IEC 60297-3-107:2012

IEC 60297-3-107 ®
Edition 1.0 2012-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Mechanical structures for electronic equipment – Dimensions of mechanical
structures of the 482,6 mm (19 in) series –
Part 3-107: Dimensions of subracks and plug-in units, small form factor

Structures mécaniques pour équipements électroniques – Dimensions des
structures mécaniques de la série 482,6 mm (19 pouces) –
Partie 3-107: Dimensions des bacs et blocs enfichables de petit facteur de forme

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IEC 60297-3-107 ®
Edition 1.0 2012-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Mechanical structures for electronic equipment – Dimensions of mechanical

structures of the 482,6 mm (19 in) series –

Part 3-107: Dimensions of subracks and plug-in units, small form factor

Structures mécaniques pour équipements électroniques – Dimensions des

structures mécaniques de la série 482,6 mm (19 pouces) –

Partie 3-107: Dimensions des bacs et blocs enfichables de petit facteur de forme

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX V
ICS 31.240 ISBN 978-2-88912-844-0

– 2 – 60297-3-107  IEC:2012
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope and object . 7
2 Normative references . 7
3 Arrangement overview (4U shown) . 8
4 Subrack dimensions . 9
4.1 Subrack dimensions front mounting area . 9
4.2 Subrack dimensions, rear view, backplane mounting area . 12
5 Plug-in unit dimensions . 13
6 Connector and related printed board dimensions . 14
6.1 Connector according to PICMG-MicroTCA.0/ IEC 61076-4-116, fixed board
connector and related printed board dimensions . 14
6.1.1 PICMG- MicroTCA.0/ IEC 61076-4-116 connector, isometric view . 14
6.1.2 Connector according to PICMG- MicroTCA.0/ IEC 61076-4-116, fixed
board connector and related printed board – arrangement overview . 14
6.1.3 Printed board dimensions . 15
6.1.4 Printed board dimensions, 4U example . 16
6.1.5 Connector according to PICMG-MTCA.0, fixed board connector
dimensions . 17
6.2 Two part connector according to IEC 61076-4-116 and related printed board
dimensions . 17
6.2.1 Two part connector, isometric view . 17
6.2.2 Two part connector, arrangement overview . 18
6.2.3 Two part connector, printed board dimensions . 18
6.2.4 Two part connector, fixed board connector dimensions . 19
6.3 Two part connector with PIU PB component side attachment features . 19
6.3.1 Two part connector, arrangement overview . 19
6.3.2 Two part connector, printed circuit board dimensions, 2 U . 19
6.3.3 Two part connector, connector mounted on backplane, 2 U . 20
7 Backplane dimensions . 21
7.1 Backplane dimensions using two part connector according to IEC 61076-4-116 . 21
8 Subrack and plug-in units with electromagnetic shielding (EMC) provisions . 23
8.1 General . 23
8.2 Subrack EMC provisions . 23
8.3 Plug-in unit and filler panels EMC provisions . 24
9 Subrack and plug in units electrostatic discharge provisions (ESD) . 24
9.1 General . 24
9.2 Subrack ESD provisions . 25
9.3 Plug–in unit ESD provisions, front mounted . 26
10 Nomenclature . 27
Annex A (informative) Connector hole pattern at the backplane . 29
Annex B (informative) Rear mounted plug-in unit implementation . 30
Annex C (informative) Hot swap latch function . 32
Annex D (informative) Subrack latch mechanism interface dimensions for ruggedized
applications . 33
Annex E (informative) Subrack ESD contact interface dimensions . 34

60297-3-107  IEC:2012 – 3 –
Figure 1 – Arrangement overview . 8
Figure 2 – Subrack dimensions, front view . 10
Figure 3 – Subrack dimensions, side view . 11
Figure 4 – Subrack dimensions, top view . 12
Figure 5 – Subrack dimensions, rear view . 12
Figure 6 – Plug-in unit dimensions . 13
Figure 7 – PICMG- MicroTCA.0/ IEC 61076-4-116 connector, isometric view . 14
Figure 8 – PICMG- MicroTCA.0/ IEC 61076-4-116 fixed board connector, arrangement
overview – Top view . 14
Figure 9 – Printed board dimensions . 15
Figure 10 – Printed board dimensions, 4U example . 16
Figure 11 – Connector according to PICMG- MTCA.0, fixed board connector
dimensions . 17
Figure 12 – Fixed board and free board connector – Isometric view . 17
Figure 13 – Two part connector, arrangement overview – Top view . 18
Figure 14 – Two part connector, printed board dimensions . 18
Figure 15 – Two part connector, arrangement overview – Top view . 19
Figure 16 – Two part connector, dimensions, 2 U . 19
Figure 17 – Two part connector, connector mounted on backplane dimensions, 2 U . 20
Figure 18 – Backplane dimensions. 22
Figure 19 – Subrack EMC dimensions . 23
Figure 20 – Plug-in unit EMC dimensions. 24
Figure 21 – Subrack ESD provision . 25
Figure 22 – Plug-in unit ESD provision . 26
Figure A.1 – Connector pin location according to IEC 61076-4-116, front view . 29
Figure B.1 – Depth dimension subrack type 1, side view . 30
Figure B.2 – Depth dimension subrack type 2, side view . 30
Figure B.3 – Depth dimension subrack type 3, side view . 31

Table 1 – Height dimensions . 26
Table 2 – Depth dimensions . 27

– 4 – 60297-3-107  IEC:2012
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MECHANICAL STRUCTURES FOR ELECTRONIC EQUIPMENT –
DIMENSIONS OF MECHANICAL STRUCTURES
OF THE 482,6 mm (19 in) SERIES –

Part 3-107: Dime
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