In the IDC computer room, cabinets generally refer to server cabinets. Cabinets are dedicated to installing 19″ standard equipment such as servers, monitors, UPS and non-19″ standard equipment. Server cabinets are used to combine installation panels, plug-ins, plug-in boxes, electronic components, devices and mechanical parts and components to form an integrated installation box. The server cabinet consists of a frame and a cover (door), generally has a rectangular shape, and is placed on the ground. It provides an appropriate environment and safety protection for the normal operation of electronic equipment. This is the first-level assembly second only to the system level. A cabinet that does not have a closed structure is called a rack.
The server cabinet has good technical performance. The server cabinet should have anti-vibration, anti-impact, anti-corrosion, dust-proof, waterproof, and anti-radiation properties to ensure stable and reliable operation of the equipment. The server cabinet should have good usability and safety protection facilities, easy to operate, install and maintain, and ensure the safety of the operator.
Server cabinet specifications
Server cabinets have requirements for depth, height, load-bearing, etc. The heights include 2.2 meters, 2.0 meters, 1.8 meters, 1.6 meters, 1.4 meters, 1.2 meters, 1 meter, etc.; the widths include 800mm, 700mm or 600mm; and the depths include 800mm, 900mm and 1000mm.
It can be configured with: dedicated fixed tray, dedicated sliding tray, power bracket, casters, anchors, cable management rings, cable management racks, L brackets, extended beams, etc. The main frame, front and rear doors, left and right side doors can be quickly disassembled and assembled.
Fixed pallet: used to install various equipment, with various sizes and wide applications, including 19″ standard pallets, non-standard fixed pallets, etc. The depth of conventional fixed pallets is 440mm, 480mm, 580mm, 620mm, etc. The load-bearing capacity of fixed pallets is not less than 50KG.
Sliding tray: used to install keyboards and other equipment, can be easily pulled out and pushed back; 19″ standard sliding tray is suitable for any 19″ standard cabinet. The conventional sliding tray has two depth specifications of 400mm and 480mm. The load-bearing capacity of the sliding tray is not less than 20KG.
Power distribution unit: Optional power socket, suitable for any standard power plug, with 19″ mounting frame, flexible installation. Specifications: 6 sockets. Parameters: ~220V, 10Amp.
Cable management rack: 19″ standard cable management rack. Can be used with any TOPER series cabinet. 12-hole cable management rack works best with 12-port, 24-port, and 48-port patch panels.
Cable management ring: a cable management device specially used for TOPER 1800 series and TOPER Server series cabinets. It is very convenient to install and remove, and the number and position of use can be adjusted at will.
L bracket: L bracket can be used with the cabinet to install 19″ standard equipment in the cabinet, especially heavy 19″ standard equipment, such as rack-mounted servers, etc.
Blind panels: Blind panels are used to cover the empty space in a 19″ standard cabinet and are available in 1U, 2U, and other specifications. Conventional blind panels are available in 1U and 2U.
Extension beam: a device specially used for TOPER 1800 series and TOPER Server series cabinets, used to expand the installation space in the cabinet. It is very convenient to install and remove. It can also be used with the installation of wiring racks and power distribution units. It has flexible forms.
Mounting nut (square nut): Applicable to any TOPER series cabinet, used for the installation of all equipment in the cabinet, including the installation of most accessories of the cabinet.
Keyboard tray: used to install a standard computer keyboard, compatible with all specifications of computer keyboards on the market; can be folded 90 degrees. The keyboard tray must be used with the sliding tray.
Speed-adjustable fan unit: installed on the top of the cabinet, it can adjust the fan speed according to the ambient temperature and equipment temperature, effectively reducing the noise in the computer room.
Speed regulation mode: manual, stepless speed regulation.
Rack-mounted fan unit: 1U in height, can be installed at any height in a 19″ standard cabinet, and can be configured according to the heat source in the cabinet.
