Glossary - Compaq 4200 User Manual

3U
AC
AC distribution
AC power supply
ambient temperature
array controller
backplane
bay
blower
bus ID
bus length
cabinet
A panel or enclosure that is 5.25 inches (133.35 mm) high.
Alternating current. The abbreviation for alternating current. DO NOT use
ac.
The method of distributing AC power within a StorageWorks enclosure,
tower, or rack (cabinet).
See power supply.
The air temperature in an area where a system is installed. Also referred
to as rack or enclosure intake air temperature, or room temperature.
See controller.
An electronic printed circuit board that distributes bus, data, control,
power, and other signals to element connectors.
The physical location of an element, such as a disk drive, I/O module,
EMU, power supply, and so forth, in an enclosure. Each bay is numbered
to define its location within a single bus or a dual bus.
The variable speed air flow device, similar to a fan, that creates air flow
within the enclosure to cool the elements.
See SCSI ID.
The length of a SCSI bus is the distance between two terminators.
A DIGITAL classic term for the StorageWorks enclosure with exterior
panels, and doors into which cable distribution units, enclosures, blowers,
and cables are mounted to form a storage subsystem.
See also rack.

Glossary