IEC 60917-2-3:2006

Modular order for the development of mechanical structures for electronic equipment practices - Part 2-3: Sectional specification - Interface co-ordination dimensions for the 25 mm equipment practice - Extended detail specification - Dimensions for subracks, chassis, backplanes, front panels and plug-in units

IEC 60917-2-3:2006 Provides additional dimensions for a modular range of subracks and associated plug-in units based on IEC 60917-2-2. A typical subrack consists of a frame design with mounting dimensions for installation into racks or cabinets in accordance with IEC 60917-2-1. The aperture dimensions of a subrack are specified in order to meet the mounting dimensions of front plug-in units. This part of IEC 60917 comprises additional dimensions for subracks and subrack associated plug-in units with injector/extractor handle, dimensions for basic electromagnetic shielding provisions, dimensions of the key/coding system for subrack and plug-in units, dimensions of the alignment pin for front panel and plug-in unit, dimensions of electrostatic discharge provisions and dimensions of rear-mounted plug-in units. This bilingual version (2013-06) corresponds to the monolingual English version, published in 2006-05. Key words: subrack, plug in units, chassis

Ordre modulaire pour le développement des structures mécaniques pour les infrastructures électroniques - Partie 2-3: Spécification intermédiaire - Dimensions de coordination pour les interfaces des infrastructures au pas de 25 mm - Spécification particulière étendue - Dimensions pour bacs, châssis, fonds de paniers, faces avant et unités enfichables

La CEI 60917-2-3:2006 Fournit d'autres dimensions pour une gamme modulaire de bacs et d'unités enfichables associées basées sur la CEI 60917-2-2. Un bac typique est constitué d'un cadre avec des dimensions de montage pour l'installation dans des bâtis ou des baies selon la CEI 60917-2-1. Les dimensions des ouvertures d'un bac sont spécifiées pour satisfaire aux dimensions de montage des unités enfichables avant. La présente partie de la CEI 60917 comprend d'autres dimensions pour des bacs et des unités enfichables associées aux bacs avec une poignée d'introduction/extraction, des dimensions de dispositifs de blindage électromagnétiques de base, des dimensions de système de codage/verrouillage pour les bacs et les unités enfichables, des dimensions de tige d'alignement pour les panneaux avant et les unités enfichables, des dimensions de dispositifs de décharge électrostatique et des dimensions d'unités enfichables montées sur l'arrière. La présente version bilingue (2013-06) correspond à la version anglaise monolingue publiée en 2006-05. Mots-clés : bac, unités enfichables, châssis

General Information

• Status: Published
• Publication Date: 08-May-2006
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 31.240 - Mechanical structures for electronic equipment
• Technical Committee: SC 48D - Mechanical structures for electrical and electronic equipment
• Drafting Committee: WG 2 - TC 48/SC 48D/WG 2
• Current Stage: PPUB - Publication issued
• Start Date: 15-Nov-2006
• Completion Date: 09-May-2006

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD 60917-2-3
First edition
2006-05
Modular order for the development
of mechanical structures
for electronic equipment practices –

Part 2-3:
Sectional specification –
Interface co-ordination dimensions
for the 25 mm equipment practice –
Extended detail specification –
Dimensions for subracks, chassis, backplanes,
front panels and plug-in units

Reference number
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INTERNATIONAL IEC
STANDARD 60917-2-3
First edition
2006-05
Modular order for the development
of mechanical structures
for electronic equipment practices –

Part 2-3:
Sectional specification –
Interface co-ordination dimensions
for the 25 mm equipment practice –
Extended detail specification –
Dimensions for subracks, chassis, backplanes,
front panels and plug-in units

 IEC 2006  Copyright - all rights reserved
No 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 Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale V
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – 60917-2-3  IEC:2006(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6

1 Scope and object.8
2 Normative references .8
3 Terms and definitions .9
4 Arrangement overview.9
5 Subrack dimensions for injector/extractor handle of plug-in units.10
5.1 Subrack interface dimensions.10
6 Dimensions of injector/extractor handle for plug-in units .12
6.1 Injector/extractor handle interface dimensions.12
6.2 Handle-locking function .14
7 Subrack and plug-in units with electromagnetic shielding provision .14
7.1 Subrack interface dimensions for electromagnetic shielding provision .14
7.2 Front panel/plug-in unit interface dimensions .17
8 Key/coding system for subrack and plug-in units .18
8.1 Subrack interface dimensions – Key/coding system on the plug-in unit guides .19
8.2 Key dimensions – Key/coding system on the plug-in unit guides.20
8.3 Programming of key – Key/coding system on the plug-in guides.22
8.4 Keying chamber inspection dimensions .22
9 Alignment pin and/or electrical contact for front panels and plug-in units .23
9.1 Alignment pins and receptacle plates on the subrack horizontal members .24
9.2 Alignment and/or electrical contact pins and receptacles on the subrack
plug-in unit guides.25
10 Electrostatic discharge provision for plug-in units and subracks.27
10.1 ESD contact interface dimensions .28
10.2 ESD strip interface dimensions.28
11 Subrack dimensions for rear-mounted plug-in units .32

