HP 10622 Best practices for HP 10000 Series and HP 10000 G2 Series Racks - Page 46

Appendix a: glossary

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Appendix a: glossary Table 9 lists technical terms and associated description. Table 9. Definition of technical terms Term Ballast Chassis Dedicated circuit branch Dynamic loading capacity Electronic Industries Association (EIA) Electromagnetic interference (EM() Electrostatic discharge (ESD) EOL (End of Life) fixed stabilizer keyboard/video/mouse (KVM) switch PDU PNP (Plug-and-Play) static loading capacity U UPS (uninterruptible power supply) Definition A metal block that can be mounted in the sides of the rack to provide additional weight and protection against tipping. Rack-mountable configuration of a server or a storage component. A dedicated electrical circuit between a source and distribution point. A dynamic environment is one where the rack is shipped on a shock pallet with equipment installed or rolling racks with equipment installed to new locations within the data center. A term used for signifying discontinuation of products. An anti-tip stabilizer providing stability and support when equipment is installed, removed, or accessed within the rack. It is recommended that you use a stabilizer option kit with a stand-alone rack. A switch that allows a single keyboard, video display monitor, and mouse to be switched to any of a number of computers. Power Distribution Unit A standard that gives computer users the ability to plug a device into a computer and have the computer recognize that the device is connected. A static environment is one where the rack is positioned into placed and the leveling feet are extended prior to equipment being installed. A standard unit of measure for designating the height in computer enclosures and rack cabinets. One U equals 1.75 inches (44.5 mm). Measurements typically go from the bottom of the rack up. For example, a 4U chassis is 7 inches (177.8 mm) high. A 42U rack cabinet has 73.5 inches (1866.9 mm) of usable mounting space. A device that allows a computer to continue running for at least a short time after the primary power source is lost. 44

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Appendix a: glossary
Table 9 lists technical terms and associated description.
Table 9.
Definition of technical terms
Term
Definition
Ballast
A metal block that can be mounted in the sides of the
rack to provide additional weight and protection
against tipping.
Chassis
Rack-mountable configuration of a server or a storage
component.
Dedicated circuit branch
A dedicated electrical circuit between a source and
distribution point.
Dynamic loading capacity
A dynamic environment is one where the rack is
shipped on a shock pallet with equipment installed or
rolling racks with equipment installed to new locations
within the data center.
Electronic Industries Association (EIA)
Electromagnetic interference (EM()
Electrostatic discharge (ESD)
EOL (End of Life)
A term used for signifying discontinuation of products.
fixed stabilizer
An anti-tip stabilizer providing stability and support
when equipment is installed, removed, or accessed
within the rack. It is recommended that you use a
stabilizer option kit with a stand-alone rack.
keyboard/video/mouse (KVM) switch
A switch that allows a single keyboard, video display
monitor, and mouse to be switched to any of a number
of computers.
PDU
Power Distribution Unit
PNP (Plug-and-Play)
A standard that gives computer users the ability to plug
a device into a computer and have the computer
recognize that the device is connected.
static loading capacity
A static environment is one where the rack is positioned
into placed and the leveling feet are extended prior to
equipment being installed.
U
A standard unit of measure for designating the height
in computer enclosures and rack cabinets. One U
equals 1.75 inches (44.5 mm). Measurements typically
go from the bottom of the rack up.
For example, a 4U chassis is 7 inches (177.8 mm)
high. A 42U rack cabinet has 73.5 inches (1866.9
mm) of usable mounting space.
UPS (uninterruptible power supply)
A device that allows a computer to continue running for
at least a short time after the primary power source is
lost.