IEC 60297-3-103:2004 Mechanical structures for electronic equipment - Dimensions of mechanical structures of the 482,6 mm (19 in) series - Part 3-103: Keying and alignment pin has been changed from IEC 60297-5-104:2001 Mechanical structures for electronic equipment - Dimensions of mechanical structures of the 482,6 mm (19 in) series - Part 5-104: Subracks and associated plug-in units; Keying.
IEC 60297-3-103:2004 Mechanical structures for electronic equipment - Dimensions of mechanical structures of the 482,6 mm (19 in) series - Part 3-103: Keying and alignment pin has been changed from IEC 60297-5-105:2001 Mechanical structures for electronic equipment - Dimensions of mechanical structures of the 482,6 mm (19 in) series - Part 5-105: Subracks and associated plug-in units; Alignment and/or earth pin.
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