Fast Ethernet Adapter Installation and Support Guide

Glossary
Fast Ethernet Adapter Installation and Support Guide—425685-003
Glossary-9
built configuration
built configuration. A configuration revision for which a system image and activation
package have been created.
built-in command. In the Open System Services (OSS) environment, a command that is
implemented within the /bin/sh file. Some built-in commands are also available as
separately executable files.
bypass mechanism. Equipment that permits switching from one power source to another.
For example, a bypass mechanism on an uninterruptible power supply (UPS) would
switch to an alternative power source (such as a standby power generator or
commercial utility source) when maintenance must be performed on the UPS.
byte-synchronous. A type of Open Systems Interconnection (OSI) Layer-2 protocol that
uses synchronous transmission techniques and requires a character code to define
terminal and line control sequences. Data is always transmitted in a block.
cable channel. A cable management conduit that protects the cables that run between two
system enclosures in a double-high stack. Each system enclosure has two cable
channels running vertically on its service side: one on the left-hand side of the
enclosure, and one on the right-hand side of the enclosure.
cable guidepost. A cable management rod that routes cables exiting the upper enclosure
in a double-high stack to prevent the cables from hanging down in front of the
customer-replaceable units (CRUs) in the base enclosure. A cable guidepost extends
from the base of each cable channel.
cable support. A piece of cable management hardware that secures system cables. The
cable support attaches to the service side of a system enclosure near the bottom of the
enclosure. Cable ties for securing system cables are threaded through the cable
support. The cable support also contains the group and module ID labels and the rear
group service light-emitting diode (LED).
cache (cache memory). A small, fast memory holding recently accessed data designed to
speed up subsequent access to the same data. Cache memory is built from faster
memory chips than main memory, and it is most often used with process or main
memory but also used in network data transfer to maintain a local copy of data.
cached bindings. A copy in virtual memory of the data pages containing symbolic
references that were rebound when a loadfile was loaded. The cached bindings are
associated with a library import characterization that characterizes the set of loadfiles
to which the symbols were bound. If the same file is subsequently loaded in an
equivalent environment in the same processor, the cached bindings can be reused.
See fastLoad.
CAE. See common applications environment (CAE).
canonical input mode. For an Open System Services (OSS) process, a terminal input
mode in which data is not made available to the process until an entire logical line