1、BRITISH STANDARDBS EN 60297-3-103:2004Mechanical structures for electronic equipment Dimensions of mechanical structures of the 482,6 mm (19 in) series Part 3-103: Keying and alignment pinThe European Standard EN 60297-3-103:2004 has the status of a British StandardICS 31.240g49g50g3g38g50g51g60g44g
2、49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 60297-3-103:2004This British Standard was published under the authority of the Standards Policy and Strategy Committee
3、 on 30 June 2006 BSI 2006ISBN 0 580 45256 5National forewordThis British Standard 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 It supersedes BS EN 60297-5-104:2001 and BS EN 60297-5-105:2001 which are withdrawn.The UK participation in it
4、s preparation was entrusted to Technical Committee EPL/48/4, Mechanical structures 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-referencesThe British Standards which implement interna
5、tional 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 the BSI Electronic Catalogue or of British Standards Online.This publication does not purport
6、 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 enquirers to understand the text; present to the responsible international/European committee an
7、y 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 comprises a front cover, an inside front cover, the EN title page, pages 2 to 16, an inside
8、back cover 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 60297-3-103NORME EUROPENNE EUROPISCHE NORM September 2004 CENELECEuropean Committee for Electrotec
9、hnical 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 worldwide for CENELEC members. Ref. No. E
10、N 60297-3-103:2004 E ICS 31.240 Supersedes EN 60297-5-104:2001 & EN 60297-5-105:2001English 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 60297-3-103:2004)Structures mcaniques pour
11、 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 und Fhrungsstift (IEC 60297-3-103:2004) Thi
12、s 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. Up-to-date lists and bibliographical ref
13、erences 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 translation under the responsibility of a CENELEC
14、 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, Germany, Greece, Hungary, Iceland, Ireland,
15、 Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. 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,
16、 of IEC TC 48, Electromechanical components and mechanical structures for electronic equipment, was submitted to the IEC-CENELEC parallel vote and was approved 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 dat
17、es 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) 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
18、CENELEC. _ Endorsement notice The text of the International Standard IEC 60297-3-103:2004 was approved by CENELEC as a European Standard without any modification. _ Page 2 EN 60297-3-103:2004 CONTENTSINTRODUCTION.41 Scope and object52 Normative references .53 Terms and definitions .54 Arrangement ov
19、erview: Keying of plug-in units in a subrack.64.1 General .64.2 Subrack interface dimensions for keying 74.3 Plug-in unit keying interface dimensions.74.4 Key dimensions .84.5 Programming of keys .84.6 Keying chamber inspection dimensions 95 Arrangement overview: alignment and/or electrical contact
20、of a plug-in unit to a subrack 105.1 General .105.2 Alignment and/or electrical contact receptacle in the subrack guide rail for printed board type plug-in units (width dimension t 4 x 5,08 mm)115.3 Alignment and/or electrical contact interface inspection dimensions126 Arrangement overview: Subrack
21、guide rail and printed board, 2,54 mm offset of the printed board reference plane .136.1 General .136.2 Dimensions of the subrack guide rail with 2,54 mm offset of the printed board reference plane .146.3 Reference plane for printed boards with 2,54 mm offset position.147 Dimensions used in the figu
22、res .15Figure 1 Relationship between the new IEC 60297-3 series and the old IEC 60297 series .4Figure 2 Keying of a plug-in unit in a subrack .6Figure 3 Subrack interface dimensions for keying .7Figure 4 Plug-in unit keying interface dimensions .7Figure 5 Key dimensions8Figure 6 Programming of keys8
23、Figure 7 Front and/or rear subrack and plug-in unit keying chamber inspection dimensions .9Figure 8 Alignment and/or electrical contact of a plug-in unit to a subrack .10Figure 9 Alignment and/or electrical contact receptacle position in the subrack .11Figure 10 Alignment and/or electrical contact i
24、nterface inspection dimensions.12Figure 11 Subrack guide rail and printed board, 2,54 mm offset of the printed board reference plane 13Figure 12 Dimensions of the subrack guide rail with 2,54 mm offset of the printed board reference plane.14Figure 13 Reference plane for printed boards with 2,54 mm o
