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Discrete Manufacturing (ERP)
The simplified definition of enterprise resource planning (ERP) software is a set of applications that automate finance and human resources departments and help manufacturers handle jobs such as or...
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Documents related to » pdu


Increasing Data Center Efficiency by Using Improved High-density Power Distribution
North American server installations are uniquely inefficient because of multiple circuits, use of floor space and weight, and more. A new approach to power

pdu  line) Elimination of the PDU transformers A transformer that is used to change 277/480 V to 230/400 V at the output of the UPS. These items are explained in more detail in the following sections. Three-phase branch power distribution '' 230V (line to neutral) instead of 208V (line to line) While the proposed power distribution method sounds like a minor change, it actually creates a very large impact on the power distribution system. First, the typical North American three-phase branch power distribution Read More...
An Improved Architecture for High-efficiency, High-density Data Centers
Globally, data center power and cooling infrastructure wastes more than 60 million megawatt-hours per year that do not contribute usefully to powering IT

pdu  the effect of removing PDU transformers. For more about the use of high-efficiency 415/240 V AC distribution in North American data centers, see APC White Paper 128, Increasing Data Center Efficiency by Using Improved High-Density Power Distribution. Variable-speed drives on pumps and chillers Improves cooling efficiency Pumps and chillers in the data center cooling plant traditionally operate with fixed speed motors. The motors in such arrangements must be configured for maximum expected load and worst Read More...
Emerging Services for Wireless Carrier Networks--Design Abstract
The transition to IP A wireless carrier s national or regional next generation core network will be an all-IP network in the sense that IP will be the network

pdu  Ipv4 | PDA | Pdu | PPP | PPP | PSTN | Personal Digital Assistant | Personal Digital Assistant PDA | Point-to-Point Protocol | Point-to-Point Protocol PPP | Protocol Data Unit | Protocol Data Unit Pdu | Public Switched Telephone Network | Public Switched Telephone Network PSTN | Qos | Quality of Service | Quality of Service Qos | Sigtran | SS7 | SS7 Over IP | SS7 Over IP Ss7oip | Ss7oip | Signaling System 7 | Signaling System 7 SS7 | Signaling Transport Working Group | Signaling Transport Working Group Read More...
Strategies for Deploying Blade Servers in Existing Data Centers
Blade servers have a major advantage over traditional ones@improving processing ability while using less power per server. But, with their smaller footprint

pdu  nearby Power Distribution Unit (PDU) capacity, and 3) Insufficient quantity of breaker positions. Any of these problems can prevent the ability to deliver high density electrical power. Note that of the two key problems described, the cooling distribution problem is the main constraint. For this reason, the primary focus of this paper is on selecting a cooling architecture. The power architecture will follow from the selected cooling architecture and is dependent on the specific brand of blade server. Read More...
Deploying High-density Zones in a Low-density Data Center
New power and cooling technology allows for a simple and rapid deployment of self-contained high-density zones within an existing or new low-density data center

pdu  of zone-specific UPS and PDU configurations in cases where the existing data center UPS is at capacity or is being phased out due to endof- life. These systems are rack-based and designed to be modular and scalable. Configurable with any level of redundancy Redundancy levels vary depending upon the criticality of the IT assets. Traditional data center design is such that the entire physical infrastructure is built to satisfy the redundancy requirements of the most critical set of assets. This type of Read More...

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