Mechanical structures for electronic equipment - Dimensions of mechanical structures of the 482,6 mm (19 in) series - Part 3-103: Keying and alignment pin
电子设备的机械结构 - 482,6 Mm(19 In)系列的机械结构尺寸 - 第3-103部分:键盘和对准针
Covers 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. May also be used in conjunction with IEC 60297-3-102.