00:00 2006, Uncontrolled Copy, (
34、c) BSI MECHANICAL STRUCTURES FOR ELECTRONIC EQUIPMENT DIMENSIONS OF MECHANICAL STRUCTURES OF THE 482,6 mm (19 in) SERIES Part 3-103: Keying and alignment pin 1 Scope and object This part of IEC 60297 covers only the additional interface dimensions for an alignment pin and a keying device used with s
35、ubracks and plug-in units according to IEC 60297-3-101. This standard may also be used in conjunction with IEC 60297-3-102. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For unda
36、ted references, the latest edition of the referenced document (including any amendments) applies. IEC 60297-3-101, Dimensions of mechanical structures of the 482,6 mm (19 in) series Part 3-101: Subracks and associated plug-in units IEC 60297-3-102, Dimensions of mechanical structures of the 482,6 mm
37、 (19 in) series Part 3-102: Injector/extractor handle IEC 60917-1:1998, Modular order for the development of mechanical structures for electronic equipment practices 3 Terms and definitions For the purposes of this part of IEC 60297, the terms and definitions given in IEC 60917-1 apply. Page 5 EN 60
38、297-3-103:2004 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 08:55:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 Arrangement overview: Keying of plug-in units in a subrack 4.1 General This method of keying will prevent misarrangement of board type plug-in units into subracks. The keys sha
39、ll be snap-in mounted for the purpose of change and/or retrofit in accordance to the application order. The keying feature needs the special retainer on the plug-in unit as well as on the subrack guiderail, as shown by Figures 2 to 7. Figure 2 Keying of a plug-in unit in a subrack Typical front/rear
40、 mounted printed board type plug-in unit Plug-in unit mounted key Subrack mounted key Typical front/rear mounted guide rail IEC 1112/04 Page 6 EN 60297-3-103:2004 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 08:55:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4.2 Subrack interface dimensio
41、ns for keying All dimensions are in millimetres NOTE The two chamber solution may be used for box type plug-in units. The three chamber solution is suitable for printed board type plug-in units. Keying on the rear of the subrack is of mirror image. For missing dimensions and those in brackets, see I
42、EC 60297-3-101. Figure 3 Subrack interface dimensions for keying 4.3 Plug-in unit keying interface dimensions All dimensions are in millimetres NOTE? For missing dimensions, see 4.2. Figure 4 Plug-in unit keying interface dimensions Plug-in unit front panel H31 4,75 ? 0,15 (H6) Printed board Keying
43、chamber dimensions see Clause 5 Front view Side view, cross section A-A A A ? 4,9 3,113 ? 0,3 H31 Subrack mounted key ? 3,3 5,08 2,5 ? 0,05 (2,54) First pitch line 3 2 (H6) 5,08 0 0,2 IEC 1113/04 IEC 1114/04 Page 7 EN 60297-3-103:2004 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 08:55:24 G
44、MT+00:00 2006, Uncontrolled Copy, (c) BSI 4.4 Key dimensions The key dimensions will allow the programming of four positions within a subrack mounting chamber. The key shall be designed for a selfretaining snap-in assembly. The subrack mounting chambers are identified by letters. For a safe function
45、 on 3U subracks, the keying is recommended on the lower side only, whereas for 6U and 9U keying in both positions, on the upper and lower side, is necessary. All dimensions are in millimetres Figure 5 Key dimensions 4.5 Programming of keys NOTE? The corresponding keying chambers on the subrack and t
46、he plug-in unit are indicated by the same letters. The numbering order of keying pins as shown was chosen with the purpose that the corresponding chambers with the same keying pin identification number will not block by inserting a plug-in unit. If corresponding chambers are fitted with different ke
47、ying identification numbers, the plug-in unit will be blocked and cannot be inserted. On the rear of the subrack/plug-in unit the letters A, B, C will be on the bottom and D, E, F on the top. The order of letters on the rear is of mirror image. Figure 6 Programming of keys 1 2 3 4 N Keying chambers
48、at subrack top area Keying chambers at subrack bottom area Keying chambers at plug-in unit top area Keying chambers at plug-in unit bottom area Subrack keying, front view 1 2 3 4 N Plug-in unit keying, view on front panel rear side 1 2 3 4 N 1 2 3 4 N FF ABCCBA DEED cL Keying pin positions N = No ke
49、y Keying pin positions ? 4,6 7,6 ? 0,1 2,4 Center line Front view Side view Key retention feature (spring load or similar) 2,1 0 0,05 0 0,1 4,4 0 0,1 2,4 0 0,05 0,1 +0,1 0 IEC 1115/04 IEC 1116/04 Page 8 EN 60297-3-103:2004 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 08:55:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4.6 Keying c