1、INTERNATIONALSTANDARDIEC60297-3-103First edition2004-08Mechanical structures for electronic equipment Dimensions of mechanical structuresof the 482,6 mm(19 in)series Part 3-103:Keying and alignment pin Reference number IEC 60297-3-103:2004(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL US
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8、ail:custserviec.ch Tel:+41 22 919 02 11 Fax:+41 22 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTERNATIONALSTANDARDIEC60297-3-103First edition2004-08Mechanical structures for electronic equipment Dimensions of mechanical
9、 structuresof the 482,6 mm(19 in)series Part 3-103:Keying and alignment pin?IEC 2004?Copyright-all rights reservedNo part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing from the
10、 publisher.International Electrotechnical Commission,3,rue de Varemb,PO Box 131,CH-1211 Geneva 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.chPFor price,see current cataloguePRICE CODE Commission Electrotechnique InternationaleInternational Electr
11、otechnical Commission?LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 60297-3-103?IEC:2004(E)CONTENTSFOREWORD.3INTRODUCTION.51Scope and object.62Normative references.63Terms and definitions.64Arrangement overview:Keying of plug-in un
12、its in a subrack.74.1General.74.2Subrack interface dimensions for keying.84.3Plug-in unit keying interface dimensions.84.4Key dimensions.94.5Programming of keys.94.6Keying chamber inspection dimensions.105Arrangement overview:alignment and/or electrical contact of a plug-in unit to a subrack.115.1Ge
13、neral.115.2Alignment and/or electrical contact receptacle in the subrack guide rail for printed board type plug-in units(width dimension?4 x 5,08 mm).125.3Alignment and/or electrical contact interface inspection dimensions.136Arrangement overview:Subrack guide rail and printed board,2,54 mm offset o
14、f the printed board reference plane.146.1General.146.2Dimensions of the subrack guide rail with 2,54 mm offset of the printed board reference plane.156.3Reference plane for printed boards with 2,54 mm offset position.157Dimensions used in the figures.16Figure 1 Relationship between the new IEC 60297
15、-3 series and the old IEC 60297 series.5Figure 2 Keying of a plug-in unit in a subrack.7Figure 3 Subrack interface dimensions for keying.8Figure 4 Plug-in unit keying interface dimensions.8Figure 5 Key dimensions.9Figure 6 Programming of keys.9Figure 7 Front and/or rear subrack and plug-in unit keyi
16、ng chamber inspection dimensions.10Figure 8 Alignment and/or electrical contact of a plug-in unit to a subrack.11Figure 9 Alignment and/or electrical contact receptacle position in the subrack.12Figure 10 Alignment and/or electrical contact interface inspection dimensions.13Figure 11 Subrack guide rail and printed board,2,54 mm offset of the printed board reference plane.14Figure 12 Dimensions of the subrack guide rail with 2,54 mm offset of the printed board reference plane.15Figure 13 Referenc
