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ANSI/VITA 62-2016 VITA

info@vita.com

Approved ANSI Standard

ANSI/VITA 62-2016

Modular Power Supply Standard

Abstract

This standard provides requirements for building a power supply module that can be used to

power a VPX chassis. The module will fit within the standard envelope defined for VPX modules

in the VITA 48.0 standards.

Approved: August 24, 2016

American National Standards Institute, Inc.

Secretariat: VITA

ANSI/VITA 62-2016 VITA

info@vita.com

Notices

AMERICAN NATIONAL STANDARD

Approval of an American National Standard requires verification by ANSI that the requirements

for due process, consensus, and other criteria for approval have been met by the standards

developer.

Consensus is established when, in the judgment of the ANSI Board of Standards Review,

substantial agreement has been reached by directly and materially affected interests.

Substantial agreement means much more than a simple majority, but not necessarily unanimity.

Consensus requires that all views and objections be considered, and that a concerted effort be

made toward their resolution.

The use of American National Standards is completely voluntary; their existence does not in

any respect preclude anyone, whether he has approved the standards or not, from

manufacturing, marketing, purchasing, or using products, processes, or procedures not

conforming to the standards.

The American National Standards Institute does not develop standards and will in no

circumstances give an interpretation of any American National Standard. Moreover, no person

shall have the right or authority to issue an interpretation of an American National Standard in

the name of the American National Standard Institute. Requests for interpretations should be

addressed to the secretariat or sponsor whose name appears on the title page of this standard.

CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time.

The procedures of the American National Standards Institute require that action be taken

periodically to reaffirm, revise, or withdraw this standard. Purchases of American National

Standards may receive current information on all standard by calling or writing the American

National Standards Institute.

NOTE: The user’s attention is called to the possibility that compliance with this standard may

require use of an invention covered by patent rights.

By publication of this standard, no position is taken with respect to the validity of this claim or of

any patent rights in connection therewith. The patent holder has, however, filed a statement of

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standards developer.

Published by: VITA

Except for employees of VITA member companies, no part of this publication may be

reproduced in any form, in an electronic retrieval system or otherwise, without prior written

permission of the publisher.

Printed in the United States of America - R1, ISBN 1-885731-91-4.

 
ANSI/VITA 62-2016  Page i of v 
Copyright © VITA 2016. All Rights Reserved. 
Table of Contents 
 Introduction .........................................................................................................................................................2 
1  Compatibility with Other VITA Standards ........................................................................................................2 
1.1  Relationship to [VITA 46.0] and [VITA 65] ...............................................................................................2 
1.2  Relationship to [VITA 48.0] and [VITA 47] ...............................................................................................2 
2  VITA 62 Power Subsystem and Module Types .................................................................................................3 
3  Scope of This Standard .....................................................................................................................................5 
4  Terminology .....................................................................................................................................................5 
4.1  Specification Key Words ..........................................................................................................................5 
4.2  Definitions ...............................................................................................................................................6 
4.3  Other Terminology ..................................................................................................................................8 
5  References ........................................................................................................................................................8 
5.1  VITA Standards ........................................................................................................................................8 
5.2  Other Standards ......................................................................................................................................9 
6  Order of Precedence ......................................................................................................................................10 
 VITA 62 Compliance ...........................................................................................................................................11 
 System ................................................................................................................................................................12 
1  Power .............................................................................................................................................................12 
2  Environmental ................................................................................................................................................12 
2.1  Power and Electromagnetic Compatibility (EMC) .................................................................................12 
2.2  Environment ..........................................................................................................................................13 
3  Management ..................................................................................................................................................13 
 Common Requirements .....................................................................................................................................14 
1  Overview ........................................................................................................................................................14 
1.1  Alternate cooling technologies and module pitches..............................................................................14 
2  Module and Backplane Connectors ...............................................................................................................15 
3  Alignment and Keying ....................................................................................................................................16 
3.1  3U Slot Keying........................................................................................................................................17 
3.2  6U Slot Keying........................................................................................................................................19 
4  Two Level Maintenance (Optional) ................................................................................................................21 
5  Energy Storage Modules (Optional) ...............................................................................................................21 
6  Signal Definition .............................................................................................................................................22 
6.1  Final Power Outputs ..............................................................................................................................22 
6.2  Intermediate Power ...............................................................................................................................27 
6.3  Signals ...................................................................................................................................................28 
7  Grounding ......................................................................................................................................................34 
 3U PSU Module ..................................................................................................................................................35 
1  Overview ........................................................................................................................................................35 
2  Connector .......................................................................................................................................................35 
3  Alignment and Keying ....................................................................................................................................35 
4  Connector Pin Definition ................................................................................................................................36 
5  Signal Definition .............................................................................................................................................37 
5.1  Input Power ...........................................................................................................................................37 
 6U PSU Module ..................................................................................................................................................38 
1  Overview ........................................................................................................................................................38 
2  Connector .......................................................................................................................................................38 

