What do you mean by a few U's in the network cabinet? A complete collection of industry terms such as columns.

● What does the "U" in the cupboard mean?

"U" is the unit of height, 1U≈ 1.75 inch ≈4.445 cm. 42U means that the actual available height in the cabinet is 42U, about 1870mm, and so on. The "u" in the server, like this, refers to the height. "1U server" refers to a server product with a height of 1U and a height of about 4.445 cm.

● What is "19 inch standard rack layout"?

19 inch is the width unit, which is approximately equal to 483mm, and refers to the column spacing available for equipment in the cabinet. Standardized rack layout, that is, this width, is a European specification, which is recognized by most IT vendors in the world and belongs to a general specification. Most network products (such as rack switches, routers, distribution frames, KVM switches, firewalls, etc. Whether) and servers (such as rack servers) conform to the rack layout is marked in the product manual. If they are available, they can be installed in standard cabinets. If they do not conform to the standard rack layout, they can only be supported by trays in the cabinet and placed in the cabinet (such as tower servers, horizontal servers, CRT or CRT).

What does PDU mean?

"PDU" is the abbreviation of "power" in English. Issue? Unit? Power distribution equipment can also be translated into protocol? Data? Unit? Computer protocol data unit. It is similar in function to the household power supply terminal board, but the PDU is different in appearance, function, raw materials,

Generally speaking, the plug-in has made substantial progress in stability and safety. The latter is a professional commodity, which is mostly used in situations where the computer room requires high current, voltage, lightning protection and overload prevention, and can effectively maintain the safety of equipment operation.

What does "M5" mean?

"M5" is the specification of screws equipped in the cabinet. M5, that is, the outer diameter of the thread is 5.0 and the pitch is 0.8.

● What is a "column"?

Column, usually refers to the metal square hole strip used for equipment in the cabinet, plays a major supporting role in the cabinet, and its plate thickness determines the maximum weight of the equipment that can be installed. High-end or exquisite cabinet columns are clearly marked with "U" scale, which is convenient for us to install equipment. The thickness of professional columns is usually 1.8 mm-2.0 mm, which can meet the load-bearing requirements of most commodities.

● What is a "supporting foot"

Support foot refers to the support foot used to support the cabinet. It can also be called "device foot", "anti-inclined foot" and "ground angle". Its main purpose is to support the components and internal equipment of the cabinet, and then reduce the load of the cabinet casters. It can also adjust the height of the legs to make the cabinet stand horizontally on the ground with a skew of less than 5.

● What is a "tray"

Trays are divided into adjustable fixed trays and adjustable keyboard trays. Uses are all supporting equipment, the fixed tray has high bearing capacity, and it is used to place heavy equipment such as servers, while the keyboard tray is designed in a retractable layout, which can only place keyboards, mice and small equipment.