PDU
A power distribution unit (PDU) is a device fitted with multiple outputs designed to distribute electric power, especially to racks of computers and networking equipment located within the data center. The term (PDU) may refer to two major classes of hardware power devices; the first and typically the general unqualified term refers to the category of relatively higher-cost floor-mounted power distribution devices which transform one or more larger capacity raw power feeds into any number of lower capacity distributed power feeds. These floor-mounted PDU devices are typically composed of transformers and circuit breakers and may optionally include monitoring controllers using protocols such as Modbus or SNMP. In a typical data center for example, there would be relatively few of these floor-mounted PDU devices, located along the walls or in central locations for larger spaces. Each floor-mounted PDU would feed a much larger number of racks and rows of racks.
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The boom of Data center PDU came during the dot-com bubble. Companies needed fast Internet connectivity and nonstop operation to deploy systems and establish a presence on the Internet. A data center or computer centre (also datacenter) is a facility used to house computer systems and associated components, such as telecommunications and storage systems.
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