Glossary - Cisco Prisma II Hybrid Amplifier Installation Manual

Glossary

A
ac, AC
alternating current. An electric current that reverses its direction at regularly recurring
intervals.
AGC
automatic gain control. A process or means by which gain is automatically adjusted in a
specified manner as a function of input level or other specified parameters.
C
CA
conditional access. The system, software, and components necessary to provide or deny
subscribers selective access to specific services.
CAN
cancel. The cancel character.
CLI
command line interface. A command reference software that allows the user to interact with
the operating system by entering commands and optional arguments.
D
DAVIC
Digital Audio/Video Council. An international group of approximately 250 companies
developing an "end-to-end" standard for interactive digital media, including interfaces and
requirements for applications, systems, and networks. The group includes members of the
original MPEG Joint Technical Committee (JTC).
dc, DC
direct current. An electric current flowing in one direction only and substantially constant in
value.
DFB laser
distributed feedback laser. An injection laser diode that has a Bragg reflection grating in the
active region in order to suppress multiple longitudinal modes and enhance a single
longitudinal mode.
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