PDU (Power Distribution Unit) is mainly used in data centers to distribute, monitor, and control power to servers, computers, and other devices, thereby reducing equipment downtime, energy waste, and carbon footprint.
1. What is a distribution unit?
A power distribution unit (PDU) is a device that distributes power to various IT equipment within a data center. It is responsible for managing the power supply of the data center, ensuring that IT equipment has consistent and reliable power supply. Electric facilities use PDUs to monitor, control, and optimize power distribution.
2.How does a Power Distribution Unit (PDU) work?
Power distribution units work similarly to power strips. Instead of regulating or generating electricity, it relays alternating current (AC) from a single source to various devices, such as network equipment, computers, and peripherals.
The PDU is typically connected to a mains power source, which can be a generator, mains, or UPS. PDU is most commonly found in data centers. They are designed to be installed in different equipment racks to power rack-mounted equipment such as routers, switches, servers, or cooling fans.
Advanced PDUs offer extensive power monitoring and control in addition to normal power distribution. They detect fluctuations within the circuit and even provide reliable backup power in case of failure. They can also help determine power usage efficiency and other statistics important for data center power distribution and management.
3. What types of power distribution devices are there?
There are various types of PDUs available in the market. This includes basic PDU, management PDU, switch PDU, and monitoring PDU.
(1) Basic PDU
Basic PDU is the most basic type of PDU. They are designed to provide reliable power for IT equipment in data centers. They distribute power to multiple IT devices. However, they do not provide any surge protection; In addition to the PDU itself, a rack surge protector is generally required.
(2) Management PDU
The management type distribution unit aims to provide more comprehensive power management functions, such as monitoring, controlling, and regulating power usage in server farms. It can also provide reliable backup power during power outages.
(3) Measurement type PDU
The metering PDU has an integrated ammeter that can monitor real-time load levels to achieve efficient load balancing and overload prevention in large data centers. They are not connected to the data network, but can use smart power cords to enable remote monitoring.
The switch type distribution unit is designed to provide a wider range of power management functions. They use network grade power and allow users to individually control the sockets. They have digital meters that convey voltage and load level information. In addition, they are also compatible with SNMP and can be used for remote monitoring.
(4) Monitoring PDU
Monitored PDUs are designed to provide more advanced power monitoring capabilities. They can track power distribution in data centers and identify power fluctuations.