IEC Dimensions of Mechanical Structures of the mm (19 in) Series Part 1: Panels and Racks. IEC Mechanical structures for electronic equipment – Dimensions of mechanical structures of the ,6 mm (19 in) series – Part Basic. IEC Dimensions of Mechanical Structures of the mm (19 Inch) Series Part 2: Cabinets and Pitches of Rack Structures.
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This gap allows a bit of room above and below an installed piece of equipment so it may be removed without binding on the adjacent equipment. A third common use for rack-mounted equipment is industrial power, control, and automation hardware. Once serial production started, they were built into custom-made racks, one per repeater. Racks are divided into regions, Archived from the original on From Wikipedia, the free encyclopedia. Nineteen-inch racks are also often used to house professional audio and video equipment, including amplifierseffects unitsinterfaces, headphone amplifiers, and even small scale audio mixers.
The strength required of the mounting posts means they are invariably not merely flat strips but actually a wider folded strip arranged around the corner of the rack. Nineteen-inch racks in two-post or four-post form hold most equipment in modern data centersISP facilities, and professionally designed corporate server rooms. These posts are typically heavy gauge metal or extruded aluminum.
Low-wattage devices may not employ active cooling, but use only passive thermal radiation and convection to dissipate heat. Rack Cabinet Buying Guide, http: Four-post racks allow for mounting rails to support the equipment at iecc front and rear. In other projects Wikimedia Commons. The distance of the right edge of the right mounting rail to the left edge of the left mounting rail ief millimetres 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.
Large server rooms will often group rack cabinets together so that racks on both sides of an aisle are either front-facing or rear-facing, which simplifies cooling by supplying cool air to the front of the racks and collecting hot air from the rear of the racks.
Two-post ief provide two vertical posts. 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.
Holes so arranged can either be tapped usually UNF thread, or, less often, 6mm metric or have square holes for cage nuts. A rack’s mounting fixture consists of two parallel metal isc also referred to as “posts” or “panel mounts” standing vertically. To protect equipment from shock and vibration road rack cases use an inner and outer case.
Patent 2,granted Oct. An enclosed sealed cabinet with forced air fans permits air filtration to protect equipment from dust.
inch rack – Wikipedia
The shape of small cases is 60927 by the rack rails and 600297 cover seal extrusions alone. All Wikipedia articles needing words, phrases or quotes attributed Wikipedia articles needing words, phrases or quotes attributed from November Commons category link is on Wikidata.
Views Read Edit View history. According to Telcordia Technologies Generic Requirements document GRCORE, during an earthquake, telecommunications equipment is subjected to motions that can over-stress equipment framework, circuit boards, and connectors.
Many wall-mounted industrial equipment enclosures have inch rack rails to support mounting of equipment. Common uses include server, telecom, broadcast video, lighting, audio, and scientific lab equipment. Two-post racks are most often used for telecommunication installations.
The rack unit is a measure of vertical spacing and is common to both the 19 and 23 inch racks. The posts have holes in them at regular intervals, with both posts matching, so that each hole is part of a horizontal pair with a center-to-center distance of Rack-mountable equipment is traditionally mounted by bolting or clipping its front panel to the rack.
The size denotes the width of the faceplate for the installed equipment. Production of clearance-hole racks is less expensive because tapping the holes is eliminated and replaced with fewer, less expensive, cage nuts. 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 The fans themselves can be difficult to replace. Bell Labs Technical Journal.