How to choose a safe and suitable network cabinet！！！

How to choose a safe and suitable network cabinet

??If the network cabinet you choose isn't the right one, after installing the most expensive piece of installed equipment, the server, in the cabinet, you'll find that there isn't much space left in the cabinet. If you want to rent a cabinet from a telecom data center or rent a 1U or 2U space in the middle of a cabinet, as we all know, some telecom computer rooms only offer a cabinet rental service. but not a computer. Room rental service. In the next part of the computer room space, the computer room ISP provides access lines, power supply, cooling and other facilities to the users. This type of service is generally provided to large users Customers just need to tell us the specific requirements of the computer room operator, let the operator customize it , and flexibly wire and configure the customer's network. You can enjoy the comfort and smoothness of a top-level computer room.You don't have to spend a lot of money to build your own computer room.The most important thing is that customers can freely arrange the cabinets and themselves This is the equipment you need.

??However, if the network cabinet you have chosen is not suitable, when you place the most important piece of installed equipment, the server, in the cabinet, you will find that there is not enough space left in the cabinet. Instead, follow the checklist below to choose a cabinet that meets your installation priorities (safety, durability, compatibility, ease of installation, etc.) while staying within your budget. The first thing to consider is safety. Placing mission-critical IT equipment in lockable cabinets makes life easier for network administrators and limits the number of people who can open the cabinet.

??1. Physical requirements

??List all equipment installed in the cabinet and their complete measurement data (height, length, width, weight). The overall height of these devices will ultimately determine how much equipment will fit in the rack. Obviously, taller cabinets can hold more equipment and save space.

??Of course, maximizing the height of the cabinet is not the only consideration, as there is plenty of space behind the cabinet as well. This is why cabinet depth is measured. Choosing a deeper cabinet allows you to place two sets of equipment back-to-back to accommodate more equipment. Two rows of equipment can be installed in the cabinet using the above method. One row is loaded and unloaded through the cabinet front door and the other row is loaded and unloaded through the rear door. Cabinet position must be adjustable.

??Once you've calculated your cabinet space (measured in "U" or 1.75 inches), consider the size of your room. After stuffing the cabinet with additional equipment, you don't want to know right away. These extra devices often appear when you buy and install a cabinet. Therefore, a good rule of thumb is to increase the cabinet height by 20% to 30% to allow for system expansion. These spaces also improve equipment ventilation.

??Devices with brackets are designed to fit the width of the cabinet, so width is not a consideration. But for servers and other peripherals that cannot be mounted with brackets, the width is not negligible.

??The total weight of the equipment is often not light, so you should choose a cabinet that can hold about 1,500 pounds, that is, one with good stress and sturdy construction. For cabinets, the weight of the equipment determines whether the slide frame selected is standard or heavy, and also determines the choice of other accessories. Select a cabinet that is 100% compatible with all servers and must meet or exceed all his OEM manufacturer's Class 3 bracket standards. If you are installing a tower or tabletop unit, you will need the slide frame and mounting accessories.

??Since your installation will include network, communication, and power cables, you will need to purchase hook-and-loop straps or toothed straps to effectively secure the cables in your cabinet in an orderly fashion. It is convenient if the cabinet has a cable management module that allows the cables to be fixed directly to the vertical mounting rails. In either case, there should be sufficient retaining rings on the top and side walls inside the cabinet (to protect the cables). You can also lift the bottom plate of the cabinet to facilitate routing underneath.

??2. Cabinet type and grade

??Although it looks almost the same, there are several subdivisions depending on the application, and the general one is the wiring enclosure and the enclosure for installing the server The wiring enclosure is generally installed Because there are multiple terminal switches, so many network cables need to be connected, and it is not convenient to have doors on the cabinet, this kind of cabinet looks like a rack, and some Cabinet manufacturers call this product a wiring rack. More expensive routers and firewalls are usually placed in these kinds of cabinets because they need to protect the valuable equipment inside.

