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1、Recognized as an American National Standard (ANSI) The Institute of Electrical and Electronics Engineers, Inc. 345 East 47th Street, New York, NY 10017-2394, USA Copyright 1992 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 1992. Printed in the United S
2、tates of America. ISBN 1-55937-232-X No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. IEEE Std 1101.2-1992 (R2008) IEEE Standard for Mechanical Core Specifications for Conduction-Cooled E
3、urocards Sponsor Microprocessor and Microcomputer Standards Subcommittee of the IEEE Computer Society Reaffirmed 31 January 2008 Approved 6 December 2001 IEEE-SA Standards Board Reaffirmed 2 May 2002 Approved 20 January 1993 American National Standards Institute Abstract: Mechanical characteristics
4、of conduction-cooled versions of Eurocard-based circuit card assemblies are described. This specification is applicable to, but not limited to, the VMEbus standard, aninternal interconnect (backplane) bus intended for connecting processing elements to their immediatefundamental resources. The aim is
5、 to ensure mechanical interchangeability of conduction-cooled circuitcard assemblies in a format suitable for military and rugged applications and to ensure their compatibilitywith commercial, double-height, 16 mm, Eurocard chassis. Keywords: dimensions, card slot requirements, circuit card assembli
6、es, conduction-cooled, mechanical interchangeability, Eurocard-based Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 03:40:26 MDTNo reproduction or networking pe
7、rmitted without license from IHS -,-,- ii IEEE Standards documents are developed within the Technical Committees of the IEEE Societies and the Standards Coordinating Committees of the IEEE Standards Board. Members of the committees serve voluntarily and without compensation. They are not necessarily
8、 members of the Institute. The standards developed within IEEE represent a consensus of the broad expertise on the subject within the Institute as well as those activities outside of IEEE which have expressed an interest in participating in the development of the standard. Use of an IEEE Standard is
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11、 reaffirmed, it is reasonable to conclude that its contents, although still of some value, do not wholly reflect the present state of the art. Users are cautioned to check to determine that they have the latest edition of any IEEE Standard. Comments for revision of IEEE Standards are welcome from an
12、y interested party, regardless of membership affiliation with IEEE. Suggestions for changes in documents should be in the form of a proposed change of text, together with appropriate supporting comments. Interpretations: Occasionally questions may arise regarding the meaning of portions of standards
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14、on has also received the concurrence of a balance of interests. For this reason IEEE and the members of its technical committees are not able to provide an instant response to interpretation requests except in those cases where the matter has previously received formal consideration. Comments on sta
15、ndards and requests for interpretations should be addressed to: Secretary, IEEE Standards Board 445 Hoes Lane, P.O. Box 1331 Piscataway, NJ 08855-1331 USA IEEE Standards documents are adopted by the Institute of Electrical and Electronics Engineers without regard to whether their adoption may involv
16、e patents on articles, materials, or processes. Such adoption does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the standards documents. Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license
17、 with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 03:40:26 MDTNo reproduction or networking permitted without license from IHS -,-,- iii Foreword (This foreword is not a part of IEEE Std 1101.2-1992, IEEE Standard for Mechanical Core Specifications for Conductio
18、n-Cooled Eurocards.) This document describes mechanical characteristics for conduction-cooled versions of Eurocard-based circuit card assemblies. It is intended that this specification will be applicable to, but not limited to, the VMEbus standard, an internal interconnect (backplane) bus intended f
