What is BS EN 60917-2-3 - Specifications for mechanical structures about? 
Sub-racks are used for the reception of printed circuit boards and plug-in units in industries like telecom, test and measurement, transportation, aerospace etc. Electronic systems based on chassis design have become one of the most important platforms used for servers, industrial electronics, information technology (IT) and telecommunication equipment. The IEC 60917 series of standards are based on metric modular ordered dimensions, and also define structures and interface dimensions for metric cabinets, racks, subracks and chassis. The IEC 60917 series, developed later compared to IEC 60297, provides for more logical subrack and chassis design practices based on metric dimensioning.
BS EN 60917-2-3 provides additional dimensions for a modular range of subracks and associated plug-in units based on IEC 60917-2-2. BS EN 60917-2-3 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 the front panel and plug-in unit, dimensions of electrostatic discharge provisions and dimensions of rear-mounted plug-in units a;ong with connector-related dimensions.
Who is BS EN 60917-2-3 - Specifications for mechanical structures for? 
BS EN BS EN 60917-2-3 on specifications for mechanical structures is useful for: 
- Manufacturers of electronic devices
- Manufacturers of computers
- Manufacturers of circuit boards
- Manufacturers of automotive parts
- Aerospace industries
- Medical transportation
- Product development teams
- Maintenance and augmentation teams  
- Fault management teams
- Quality control personnel
- Regulatory authorities
Why should you use BS EN 60917-2-3 - Specifications for mechanical structures?
A chassis is a loadbearing framework of an artificial object, useful in the construction and function of embedded computing devices. New technologies requiring smaller plug-in unit form factors used in 19 in equipment practice are rapidly gaining acceptance. There are certain standardized specifications contributing to the performance of subracks, chassis, backplanes, front panels and plug-in units.
BS EN 60917-2-3 discusses terms and definitions that depict a user-friendly idea of mechanical structures. BS EN 60917-2-3 also provides users with inspection dimensions and connector-dependent dimensions to ensure the compatibility of plug-in units into the subrack. The guidelines in BS EN 60917-2-3 help you perceive specifications for mechanical structures that enable you to provide a superior quality product to your customers.