??1. Ordinary network cabinet

??This is a typical glass-door network cabinet. There are four cooling fans installed on the top of the cabinet. These are mainly used for ventilation and heat dissipation to keep the temperature in the cabinet constant. The bottom of the is hollow for ventilation and heat dissipation. The heat dissipation of the servers on the top of this cabinet is very good, but the heat dissipation of the servers in the middle and bottom is not ideal.

??2. Advanced network cabinet nettrackes.com

??The above cabinet is a relatively high-end network cabinet, ventilation and heat dissipation are through dense vents on the front and rear doors, which can well disperse the cold air of the computer room air conditioner. Placed around each server in the cabinet, the cooling effect of the whole cabinet is good, this kind of cabinet is made of exquisite materials, anti-corrosion and anti-rust, and the load-bearing capacity is comparable powerful.

??3. Main components

??Cabinet network equipment (hubs, routers, patch panels, keyboard/mouse/display sharers, tape drives, storage) and peripherals (monitors, keyboards, modems) in addition to servers requiring protection.

??The most important component is the power protector. All servers require an uninterruptible power system for power protection in various rack configurations. Even if your device occupies only 1U of space, you still need to protect it. Even equipment that does not require continuous operation should be protected with surge suppressors or linear regulators available in rack configurations.

??Don't forget power components such as power outlet strips. Use outlet strips when you don't want dozens of power cords snaking through your cabinet. Although you can use the power outlet strips on the 1U bracket models, you can mount the power outlet strips to any corner of the interior wall of your cabinet to make room for other equipment. Note that components that cannot be mounted on brackets will require additional trays, bracket accessories, and other mounting hardware.

??Next, add up the calorific value of the installed equipment. The 45U cabinet is top-to-bottom, side-to-side ventilated and allows for 3000-5000 BTU of total heat on average. If the total heat dissipation exceeds the maximum heat dissipation for the cabinet, you will need to purchase a fan that can be installed on the top or side of the cabinet. Top wall fans are more expensive but are twice as effective as side wall mounted fans. Since most of the heat is generated at the rear of the unit, sidewall fans should be installed at the rear of the cabinet.

??4. Installation

??Check the geometry of your equipment with the relevant dimensions of your cabinet to ensure it matches the bracket you choose. Rugged cabinets can hold up to 450 pounds, so make sure you have tools to retrieve your equipment, such as lift doors and carts. A good cabinet has wheels on the underside, so all you have to do is load the equipment you need into it and roll the cabinet into place.

??Measure the size of the room and the height of the ceiling, doors and elevators that the cabinet will pass through. Additionally, consider the different types of equipment in the cabinet and place the cabinet near power, network cable sockets, and communication sockets.

??Check the opening angle of the cabinet door when opening and closing the cabinet. Standard cabinet doors open to the right and hinges open to the left. Of course, the opposite cannot be ruled out. All doors and side panels should be easily opened for easy maintenance.

??When installing equipment cabinets into existing cabinet groups, the cabinets can be placed side-by-side for safety and neatness. However, for various reasons, some cabinet groups cannot be added or only some accessories can be added. The best cabinet group models are fully expandable and come with all the hardware needed to remove the cabinet side panels and screw the cabinets together to form a row.

??5. Price

??Price is always an important consideration, but you shouldn't sacrifice important features. It is necessary to choose a cabinet with good cost performance. Servers and peripherals are replaced quickly, but good cabinets take time. To compare the strengths and weaknesses of cabinets, it is important to compare several perceived performance indicators. Notice the word "add" in the figure of merit. This means that it can be expanded at any time. Many manufacturers only list the unit price of the cabinet without including the price of the equipment that needs to be installed in the cabinet. The price of cabinets and full sets should be taken into consideration as these devices add to the expense quickly. For equipment, avoid buying from those manufacturers.

??Finally, select the manufacturer that will manufacture the cabinet. Longevity is a recognized performance standard, requiring manufacturers to have a dedicated department to provide cabinet installation, proper installation of equipment, and accessories within a few years of sale. Also, make sure the manufacturer offers a lifetime warranty on the cabinet.