By Jessie | 14 October 2020 | 0 Comments

19-inch Standard Cabinet Size Standard

                                                                                 19-inch Standard Cabinet Size Standard

 3"U" and "19 inches" for electronic standard cabinets.
U is a unit representing the external size of the server. It is the abbreviation of the unit. The detailed size is determined by the EIA as an industry group.
 
1 U = 44.45 mm = 1.75 inches 1 inch = 25.4 mm 19'= 482.6 mm 1 inch

The reason for specifying the size of the server is to keep the server in proper size so that it can be placed on a rack made of iron or aluminum. There are fixed server screw holes on the rack so that it can be matched with the server screw holes and then fixed with the screw, so as to facilitate the installation of each server required space. Chinese style
The specified size is the server's width (48.26 cm = 19 inches) and height (4.445 cm multiple). Since the width is 19 inches, the rack that meets this requirement is sometimes called a "19-inch rack". The basic unit of thickness is 4.445 cm. 1U is 4.445 cm, 2U is 2 times of 1U is 8.89 cm. _19-inch standard cabinet_
19 represents the width, which is the cabinet where a 19-inch rack server can be placed.

The cabinet is also divided into U degrees and depth; Generally, it is 42U_height, where 1U_and 19 inches are the industrial standards formulated by EIA. Chinese style
The structure of the standard cabinet is relatively simple, including a basic frame, internal support system, wiring system, and ventilation system. The appearance of a 19-inch standard cabinet has three conventional indexes: width, height, and depth. Although the installation width of the 19-inch panel equipment is 465.1 mm, the physical width of the cabinet is 600 mm and 800 mm. The height generally ranges from 0.7M to 2.4M, and the common finished 19-inch cabinets are 1.6M and 2M. The depth of the cabinet generally ranges from 450 mm to 1000 mm. According to the size of the equipment in the cabinet, manufacturers can customize products with special depth. The common finished 19-inch cabinet depth is 450 mm, 600 mm, 800 mm, 900 mm, and 1000 mm. The height of equipment installation in a 19-inch standard cabinet is expressed by a special unit "U", 1U = 44.45mm. Equipment panels used in 19-inch standard cabinets are generally manufactured according to the specifications of nU. For some non-standard equipment, most of them can be fitted into 19-inch chassis and fixed by additional adapter baffles. Much engineering-grade equipment has a 19-inch panel width, so the 19-inch cabinet is the most common standard cabinet. Chinese style
42U refers to height, 1U = 44.45mm, 42U cabinet can not be equipped with 42 1U servers, generally 10-20 normal, because they need to be separated between heat dissipation.
19 inches is 482.6 mm wide (there are "ears" on both sides of the equipment, and the distance between the installation holes of the ears is 465 mm). The depth of the equipment is different. The national standard does not specify the depth of the equipment, so the depth of the equipment is determined by the equipment manufacturer;. Therefore, there is no 1U cabinet, only 1U cabinet, there are 4U-47U cabinets, that is to say, a 42U cabinet can be installed theoretically. High equipment, but generally 10-20 normal, because they need to be spaced between heat dissipation.

1. 19-inch standard cabinet size:

The height of equipment installation in a 19-inch standard cabinet is expressed by a special unit "U", 1U = 44.45mm. U refers to the effective use of space inside the cabinet. The panel of standard equipment using a 19-inch standard cabinet is generally manufactured according to the specifications of n U. A kind of
For some non-standard equipment, most of them can be fitted into 19-inch chassis and fixed by additional adapter baffles. The panel width of most engineering-grade equipment is 19 inches and the installation hole spacing is 465 mm. Therefore, as long as the cabinet can meet the installation of most 19-inch equipment, the cabinet is the standard cabinet. A kind of
1 inch = 25.4 mm, 19 inch = 482.6 mm.
 
Aluminum enclosures for electronics, The appearance of a 19-inch standard cabinet has three conventional indexes: width, height, and depth. The physical width of the cabinet is usually 600 mm and 800 mm. The height is generally from 0.7M to 2.4M. According to the number of equipment in the cabinet and the uniform style, manufacturers can customize the special height. The common finished 19-inch standard cabinet height is 1.6M, 1.8M, and 2M. The depth of the cabinet generally ranges from 600 mm to 1000 mm. According to the size of the equipment in the cabinet, manufacturers can customize products with special depth. The common finished 19-inch standard cabinet depth is 600 mm, 700 mm, 800 mm and 900 mm. 19 "The structure of the standard cabinet is relatively simple, including the basic frame, internal support system, wiring system, and ventilation system.
 

2_19 inch standard cabinet purchase elements:

Server cabinets and network cabinets are usually made of cold-rolled steel sheets or profiles, which are used to store computer and related control equipment. They can provide protection for storage equipment, shield electromagnetic interference, arrange equipment in an orderly and orderly manner, and facilitate the maintenance of equipment in the future. The following points should be paid attention to when purchasing a 19-inch standard cabinet:
(1) The cabinet production standards are in accordance with ISO quality management system standards and compatible with 19 international standards and other standards. (2) Material selection for the cabinet: high quality cold-rolled and cold-rolled stretched steel sheets with thickness over 1.5mm. A kind of
(3) Processing technology of front door and door lock of cabinet: Thickness of tempered glass, style of door lock, and double opening of back door are conducive to saving space, convenient installation and disassembly. A kind of
(4) Surface treatment technology of cabinet steel plate. (5) Coating technology for cabinet surface. (6) Technical requirements for cabinet steel plate processing. A kind of
(7) Purchasing cabinet fasteners, installing screws, nuts, and casters, and selecting foot nails. A kind of
(8) Selection of cabinet electrical parts: power selection contains CCC certification. Fan speed, noise, service life, etc. (9) Design standard of the cabinet. A kind of
(10) Technical and environmental requirements for cabinet use: the cabinet should be grounded to ensure that the cabinet is effectively grounded. Wiring holes are left on the upper and lower sides of the cabinet. The large wiring cover plate at the bottom of the cabinet can be adjusted. The cabinet is assembled quickly and can be disassembled completely and quickly. The overall load-bearing cabinet. Working environment. A kind of
(11) After-sales service requirements for server cabinets and network cabinets.
 

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