19、or connecting processing elements to their immediate fundamental resources. This standard is intended to be a companion standard to other standards, which include IEEE Std 1101.1-1991, Mechanical Core Specifications for Microcomputers Using IEC 603-2 Connectors; IEEE Std 1014-1987, IEEE Standard for
20、 a Versatile Backplane Bus: VMEbus; and MIL-C-55302/131 and MIL-C-55302/132, connector specifications for module and backplane. Other uses for the standard are in no way prohibited. At the time this document was approved, the members of the working group were as follows: Kim Clohessy, Chair J. Abdin
21、oor Naresh Agerwal Wayne Anderson Michael Blomquist Clint Brown Barry Burnsides Dave Caserza Michael Crawford Thomas Curnan Allan G. Foster Will Hamsher Ben La Pointe Michael Munro Doug Patterson Mike Schmidt Gene Schramm Michael Thompson John Van Rhee Tres Wiley Duncan C. Young The following person
22、s were on the balloting committee that approved this document for submission to the IEEE Standards Board: Ray S. Alderman R. E. Allen John C. Brightwell Kim Clohessy Wilhelm P. Evertz Gordon Force David B. Gustavson Frank Horn Edgar Jacques Ernst H. Kristiansen Rollins Linser Michael Munroe Elwood P
23、arsons Donald Pavlovich Richard C. Pederson Shlomo Pri-Tal Michael G. Thompson Joseph Toy Eike Waltz Andrew Wilson Joel Witt Janusz Zalewski Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS
24、 Not for Resale, 07/30/2008 03:40:26 MDTNo reproduction or networking permitted without license from IHS -,-,- iv When the IEEE Standards Board approved this standard on June 18, 1992, it had the following membership: Marco W. Migliaro, Chair Donald C. Loughry, Vice Chair Andrew G. Salem, Secretary
25、Dennis Bodson Paul L. Borrill Clyde Camp Donald C. Fleckenstein Jay Forster* David F. Franklin Ramiro Garcia Thomas L. Hannan Donald N. Heirman Ben C. Johnson Walter J. Karplus Ivor N. Knight Joseph Koepfinger* Irving Kolodny D.N. “Jim” Logothetis Lawrence V. McCall T. Don Michael* John L. Rankine W
26、allace S. Read Ronald H. Reimer Gary S. Robinson Martin V. Schneider Terrance R. Whittemore Donald W. Zipse *Member Emeritus Also included are the following nonvoting IEEE Standards Board liaisons: Satish K. Aggarwal James Beall Richard B. EngelmanDavid E. Soffrin Stanley Warshaw Paula M. Kelty IEEE
27、 Standards Project Editor Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 03:40:26 MDTNo reproduction or networking permitted without license from IHS -,-,- v CL
28、AUSEPAGE 1. Scope.1 1.1 Mechanical Characteristics 1 1.2 Environmental Requirements. 1 2. Purpose1 3. References.2 4. Special Word Usage, Definitions, and Acronyms 2 4.1 Special Word Usage. 2 4.2 Definitions 2 4.3 Acronyms. 3 5. Characteristics.3 5.1 Introduction 3 5.2 CCA Arrangement . 3 5.3 Card P
29、itch. 4 5.4 Card Dimensions 4 5.5 Pinout. 10 5.6 Optional Features. 10 6. Chassis Interface.10 6.1 Card Connectors. 10 6.2 Card Guide Slots 11 7. Materials, Processes, and Parts.11 7.1 Fungus Resistance 11 7.2 Hazardous Components . 11 7.3 Conduction Plate Material . 11 8. Bibliography11 Copyright T
30、he Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 03:40:26 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright 1992 IEEE All Rights Reserved1
31、IEEE Standard for Mechanical Core Specifications for Conduction-Cooled Eurocards 1. Scope This standard defines the mechanical requirements for Eurocard-based conduction-cooled circuit card assemblies (CCAs). 1.1 Mechanical Characteristics The standard defines dimensions and card slot requirements f
32、or conduction-cooled, CCAs of the double-height, nominal 160 mm, Eurocard format. 1.2 Environmental Requirements The prime use of CCAs developed according to this specification is for environments with extreme temperature, shock, and vibration. However, there are other applications for which this sp
33、ecification is suitable. P1156.1 31 deals with environmental conditions and should be used to specify environmental requirements. 2. Purpose The purpose of this standard is to ensure mechanical interchangeability of conduction-cooled CCAs in a format suitable for military and rugged applications. Th
34、e CCAs shall also be compatible with commercial, double-height, 160 mm Eurocard chassis. 1 The numbers in brackets correspond to those of the references in Section 3; when preceded by a “B,” they correspond to those in the Bibliography in Section 8. Copyright The Institute of Electrical and Electron
