MECHANICAL STRUCTURES FOR ELECTRONIC EQUIPMENT - DIMENSIONS OF MECHANICAL STRUCTURES OF THE 482,6 MM (19 IN) SERIES - PART 3-103: KEYING AND ALIGNMENT PIN
International Electrotechnical Committee
FOREWORD
INTRODUCTION
1 Scope and object
2 Normative references
3 Terms and definitions
4 Arrangement overview: Keying of plug-in units in a subrack
4.1 General
4.2 Subrack interface dimensions for keying
4.3 Plug-in unit keying interface dimensions
4.4 Key dimensions
4.5 Programming of keys
4.6 Keying chamber inspection dimensions
5 Arrangement overview: alignment and/or electrical contact
of a plug-in unit to a subrack
5.1 General
5.2 Alignment and/or electrical contact receptacle in the
subrack guide rail for printed board type plug-in units
(width dimension >= 4 x 5,08 mm)
5.3 Alignment and/or electrical contact interface
inspection dimensions
6 Arrangement overview: Subrack guide rail and printed board,
2,54 mm offset of the printed board reference plane
6.1 General
6.2 Dimensions of the subrack guide rail with 2,54 mm offset
of the printed board reference plane
6.3 Reference plane for printed boards with 2,54 mm offset
position
7 Dimensions used in the figures
Describes only the additional interface dimensions for an alignment pin and a keying device used with subracks and plug-in units according to IEC 60297-3-101.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 48 |