Annex A Subrack, plug-in unit and backplane dimensions for using metric connectors.33

Figure 1 – Typical example of large subracks in a wide cabinet, equipped mass
volume of copper/optical cables installation .7
Figure 2 – Subject for development of extended connector application packaging and
key elements of interconnection between functional plug-in modules via backplane in
the future packaging system .7
Figure 3 – Arrangement overview .9
Figure 4 – Subrack interface dimensions, injector/extractor handles for plug-in units .11
Figure 5 – Detail X and detail Y, subrack interface dimensions, injection/extraction
handles for plug-in units.12
Figure 6 – Plug-in units interface dimensions, injection/extraction handle for plug-in units .13
Figure 7 – Detail X and detail Y, plug-in interface dimensions, injector/extractor
handles for plug-in units.14
Figure 8 – Subrack interface dimensions, electromagnetic shielding provisions .15

60917-2-3  IEC:2006(E) – 3 –
Figure 9 – Detail X and detail Y, subrack interface dimensions, electromagnetic
shielding provisions .16
Figure 10 – Front panel/plug-in unit interface dimensions, electromagnetic shielding
provisions .17
Figure 11 – Arrangement of key/coding system for plug-in units.18
Figure 12 – Subrack interface dimensions – Key/coding system on the plug-in unit
guides.19
Figure 13 – Plug-in unit interface dimensions – Key/coding system on the plug-in unit
guides.20
Figure 14 – Key dimensions and rotated key positions – Key/coding system on the
plug-in unit guides .21
Figure 15 – Programming of keys .22
Figure 16 – Arrangement of alignment pin system for subracks and plug-in units.23
Figure 17 – Subrack interface dimensions, alignment pins and receptacle plates on
the horizontal members .24
Figure 18 – Plug-in unit interface dimensions, alignment pins and receptacle plates on
the horizontal members .25
Figure 19 – Subrack interface dimensions, alignment and/or electrical contact pin
receptacles on the plug-in unit guides.26
Figure 20 – Plug-in unit interface dimensions, alignment and/or electrical contact pin
receptacles on the plug-in unit guides.27
Figure 21 – Subrack interface dimensions, ESD contacts on the plug-in guides .28
Figure 22 – Plug-in unit interface dimensions, ESD strips on the plug-in boards .29
Figure 23 – Subrack dimensions for rear mounted plug-in units .32
Figure A.1 – Subrack, plug-in unit and backplane dimensions for using 2,5 mm metric
connectors in accordance with IEC 61076-4-100.33
Figure A.2 – Subrack, plug-in unit and backplane dimensions for using 2 mm metric
connectors in accordance with IEC 61076-4-101.34
Figure A.3 – Subrack, plug-in unit and backplane dimensions for using 2 mm metric
connectors in accordance with IEC 61076-4-104.35

Table 1 – Inspection dimensions of subrack and plug-in unit keying chambers.22
Table 2 – Dimensions of subracks and plug-in units based on IEC 60917-2-2 .30
Table 3 – Dimensions of subracks and boards for rear-mounted plug-in units .32

– 4 – 60917-2-3  IEC:2006(E)
INTERNATIONAL ELECTROTECHNICAL COMMISION
___________
MODULAR ORDER FOR THE DEVELOPMENT
OF MECHANICAL STRUCTURES
FOR ELECTRONIC EQUIPMENT PRACTICES –

Part 2-3: Sectional specification – Interface co-ordination dimensions
for the 25 mm equipment practice – Extended detail specification –
Dimensions for subracks, chassis, backplanes, front panels
and plug-in units
FOREWORD
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...

IEC 60917-2-3 ®
Edition 1.0 2006-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Modular order for the development of mechanical structures for electronic
equipment practices –
Part 2-3: Sectional specification – Interface co-ordination dimensions for
the 25 mm equipment practice – Extended detail specification – Dimensions
for subracks, chassis, backplanes, front panels and plug-in units

Ordre modulaire pour le développement des structures mécaniques pour les
infrastructures électroniques –
Partie 2-3: Spécification intermédiaire – Dimensions de coordination pour
les interfaces des infrastructures au pas de 25 mm – Spécification particulière
étendue – Dimensions pour bacs, châssis, fonds de paniers, faces avant et
unités enfichables
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IEC 60917-2-3 ®
Edition 1.0 2006-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Modular order for the development of mechanical structures for electronic

equipment practices –
Part 2-3: Sectional specification – Interface co-ordination dimensions for

the 25 mm equipment practice – Extended detail specification – Dimensions

for subracks, chassis, backplanes, front panels and plug-in units

Ordre modulaire pour le développement des structures mécaniques pour les

infrastructures électroniques –

Partie 2-3: Spécification intermédiaire – Dimensions de coordination pour

les interfaces des infrastructures au pas de 25 mm – Spécification particulière

étendue – Dimensions pour bacs, châssis, fonds de paniers, faces avant et

unités enfichables
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX V
ICS 31.240 ISBN 978-2-83220-885-4

