IEC 60917-2-3:2006根据IEC 60917-2-2为子架和相关插件的模块化范围提供了额外的尺寸。根据IEC 60917-2-1，典型的子架由框架设计组成，其安装尺寸可安装在机架或机柜中。指定子架的孔径尺寸，以满足前插件的安装尺寸。IEC 60917的这一部分包括子架和子架相关插头的附加尺寸- 在带有注射器/拔出器手柄的装置中，基本电磁屏蔽装置的尺寸，子架和插件的钥匙/编码系统的尺寸，前面板和插件的定位销的尺寸，静电放电装置的尺寸和后安装插件的尺寸。该双语版本（2013-06）对应于2006-05年出版的单语英语版本。 关键词:子架、插件、机箱

IEC 60917-2-3:2006 Provides additional dimensions for a modular range of subracks and associated plug-in units based on IEC 60917-2-2. A typical subrack consists of a frame design with mounting dimensions for installation into racks or cabinets in accordance with IEC 60917-2-1. The aperture dimensions of a subrack are specified in order to meet the mounting dimensions of front plug-in units. This part of IEC 60917 comprises additional dimensions for subracks and subrack associated plug-in units with injector/extractor handle, dimensions for basic electromagnetic shielding provisions, dimensions of the key/coding system for subrack and plug-in units, dimensions of the alignment pin for front panel and plug-in unit, dimensions of electrostatic discharge provisions and dimensions of rear-mounted plug-in units. This bilingual version (2013-06) corresponds to the monolingual English version, published in 2006-05. Key words: subrack, plug in units, chassis