25、ffset position14Annex ZA (normative) Normative references to international publications with their corresponding European publications 16Page 3 EN 60297-3-103:2004 INTRODUCTIONThe “Dimensions of mechanical structures of the 482,6 mm (19 in) standards are defined in IEC 60297. To the original IEC 602
26、97-3:1988 publication was added Amendment 1:1995. The additional requirements were published in IEC 60297-4:1995 with Amendment 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 a
27、nd technically enhance these standard “parts” into 3 “new” standards for subracks and associated plug-in units. This “merged” 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
28、. The nomenclature of these new standards has been revised. The relationship to IEC 60297-1 (Part 1: Panels and Racks) has been 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, mechan
29、ical tests and safety aspects for cabinets, racks, subracks and chassis) and IEC TS 61587-3 (Part 3: Electromagnetic shielding 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
30、additional to those defined in IEC 60297-3-101. Figure 1 Relationship between the new IEC 60297-3 series and the old IEC 60297 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 IE
31、C 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 IEC 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 Pag
32、e 4 EN 60297-3-103:2004 MECHANICAL STRUCTURES FOR ELECTRONIC EQUIPMENT DIMENSIONS OF MECHANICAL STRUCTURESOF 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 de
33、vice used with subracks 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 a
34、pplies. For undated 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 unitsIEC 60297-3-102, Dimensions of mechanical structures
35、of the 482,6 mm (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 appl
36、y.Page 5 EN 60297-3-103:2004 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 shall be snap-in mounted for the purpose of change and/or retrofit in accordance to the applicat
37、ion 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 mounted printed board type plug-in unit Plug-in unit mounted key Subrack mountedkey Typical
38、front/rear mounted guide rail IEC 1112/04 Page 6 EN 60297-3-103:2004 4.2 Subrack interface dimensions 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
39、 on the rear of the subrack is of mirror image. For missing dimensions and those in brackets, see IEC 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 un
40、it keying interface dimensions Plug-in unit front panel H314,75 r 0,15 (H6)Printed board Keying chamber dimensions see Clause 5 Front view Side view, cross section A-A AAt 4,9 3,1 13 r 0,3 H31Subrack mounted key t3,35,082,5 r 0,05 (2,54)First pitch line 3 2 (H6)5,0800,2 IEC 1113/04 IEC 1114/04 Page
41、7 EN 60297-3-103:2004 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 on 3U subracks, the
42、 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 the plug-in unit are i
43、ndicated 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 keying identification n
44、umbers, 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 at subrack top area K
45、eying 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 F FA B C C B AD E E DcLKeying pinpositions N = No keyKeying pin posit
46、ions 4,67,6 r 0,1 2,4CenterlineFront view Side view Key retention feature (spring load or similar) 2,10 0,05 0 0,1 4,40 0,1 2,40 0,05 0,1+0,10 IEC 1115/04 IEC 1116/04 Page 8 EN 60297-3-103:2004 4.6 Keying chamber inspection dimensions Table 1 Subrack and plug-in unit keying chamber inspection dimens
47、ions All dimensions are in millimetres (U) 3 6 9 H31 r 0,3 106 239,35 372,7 All dimensions are in millimetres For dimensions in brackets and missing dimensions, see IEC 60297-3-101. NOTE The guide rail on the rear of the subrack is of mirror image. Figure 7 Front and/or rear subrack and plug-in unit
48、 keying chamber inspection dimensions Subrack front view Printed board type plug-in unit side view Typical subrack horizontal member H31y 0,3 A0,2Pitch line (H6)H31y 0,3 B (U)Guide rail with keying chambers A B IEC 1117/04 Page 9 EN 60297-3-103:2004 5 Arrangement overview: alignment and/or electrica
49、l contact of a plug-in unit to a subrack 5.1 General The features of this alignment and/or electrical contact will be used: for the alignment of front panels in a controlled distance within a subrack (e.g. for the use of shielding gaskets, see IEC 60297-3-101) or as an advanced contact to the receptacle in the subrack. See Figures 8 to 10. Figure 8 Alignment and/or electrical contact of a plug-in unit