 
ANSI/VITA 62-2016  Page ii of v 
Copyright © VITA 2016. All Rights Reserved. 
6.3  Alignment and Keying ....................................................................................................................................38 
6.4  Connector Pin Definition ................................................................................................................................39 
6.5  Signal Definition .............................................................................................................................................41 
6.5.1  Input Power ...........................................................................................................................................41 
6.5.2  Filtered Out ............................................................................................................................................42 
7.  Backplane ...........................................................................................................................................................43 
7.1  3U Backplane ..................................................................................................................................................43 
7.2  6U Backplane ..................................................................................................................................................43 
8.  Validation ...........................................................................................................................................................44 
Appendix A  – Plug-In Module Assembly Drawings .............................................................................................45 
Appendix B  – Backplane Printed Circuit Board Fabrication ...............................................................................58 
Appendix C  – Plug-In Module Printed Circuit Board Fabrication Drawings .......................................................63 
Appendix D  – Connector Interface Drawings .....................................................................................................67 
Appendix E  – T Rise Test Boards and Methods for VITA 62 Power Supply Connector (3U)...............................82 
Appendix F  – VITA 62 connector suppliers ........................................................................................................87 
Appendix G  – Acknowledgements ......................................................................................................................88 
G.1  Working Group Members ..............................................................................................................................88 
G.2  ANSI Ballot Group ...........................................................................................................................................89 
 

 
ANSI/VITA 62-2016  Page iii of v 
Copyright © VITA 2016. All Rights Reserved. 
List of Figures 
Figure 1.2-1 Single-Stage Power Subsystem ..................................................................................................................4 
Figure 1.2-2 Two-Stage Power Subsystem ....................................................................................................................4 
Figure 4.3-1 Connector Alignment Keys ......................................................................................................................16 
Figure A-1 3U Convection Cooled Module Layout .......................................................................................................46 
Figure A-2 3U Conduction Cooled Module Layout ......................................................................................................47 
Figure A-3 3U Conduction Cooled Module Layout Secondary Side Retainers .............................................................48 
Figure A-4 6U Convection Cooled Module Layout .......................................................................................................49 
Figure A-5 6U Conduction Cooled Module Layout ......................................................................................................50 
Figure A-6 6U Conduction Cooled Module Layout Secondary Side Retainers .............................................................51 
Figure A-7 3U Conduction Cooled Module End View ..................................................................................................52 
Figure A-8 6U Conduction Cooled Module End View ..................................................................................................53 
Figure A-9 3U Chassis Side Wall View ..........................................................................................................................54 
Figure A-10 6U Chassis Side Wall View ........................................................................................................................55 
Figure A-11 3U Chassis Side Wall View, Secondary Side Wedgelocks .........................................................................56 
Figure A-12 6U Chassis Side Wall View, Secondary Side Wedgelocks .........................................................................57 
Figure B-1 3U Air Cooled Backplane, Plan View ..........................................................................................................59 
Figure B-2 6U Air Cooled Backplane, Plan View ..........................................................................................................60 
Figure B-3 3U Conduction Cooled Backplane, Plan View ............................................................................................61 
Figure B-4 6U Conduction Cooled Backplane, Plan View ............................................................................................62 
Figure C-1 3U PCB Fabrication Drawing (viewed from primary side) ..........................................................................63 
Figure C-2 6U PCB Fabrication Drawing (viewed from primary side) ..........................................................................64 
Figure C-3 3U PCB Fabrication Drawing, Alternate Layout (viewed from primary side) .............................................65 
Figure C-4 6U PCB Fabrication Drawing, Alternate Layout (viewed from primary side) .............................................66 
Figure D-1 3U J0 Connector .........................................................................................................................................68 
Figure D-2 3U J0 PCB Footprint ...................................................................................................................................69 
Figure D-3 3U P0 Connector ........................................................................................................................................70 
Figure D-4  3U P0 PCB Footprint ..................................................................................................................................71 
Figure D-5  6U J0 Connector ........................................................................................................................................72 
Figure D-6  6U J0 PCB Footprint ...................................................................................................................................73 
Figure D-7  6U P0 Connector .......................................................................................................................................74 
Figure D-8  6U P0 PCB Footprint ..................................................................................................................................75 
Figure D-9  6U J1 Connector ........................................................................................................................................76 
Figure D-10  6U J1 PCB Footprint.................................................................................................................................77 