DIN 41494 PDF

Buy DIN () Mechanical Structures For Electronic Equipment; Mechanical Structures Of The ,6 Mm (19 Inch) Series; Components On Front . Buy DIN () Asa Panel Mounting Racks; Stacking Of Sets from SAI Global. Buy DIN PANEL MOUNTING RACKS FOR ELECTRONICS EQUIPMENT; RACKS AND PANELS, DIMENSIONS from SAI Global.

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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 Ina durable fiber reinforced plastic inch rackmount case was patented by ECS Composites and became widely used in military and commercial applications for electronic deployment and operation.

The earliest repeaters from were installed in ad-hoc fashion on shelves, in wooden boxes and cabinets. 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. In the event of a nut being stripped out or a bolt breaking, the nut can be easily removed and replaced with a new one.

From Wikipedia, the free encyclopedia.

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 Low-wattage devices may not employ active cooling, but use only passive thermal radiation and convection to dissipate heat.

By using this site, you agree to the Terms of Use and Privacy Policy. As a result, 4-post racks 4494 become common, with such racks featuring a mirrored pair of rear mounting posts. The term relay rack appears on 411494 at the bottom of column 1. This of course varies by manufacturer, the design of the rack and its purpose, but through common constraining factors xin as raised floor tile dimensionsthese dimensions have become quite common. Many wall-mounted industrial equipment enclosures have inch rack rails to support mounting of equipment.

19-inch rack

Rack-mountable equipment is usually designed to occupy some integer number of U. A key structural weakness of front-mounted support is the shear stress placed on the mounting rails and the leading dib of the equipment. However, not all equipment is suitable for this type of mounting.

Two-post racks are most often used for telecommunication installations. The next innovation in rack design has been the square-hole rack.

Rack Cabinet Buying Guide, http: Common uses include server, telecom, broadcast video, lighting, audio, and scientific lab equipment. Racks carrying telecom equipment like routers and switches often have extra width to accommodate the many cables on the sides. A variety of airflow patterns 411494 be found, including front intakes and rear exhausts, as well as side intakes and exhausts.

Category:DIN – Wikimedia Commons

Installation and removal of hardware in a square hole rack is very easy and boltless, where the weight 41449 the equipment and small retention clips are all that is necessary to hold the equipment in place. This is usually required by local building codes in seismic zones. Production of clearance-hole racks is less expensive because tapping the holes is eliminated and replaced with fewer, don expensive, cage nuts. However, some rack equipment has been designed to make fan replacement easy, using quick-change fan trays that can be accessed without removing the cabling or the device from the rack, and in some cases without turning off the device so that operation is uninterrupted during replacement.

The posts are 4144 0. A series of studies led to the adoption of frames 7 feet 2. The height of the different panels will vary, Servers and deep pieces of equipment are often mounted using rails 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.

Racks, especially two-post racks, are often secured to the floor or adjacent building structure so as not to fall over. Touring musicians, theatrical productions, and sound and light companies use road case racks. A standard inch server rack cabinet is typically 42u in height, 19 inches 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.

The fans themselves can be difficult to replace. Computer servers designed for rack-mounting can include a number of extra features to make the server easy to use in the rack:.

inch rack – Wikipedia

The height 4149 the electronic modules is also standardized as multiples of 1. Racks are divided into regions, Views Read Edit View history. 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.

When in place, the equipment may also then be bolted to the rack. Patent 3,granted June 4, In other projects Wikimedia Idn. The amount of motion and resulting stress depends on the structural characteristics of the building and framework in which the equipment is contained, and the severity of the earthquake.

Byit was an established standard with 414994 tapped for screws with alternating spacings of 1. To protect equipment from shock and vibration road rack cases use an inner and outer case. The distance of the right edge of the right mounting rail to the left edge of 414994 left mounting rail is millimetres Retrieved from ” https: A third common use for rack-mounted equipment is industrial power, control, and automation hardware.

Equipment can be mounted either close to its center of gravity to minimize load on its front panelor via the equipment’s front panel holes.