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Understanding Power Distribution Units in Data Centers and Telecom

2023/03/31 丨Technical

Power distribution units or PDUs are key components in data centers and telecommunication facilities. These devices ensure the efficient distribution of power to the various servers, switches, and other equipment that make up a data center or telecommunications infrastructure.


What is a Power Distribution Unit (PDU)?


A power distribution unit (PDU) is an electrical device used to distribute and manage power to multiple devices in a data center or telecommunications facility. It takes the main power supply and divides it into smaller branches, allowing safe and efficient distribution of power to devices. the PDU can range from a basic unit that simply divides the power supply to more advanced models that provide monitoring, remote management and other advanced features.


Types of PDUs


Basic PDUs: Provide basic power distribution without any additional features or functions. They are typically rack-mounted with multiple outlets to distribute power from a single source to multiple devices.


Metered PDUs: Metered PDUs offer the added benefit of local power monitoring with a built-in power meter to monitor the power consumed by each outlet or group of outlets. Ideal for data centers and IT cabinets to monitor power and optimize power usage.


Monitored PDUs: Monitored PDUs provide remote power monitoring and are able to track power consumption, voltage and other parameters in real time. This allows for greater visibility into power usage and helps prevent potential problems before they escalate.


Switched PDUs: Switched PDUs provide remote power control, enabling operators to turn outlets on or off from a remote location. This feature is useful for restarting equipment, managing power usage, and performing maintenance tasks without physically touching the equipment.


Intelligent PDUs: Combining the features of both monitored and switched PDUs, Smart PDUs offer advanced power management features, including remote monitoring, control and reporting. They may also include environmental monitoring sensors for temperature, humidity and airflow, providing a comprehensive solution for power and environmental management.


Features of PDUs in Data Centers and Telecommunications


Power Distribution Units (PDUs) are critical to maintaining efficient and reliable operations in data centers and telecommunications facilities. Some of the key benefits they provide include:


Efficient Power Distribution: PDUs ensure that power is evenly distributed among equipment, preventing overloads and ensuring optimal performance.


Remote Monitoring: PDUs allow remote monitoring of power usage, load levels and the status of different circuits, power supplies, etc. This provides visibility into the health and performance of the power infrastructure.


Enhanced Reliability: By providing stable and consistent power, PDUs help minimize the risk of equipment failure and downtime.


Reduced Energy Consumption: With greater understanding of power usage, operators can identify inefficiencies and make adjustments to save energy and reduce costs.


Scalability and Flexibility: Power Distribution Units (PDUs) can be easily added or replaced as needed, ensuring that power distribution requirements are met as the data center or telecom facility grows and evolves.


Benefits of PDUs in Data Centers


PDUs are an important part of the power infrastructure in a data center because they help ensure that power is distributed efficiently and reliably to all equipment. Data centers typically use multiple PDUs, each connected to a different power source, such as a UPS (uninterruptible power supply) or generator. This provides redundancy so that if one power supply fails, the device can continue to operate on power from another source.


PDUs also provide a range of functions to help manage power consumption in data centers. For example, some PDUs have built-in electricity meters that monitor power usage and provide energy efficiency information. Other PDUs may have the ability to remotely control electrical outlets, allowing administrators to turn equipment on or off as needed.


Benefits of PDUs in Telecommunications


Power Distribution Units (PDUs) are also commonly used in telecom applications, where they serve a similar purpose as they are used in data centers. PDUs in telecom applications are used to distribute power to a variety of devices, including routers, switches, and other networking equipment.


In telecom applications, PDUs are often connected to DC power sources, such as battery backup systems, rather than AC power. This allows telecommunications equipment to continue operating even in the event of an AC power outage.


Telecom PDUs may also include features such as surge protection, power filtering and remote management capabilities. Surge protection is important in telecom applications because network equipment is sensitive to power fluctuations and surges. Power filtering can help ensure that the power supplied to equipment is clean and consistent, which can help prevent damage and downtime.


Remote management capabilities are also important in telecom applications, where network equipment is often located in remote or hard-to-reach locations. Remote management allows network administrators to monitor and control power to telecom equipment from a central location, helping to ensure uptime and minimize downtime.


Matismart Smart Power Distribution Unit


Matismart's intelligent DC power distribution unit system adopts a modular design. It consists of DC power distribution unit, branch power switch and branch metering part. The installation method is standard 3U rack installation. The system is suitable for base station operators such as China Tower, China Telecom, China Mobile, and China Unicom.

Intelligent DC Power Distribution Unit



In summary, PDUs play an important role in the efficient and reliable power distribution of data centers and telecommunication facilities. By understanding the different types of PDUs and their benefits, operators can choose the most suitable solution for their specific needs, ensuring high performance, reducing costs, and improving overall operations.

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