DIN 41494 PDF

Buy DIN () Mechanical Structures For Electronic Equipment; Mechanical Structures Of The ,6 Mm (19 Inch) Series; Components On Front . DIN Mechanical structures for electronic equipment; mechanical structures of the ,6 mm (19″)series; components on front panels; mounting. Category:DIN Good pictures. Advanced All images; Featured pictures; Quality images; Valued images; In this category and in In this.

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The inch rack format has remained constant while the technology that is mounted within it has changed considerably and the set of fields to which racks are applied has greatly expanded. Holes so arranged can either be tapped usually UNF thread, or, less often, 6mm metric or have square holes for cage nuts.

19-inch rack

Originally, the mounting holes were tapped with a particular screw thread. Larger cases are further reinforced with additional plywood or sheet metal. APC SX-range racksit is common for sin that 14494 4-post mounting brackets to have an adjustable rear bracket. A standard inch server rack cabinet is typically 42u in height, 19 inches A difficulty with forced air fan cooling in rack equipment is that fans can fail due to age or dust.

Each module has a front panel that is 19 inches Touring musicians, theatrical productions and sound and light companies use road case racks.

Category:DIN 41494

When in place, the equipment may also then be bolted to the rack. Computer enclosure Mechanical standards Server hardware. A blade server enclosure might require diin. Rack-mountable equipment is traditionally mounted by bolting or clipping its front panel to the rack.

Equipment designed to be placed in a rack is typically described as rack-mountrack-mount instrumenta rack mounted systema rack mount chassissubrackrack mountableor occasionally simply shelf. Two-post racks are most often used for telecommunication installations.

These cases are marketed to musicians and entertainers for equipment not subject to frequent transportation and rough handling. This gap allows a bit of 4194 above and below an installed piece of equipment so it may be removed without binding on the adjacent equipment.


Nineteen-inch racks in two-post or four-post form hold most equipment in modern data centersISP facilities, and professionally designed corporate server rooms. Once serial production started, they were built into custom-made racks, one per repeater.

Non-isolated cases simply mount inch mounting rails inside the case. List of International Electrotechnical Commission standards. Examples include telephone exchanges, network cabling panels, broadcast studios and some government and military applications. Raised or false floor cooling in server rooms can serve a similar purpose; they permit cooling airflow to equipment through the underfloor space to the underside of enclosed rack cabinets.

The fin of motion and resulting stress depends on the structural characteristics of the building dn framework in which the equipment is contained, and the severity of the earthquake. Many wall-mounted industrial equipment enclosures have inch rack sin to support mounting of equipment.

For instance, most optical disc players will not work upside-down because the driving motor mechanism does not grip the disc. There are a multitude of specialty server racks including soundproof server racks, air conditioned server racks, NEMA rated, seismic rated, open frame, narrow, and even miniature inch racks for smaller applications.

These cases can be isolated by thick layers of foam or may use spring-loaded shock mounting. A key structural weakness of front-mounted support is the shear stress placed on the mounting rails and the leading edge of the equipment. Racks, especially two-post racks, are often secured to the floor or adjacent building structure so as not to fall over. The size denotes the width of the faceplate for the installed equipment.

A pair of rails is mounted directly onto the rack, and the equipment then slides into the rack along the rails, which support it. Retrieved from ” https: The height of a rack can vary from a few inches, such as in a broadcast console, to a floor mounted rack whose interior is 45 rack units A variety of airflow patterns can be found, including front intakes and rear exhausts, as well as side intakes and exhausts.

The inch rack format with rack-units of 1. 14494 Labs Technical Journal. Rack Cabinet Buying Guide, http: An enclosed sealed cabinet with forced air fans permits air filtration to protect equipment from dust.


The rack don is a measure of vertical spacing and is common to both the 19 and 23 inch racks.

Category:DIN – Wikimedia Commons

When rack rails are too thin to tap, rivnuts or other threaded inserts can be used, and when the particular class of equipment to be mounted is known in advance, some of the holes can be omitted from the mounting rails. Low-wattage devices may not employ active cooling, but use only passive thermal radiation and convection to dissipate heat. From Wikipedia, the free encyclopedia. Cin servers designed for rack-mounting can include a number of extra features to make the server easy to use in the rack:.

Installation and removal of hardware in a square hole rack is very easy and boltless, where the weight of the equipment and small retention clips are all that is ein to hold the equipment in place.

Slides or rails for computers and other data processing equipment such as disk arrays or routers often need to be purchased directly from the equipment manufacturer, as there is no standardization on such equipment’s thickness measurement from the side of the rack to the equipment or means for mounting to the rail.

Servers and deep pieces dn equipment are often mounted using 4144 that are bolted to the front and rear posts as above, it is common for such rails to have an adjustable depthallowing the equipment to be supported by four posts, while also enabling it to be easily installed and removed.

End covers are typically secured with either a simple draw latch or a rotary cam “butterfly” latch, named for the shape of the twist handle. When there is a large number of computers in a single rack, it is impractical for each one to have its own separate keyboard, mouse, and monitor. The term relay rack appears on page at the bottom of column 1. Two-post racks provide two vertical posts.