35、ics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 03:40:26 MDTNo reproduction or networking permitted without license from IHS -,-,- 2Copyright 1992 IEEE All Rights Reserved IEEE Std 1101.2-1992IEEE STANDARD FOR M
36、ECHANICAL CORE SPECIFICATIONS 3. References The following documents form a part of this standard to the extent referenced herein. The revisions of these documents to be used are those current at the commencement of a design activity. In the event of conflict between the documents referenced herein a
37、nd the contents of this standard, the contents of this standard will be considered a superseding requirement. 1 IEEE Std 1014-1987, IEEE Standard for a Versatile Backplane Bus: VMEbus (ANSI). 2 IEEE Std 1101.1-1991, IEEE Standard for Mechanical Core Specifications for Microcomputers Using IEC 603-2
38、Connectors (ANSI). 3 P1156.1, Environmental Specifications for Computer Modules (Draft No. 3.2, Nov. 19, 1991).2 4 MIL-C-55302/131, Connectors, Plug, Electrical, Printed Circuit Subassembly and Accessories: Right Angle, Pin Contact, 64 or 96 Contact Positions for Printed Wiring Board (.100 inch spac
39、ing).3 5 MIL-C-55302/132, Connectors, Plug, Electrical, Printed Circuit Subassembly and Accessories: Receptacle, Socket Contacts, Straight Through, 64 or 96 Contact Positions for Printed Wiring Board (.100 inch spacing). 6 MIL-P-55110, Printed Wiring Boards. 7 MIL-STD-454, Standard General Requireme
40、nts for Electronic Equipment. 4. Special Word Usage, Definitions, and Acronyms 4.1 Special Word Usage may. A key word that indicates flexibility of choice with no implied preference. shall. A key word indicating a mandatory requirement. Designers shall implement all such mandatory requirements to en
41、sure interoperability with other products that meet this specification. should. A key word indicating flexibility of choice with a strongly preferred implementation. The phrase it is recommended is used interchangeably with the key word should. 4.2 Definitions height: By convention, the height axis
42、is parallel to the connectors. (Refer to Fig 1.) depth: By convention, the depth axis is perpendicular to the connectors in the plane of the PWB. (Refer to Fig 1.) width: By convention, the width axis is perpendicular to the PWB. (Refer to Fig 2.) bottom edge: By convention, that edge of the module
43、that is seen counterclockwise from the faceplate when viewing the component side. 2 Numbers with a “P” prefix are IEEE-authorized standards projects. For information about obtaining drafts, contact the IEEE Computer Society, 1730 Massachusetts Ave., NW, Washington, DC 20036-1903, USA. 3 MIL publicat
44、ions are available from the Director, U.S. Navy Publications and Printing Service, Eastern Division, 700 Robbins Avenue, Philadelphia, PA 19111, USA. Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=J
45、apan, IHS Not for Resale, 07/30/2008 03:40:26 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright 1992 IEEE All Rights Reserved3 FOR CONDUCTION-COOLED EUROCARDSIEEE Std 1101.2-1992 back edge: By convention, the edge of the module closest to the backplane. component si
46、de: By convention, the side of the module seen furthest from row A of the connector. On single-sided modules, this is the side populated with circuit components. This is the right side when looking at an IEEE 1101.1 2 system through the front door. faceplate: By convention, the edge of the module th
47、at is furthest from the backplane, also known as the front panel or front plane. solder side: By convention, the side of the module opposite to the component side. This is the left side when looking at an IEEE 1101.1 2 system through the front door. top: By convention, the edge of the module seen cl
48、ockwise from the faceplate when viewing the component side. In IEEE 1101.1 2 systems, the P1 connector is closer to the top than the bottom edge. web: That portion of the cold wall that extends between modules to permit heat transfer. 4.3 Acronyms ANSIAmerican National Standards Institute CCAcircuit card assembly, also referred to as a module DIPdual in-line package HPhorizontal pitch ICintegrated circuit PGApin grid array, a type of integrated circuit package PWBprinted wiring board VMEVersa Module European, modules as defined by IEEE Std 1