Installation Guide

Glossary
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channel map
A logical element that links a service with a channel so that the service can be viewed or used
by the subscriber. For example, a channel map could link The Golf Channel with channel 63
so that when subscribers tune to channel 63, they view The Golf Channel.
CLI
command line interface. A command reference software that allows the user to interact with
the operating system by entering commands and optional arguments.
CMTS
Cable Modem Termination System. A device, located at the headend or a distribution hub,
that provides complimentary functionality to the cable modems to enable data connectivity
over a hybrid fiber coax (HFC) network.
composite video
A video connection in which the brightness and color portions of the signal are combined into
one signal (signal for broadcast TV).
CW
continuous wave.
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).
DAXI
DSAN auxiliary input box.
dB
decibel. One tenth of a bel, the number of decibels denoting the ratio of two amounts of
power being ten times the common logarithm of this ratio.
dBm
decibels relative to 1 milliwatt.
dBmV
decibels relative to 1 millivolt.