IEC_60297-3-103-2004.pdf

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 USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series.For example,IEC 34-1 is now referred to as IEC 60034-1.Consolidated editions The IEC is now publishing consolidated versions of its publications.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to the base publication,the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2.Further information on IEC publications The technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating to this publication,including its validity,is available in the IEC Catalogue of publications(see below)in addition to new editions,amendments and corrigenda.Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication,as well as the list of publications issued,is also available from the following:IEC Web Site(www.iec.ch)Catalogue of IEC publications The on-line catalogue on the IEC web site(www.iec.ch/searchpub)enables you to search by a variety of criteria including text searches,technical committees and date of publication.On-line information is also available on recently issued publications,withdrawn and replaced publications,as well as corrigenda.IEC Just Published This summary of recently issued publications(www.iec.ch/online_news/justpub)is also available by email.Please contact the Customer Service Centre(see below)for further information.Customer Service Centre If you have any questions regarding this publication or need further assistance,please contact the Customer Service Centre:Email: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 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 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 Electrotechnical 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 units 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.115.1General.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 of 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 60297-3 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 keying 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