Equipment designed to be placed in a rack is typically described as rack mount, rack mount instrument, rack mounted system, rack mount chassis, subrack, rack mountable, or occasionally simply shelf. The height of the electronic modules is also standardized as multiples of 1.75 inches (44.45 mm) or one rack unit or U (less commonly RU). The industry standard rack cabinet is 42U tall.
Because of their origin as mounting systems for railroad signaling relays, they are still sometimes called relay racks, but the 19-inch rack format has remained a constant while the technology that is mounted within it has changed to completely different fields. The 19-inch (482.6 mm) standard rack arrangement is widely used throughout the telecommunication, computing, audio, entertainment and other industries, though the Western Electric 23-inch standard, with holes on 1-inch (25.4 mm) centers, prevails in telecommunications.
19-inch racks are often used to house professional audio and video equipment, including amplifiers, effects units, interfaces, headphone amplifiers, and even small scale audio mixers. They are also widely used for computer server equipment, allowing for dense hardware configurations without occupying excessive floorspace or requiring shelving. A third common use for rack mounted equipment is industrial power, control, and automation hardware.
Typically, a piece of equipment being installed has a front panel height 1⁄32 inch (0.031 inches / 0.787 millimetres) less than the allotted number of Us. Thus, a 1U rack mount computer is not 1.75 inches (44.5 mm) tall but is 1.719 inches (43.7 mm) tall. 2U would be 3.469 inches (88.1 mm) instead of 3.5 inches (88.9 mm). 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.
Shreyas Network Systems came into existence in the year2009. We are a sole proprietorship based business organization engaged in manufacturing and supplying a vast assortment of Server Racks, Networking Racks, Telecom Support Products, Telecom Racks, Thermal Management Racks, Industrial Cabinets and General Electronics. Our firm is reckoned among the clients for its transparent business dealings, qualitative product line and prompt delivery schedules. The products offered by us are highly demanded and appreciated in the industry for their unsurpassed quality standards and exceptional features like sturdy construction, precise designs, dimensional accuracy, seamless performance, corrosion resistance and long service life. Our range of products are developed using most advanced production techniques and quality approved materials that are sourced from the trusted vendors of the market.
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