IEC 60297-3-109:2015
电气和电子设备用机械结构. 482.6 mm (19 in) 系列机械结构尺寸. 第3-109部分: 嵌入式计算设备的底盘尺寸
Mechanical structures for electrical and electronic equipment - Dimensions of mechanical structures of the 482,6 mm (19 in) series - Part 3-109: Dimensions of chassis for embedded computing devices