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  • What is PDU and how IT works?
    Apr 27, 2023
    With the gradual popularization of cloud computing, big data, and IoT applications, data centers are developing in the direction of green energy saving, modularity, and intelligence, keeping the balance inside the data center is the key to influencing the data center, and one of the influencing factors to keep the balance inside the data center is the power supply, so the next article will combine the types and installation methods of PDU (rack mount power distribution unit) power outlets to show you Therefore, this article will show you how to choose the PDU (Rackmount Power Distribution Unit) power outlets to best ensure the balance of power supply for the equipment in the cabinet. What is a PDU (Rackmount Power Distribution Unit) power outlet? PDU (Rackmount Distribution Unit) power outlet is an electronic device that provides safety protection for various electronic devices, instruments and instruments, and communication lines. When the electrical circuit or communication line because of external interference suddenly generated a spike current or voltage, a PDU (rack mount power distribution unit) power outlet can be a very short time on the shunt, to effectively avoid damage to other equipment in the circuit surge. Every network system needs to use the PDU power outlet, it can provide power for the equipment in the system to ensure normal operation, so the PDU power outlet is the necessary equipment in the network system. The function of PDU power outlet PDU power outlets are generally used in various fields such as data centers, distribution rooms, industrial plants and mines, production workshops, computer rooms and enterprise shopping malls, etc. In these application environments, the main functional role of PDU power outlets is reflected in the following three aspects: 1. the ability to provide a sufficient number of outlets that can be used to support the growing demand for networks; 2. the ability to help network administrators track the power consumed by devices, and provide safe and reliable power for devices that need power at any time; 3. can automatically detect the current and voltage, with the role of power supply overload protection. The difference between PDU power outlets and ordinary sockets What are the differences between PDU power sockets and ordinary sockets? Mainly reflected in the following five points: 1. The two functions are different Ordinary sockets only have the function of power supply overload protection and general control switch, while PDUs not only have power supply overload protection and general control switch but also have the functions of lightning resistance, anti-voltage, anti-static, and fire prevention. 2. The material of the two is different The common socket is made of plastic, while the PDU power socket is made of metal, with an anti-static effect. 3. The application areas of the two are different Ordinary outlets are generally used in the home or office to provide power for computers and other appliances, while PDU outlets are generally used in data centers, network systems, and industrial environments, installed in equipment racks to provide power for switches, routers, and other equipment. 4. The load power of the two is different The common socket cable configuration is weak, its current number is generally 10A/16A, and the rated load power is 4000W, while the PDU power socket configuration is better than the configuration of the common socket, its current number can be 16A/32A/65A and so on to meet more needs, its rated load power can be more than 4000W, to meet the requirements of the server room power. And when the PDU power socket load is too large, it can automatically power off, with a certain fire function. 5. The service life of the two is different The life span of ordinary sockets is generally 2~3 years, and the number of insertions and removal is around 4500~5000, while the life span of PDU power sockets can reach 10 years, and the number of insertions and removal is up to 10000, which is more than 5 times of ordinary sockets. PDU (rack mount power distribution unit) power outlet installation and points to note There are two main installation methods for PDU (Rackmount Distribution Unit) power outlets, which are horizontal and vertical installation: ① Horizontal 482.6*44.4*44.4 mm (1U) rack-mountable PDUs, mainly used with open frame racks and equipped with audio/video equipment. ② Vertical type 0U PDUs make the power distribution outlets closer to the equipment being powered. This mounting style is preferred by data centers because they do not take up rack space and require shorter power cords and easy cable routing management. This type of installation ensures that each power cord is routed in an organized manner. In a data center application environment, it is recommended to choose a vertically mounted 0U size product whenever possible, which makes efficient use of space and reduces cable routing clutter. When using PDU power outlets, we should pay attention to the following four points: 1. Please do not touch the power plug or connector with wet hands. 2. Do not use the PDU power outlet near the water. 3. Do not install the PDU power outlet near any heat source, such as radiators, heaters, amplifiers, stoves, and other heat-generating devices. 4. Do not attach metal objects or any other conductive materials to the power cord of the PDU power outlet. How to choose a PDU (rack mount power distribution unit) power outlet In most cases, choosing the best PDU (rack mount power distribution unit) power outlet will often involve hundreds of models, as well as other challenges such as considering system availability and the ability to power higher power density devices. Once a rackmount PDU is selected, IT administrators need to consider whether the product can support the next generation of IT equipment, taking into account factors such as power capacity, outlet type, and number. Different PDUs (rackmount power distribution units) have many different product features, power ratings, and types of input and output cable connections. Choosing the right rackmount PDU is sometimes not easy, especially when you don't know exactly what equipment is installed in the rack. New trends, including virtualization, converged infrastructures with computing, storage, and networking, and the need for high efficiency, make it important to think holistically about how to choose a rackmount PDU. Choosing the right rack PDU for a particular rack requires information about the equipment in the rack, the power distribution at the site, and the need for other ancillary features. In most cases, there is an "inside-out" sequence for selecting a PDU (rackmount power distribution unit) power outlet: ① Determine the type and number of output outlets; ② Estimating the power distribution capacity; ③ Determine the type of input sockets; ④Select the visualization function and control option of the branch circuit; ⑤ Selecting the appearance and installation method. Summary PDU power outlets have functions that ordinary outlets do not have, and I believe that in the future, PDU power outlets will not only be used in network systems but will also replace ordinary outlets in thousands of homes.
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