Appendix A: Glossary - HP 245161-B22 - 10642 42U Rack Shock Pallet Best Practices Manual

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