NBN EN 60297-3-103 : 2006

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
Annex ZA (normative) Normative references to international
                     publications with their corresponding
                     European publications