NEC A1160 manual AC Connections, AC/DC Power Supplies, Power Control

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Power

Power

Each cell is independently powered. The power system is fully distributed and consists of the following components.

AC Connections

The AC input for each cell is two 15-ampere line cords. The line cords are connected to the power strips mounted in the rear of the cell.

AC/DC Power Supplies

The AC/DC power supplies take the AC input power and produce the DC power used by the cell components. Each cell contains two hot-pluggable AC/DC power supplies. The power supplies are rated for a maximum of 1800 watts at 200 volts or 1000 watts at 100 volts. Actual cell power consumption is significantly less and is determined by the system configuration and activity.

The output of the power supplies is 12 volts with a 3.3-volt keep-alive voltage for power control.

The power supplies are self-cooled.

Figure 2-10 shows the location of the two power supplies on the back of the cell.

Figure 2-10 Power Supplies

Power Supply Indicators

The power supplies have a green LED to indicate the state of the power supply and an amber LED to indicate a fault or failure in the power supply.

Power Control

2-12

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Contents EXPRESS5800/A1160 Technical Overview ƒProprietary Notice and Liability Disclaimer DecemberContents Contents Figures Page Tables ViiPage Using This Guide Who Should Use This GuidePage Safety Notices Safety NoticesPage Safety Notices for Users Outside of the U.S.A. and Canada Page Documentation Updates Scalable Symmetric Multiprocessing ServersOperating Systems Operating SystemsWindows Operating Systems Virtual Machine Monitors Virtual Machine MonitorsLinux Operating Systems Page Cell Component Express5800/A1160 CellProcessors Processor SocketsProcessors Multicore Processors Supported ProcessorsRules for Mixing Processors Extended Memory 64 Technology EM64TProcessor Voltage Regulator Modules Node ControllerMemory MemoryDimm Slot Numbering Memory BoardsDimm Capacity and Cell Memory Rules for Memory ExpansionDimm Capacity and Cell Memory Dynamic Dimm Sparing Indicators on the Memory BoardSubsystem Memory MirroringPCIe Card Carrier I/O Riser BoardPorts PCIe Card CarrierInbuilt RAID Controller Ports on Back of the CellAC/DC Power Supplies PowerPower Power ControlVolt Redundancy and AC Source Options Partitions and PowerUninterruptible Power Supply UPS CoolingCooling Peripherals PeripheralsBoot Options External PeripheralsSystem Clocks Expressscope MonitorSystem Clocks Fault Messages on the Expressscope Monitor LCD Fault Messages on the Expressscope Monitor LCDDevice Names on the Expressscope Monitor LCD CRU Inbuilt Virtualization Inbuilt VirtualizationTrusted Platform Module TPM For More InformationSystem Configuration Cell Interconnect and Multiple Cell SystemsCell Interconnect and Multiple Cell Systems System with Two CellsCell Identification Cell IdentificationSystem Serial Number Relation of Interconnect Port and Cable End to Cell IDCabinets CabinetsPartitions ClusteringPartitions Replaceable Components Redundant ConfigurationsRedundant Configurations Clustering SoftwareExpress5800/A1160 Configuration Summary Express5800/A1160 Configuration SummaryMinimum and Maximum Configurations Page Server Management System ComponentsNetwork Components Client Workstation Windows Domain ControllerManagement Server Console Manager Client SoftwareManagement Architecture Intelligent Platform Management InterfaceMain Components Management Board Management BoardService Processor Firmware HubTrusted Platform Module TPM Remote Console InterfacesRemote Console Interfaces PortsBios Server Management SoftwareManagement Software Components Esmpro Manager and AgentManagement Software Components Accessing Remote Monitoring Remote MonitoringCell Components Components on the Front of a CellComponents on the Rear of a Cell LCDComponents on the Rear of a Cell AC power cord