– 2 – 60917-2-3  IEC:2006
CONTENTS
FOREWORD . 4
INTRODUCTION . 6

1 Scope and object . 8
2 Normative references . 8
3 Terms and definitions . 9
4 Arrangement overview . 9
5 Subrack dimensions for injector/extractor handle of plug-in units . 10
5.1 Subrack interface dimensions . 10
6 Dimensions of injector/extractor handle for plug-in units . 12
6.1 Injector/extractor handle interface dimensions . 12
6.2 Handle-locking function . 14
7 Subrack and plug-in units with electromagnetic shielding provision . 14
7.1 Subrack interface dimensions for electromagnetic shielding provision . 14
7.2 Front panel/plug-in unit interface dimensions . 17
8 Key/coding system for subrack and plug-in units . 18
8.1 General . 18
8.2 Subrack interface dimensions – Key/coding system on the plug-in unit guides . 19
8.3 Key dimensions – Key/coding system on the plug-in unit guides . 20
8.4 Programming of key – Key/coding system on the plug-in guides . 22
8.5 Keying chamber inspection dimensions . 22
9 Alignment pin and/or electrical contact for front panels and plug-in units . 23
9.1 General . 23
9.2 Alignment pins and receptacle plates on the subrack horizontal members . 24
9.3 Alignment and/or electrical contact pins and receptacles on the subrack
plug-in unit guides . 25
10 Electrostatic discharge provision for plug-in units and subracks. 27
10.1 General . 27
10.2 ESD contact interface dimensions . 28
10.3 ESD strip interface dimensions . 28
10.4 Dimensions of subracks and plug-in units based on IEC 60917-2-2 . 30
11 Subrack dimensions for rear-mounted plug-in units . 32
Annex A (informative) Subrack, plug-in unit and backplane dimensions for using
metric connectors . 33

Figure 1 – Typical example of large subracks in a wide cabinet, equipped mass

volume of copper/optical cables installation . 7
Figure 2 – Subject for development of extended connector application packaging and
key elements of interconnection between functional plug-in modules via backplane in
the future packaging system . 7
Figure 3 – Arrangement overview . 9
Figure 4 – Subrack interface dimensions, injector/extractor handles for plug-in units . 11
Figure 5 – Detail X and detail Y, subrack interface dimensions, injection/extraction
handles for plug-in units . 12
Figure 6 – Plug-in units interface dimensions, injection/extraction handle for plug-in units . 13

60917-2-3  IEC:2006 – 3 –
Figure 7 – Detail X and detail Y, plug-in interface dimensions, injector/extractor
handles for plug-in units . 14
Figure 8 – Subrack interface dimensions, electromagnetic shielding provisions . 15
Figure 9 – Detail X and detail Y, subrack interface dimensions, electromagnetic
shielding provisions . 16
Figure 10 – Front panel/plug-in unit interface dimensions, electromagnetic shielding
provisions . 17
Figure 11 – Arrangement of key/coding system for plug-in units . 18
Figure 12 – Subrack interface dimensions – Key/coding system on the plug-in unit
guides . 19
Figure 13 – Plug-in unit interface dimensions – Key/coding system on the plug-in unit
guides . 20
Figure 14 – Key dimensions and rotated key positions – Key/coding system on the
plug-in unit guides . 21
Figure 15 – Programming of keys . 22
Figure 16 – Arrangement of alignment pin system for subracks and plug-in units . 23
Figure 17 – Subrack interface dimensions, alignment pins and receptacle plates on
the horizontal members . 24
Figure 18 – Plug-in unit interface dimensions, alignment pins and receptacle plates on
the horizontal members . 25
Figure 19 – Subrack interface dimensions, alignment and/or electrical contact pin
receptacles on the plug-in unit guides . 26
Figure 20 – Plug-in unit interface dimensions, alignment and/or electrical contact pin
receptacles on the plug-in unit guides . 27
Figure 21 – Subrack interface dimensions, ESD contacts on the plug-in guides . 28
Figure 22 – Plug-in unit interface dimensions, ESD strips on the plug-in boards . 29
Figure 23 – Subrack dimensions for rear mounted plug-in units . 32
Figure A.1 – Subrack, plug-in unit and backplane dimensions for using 2,5 mm metric
connectors in accordance with IEC 61076-4-100 . 33
Figure A.2 – Subrack, plug-in unit and backplane dimensions for using 2 mm metric
connectors in accordance with IEC 61076-4-101 . 34
Figure A.3 – Subr
...