Cabinet-the right choice method
By following the following checklist, you can select a cabinet that meets your installation priorities (including security, durability, compatibility, and ease of access) without breaking your budget. Security should be the first consideration. Putting mission-critical IT equipment in a lockable cabinet will make network administrators feel more at ease, thus limiting the number of people who can open the cabinet.
Physical requirements list all the equipment installed in the cabinet and its complete measurement data: height, length, width, weight. The total height of these equipment will ultimately determine how much equipment can be installed in the cabinet. Obviously, a tall cabinet can hold more equipment and save more space.
Of course, making the most of the height of the cabinet is not the only consideration. There is also a lot of space at the back of the cabinet that can be used. This is why it is necessary to measure the depth of the cabinet. Choosing a deeper cabinet allows you to install two sets of equipment face to face, thereby installing more equipment. The above method can be used to install two rows of equipment in the cabinet, one row is loaded and unloaded from the front door of the cabinet, and the other row is loaded and unloaded from the back door. The cabinet should have adjustable positions. After calculating the cabinet space (in “U or 1.75 inches), you must also consider the size of the room. You don’t want to see that you have filled the cabinet and found that you need to install more equipment soon. Once you buy the cabinet and install it, these extra equipment often appear. So, as a basic principle, the height of the cabinet should be 20% to 30% more to prepare for system expansion. This space also improves the ventilation conditions of the equipment. Equipment with brackets does not need to consider width because it is designed according to the width of the cabinet. But for servers and other peripherals that cannot be installed with brackets, width cannot be ignored.
Since the total weight of the equipment is often not light, you should choose a cabinet that can hold about 1,500 pounds. In other words, you should choose a sturdy cabinet with a good load-bearing structure.
Cabinet grade
Although cabinets all look the same, there are several types according to their uses. The most common ones are cabinets for wiring and cabinets for placing servers. Cabinets used for wiring are generally used to place multiple terminal switches, so there will be a lot of network cables that need to be connected, and it is not convenient to have a door in the cabinet, so this type of cabinet looks more like a rack, and some cabinet manufacturers call this product a wiring rack; in addition, cabinets used to place servers must have doors and locks because they need to protect the valuable equipment inside, so more expensive routers and firewalls are generally placed in this type of cabinet.
Take the server cabinet for example, there are different grades: this is an ordinary server cabinet with a glass door. The server cabinet has four cooling fans installed on the top of the cabinet, which are mainly used for ventilation and heat dissipation to provide a good constant temperature environment inside the cabinet. The bottom of the cabinet is hollowed out for ventilation and heat dissipation. The heat dissipation effect of the server on the top of this cabinet is very good, but the heat dissipation of the server in the middle and lower parts is not ideal.
The cabinet above is a relatively high-end server cabinet, which is ventilated and dissipates heat through densely packed air holes on the front and rear doors. Therefore, the cold air from the computer room air conditioner can be well distributed around each server in the cabinet, and the heat dissipation effect of the entire cabinet is good. Moreover, this cabinet is made of exquisite materials, is anti-corrosion and rust-proof, and has a relatively strong load-bearing capacity.
Factors that users should consider when purchasing a cabinet
Reliable quality assurance
It is very important to choose a suitable server cabinet and wiring cabinet. Any negligence may lead to huge losses. No matter which brand of product, quality is the first thing users should consider.
Load-bearing guarantee
As the density of products placed in the cabinet increases, good load-bearing capacity is a basic requirement for a qualified cabinet product. Cabinets that do not meet the specifications may be of poor quality and cannot effectively and properly protect the equipment in the cabinet, which may affect the entire system.
Temperature control system
The cabinet has a good temperature control system inside to avoid overheating or overcooling of the products inside the cabinet to ensure the efficient operation of the equipment. The cabinet can be selected as a full ventilation series, equipped with fans (the fans have a life guarantee), and can be installed with independent air conditioning systems in hot environments and independent heating and insulation systems in cold environments.
Anti-interference and other
A fully functional cabinet should provide various door locks and other functions, such as high anti-interference performance such as dustproof, waterproof or electronic shielding; it should also provide suitable accessories and installation accessories to make wiring more convenient, easy to manage, and save time and effort.