Cisco Cisco Digital Service Access Node (DSAN) 8211 Installation Guide
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ac, AC
alternating current. An electric current that reverses its direction at regularly
recurring intervals.
recurring intervals.
AC-3
audio compression - 3.
analog channel
A channel that occupies a fixed location in a 6 MHz bandwidth within the 54
MHz to 550 MHz range of the RF band. Analog video channels deliver one
traditional broadcast television channel in each 6 MHz band.
MHz to 550 MHz range of the RF band. Analog video channels deliver one
traditional broadcast television channel in each 6 MHz band.
ASI
asynchronous serial interface. Allows the intermittent transfer of data one bit at a
time rather than in a steady stream.
time rather than in a steady stream.
attenuation
The difference between transmitted and received signal strength due to loss
through equipment, lines, or other transmission medium. Usually expressed in
decibels.
through equipment, lines, or other transmission medium. Usually expressed in
decibels.
baseband
The original band of frequencies occupied by the signal before it modulates the
carrier frequency to form the transmitted signal. Characteristic of any network
technology that uses a single carrier frequency and requires all stations attached
to the network to participate in every transmission.
carrier frequency to form the transmitted signal. Characteristic of any network
technology that uses a single carrier frequency and requires all stations attached
to the network to participate in every transmission.
BTSC
Broadcast Television Systems Committee. An EIA committee created to develop
a standard for Multi-channel Television Sound (MTS) broadcasting. The
standard adopted was developed by Zenith Electronics Corporation
(transmission parameters) and dbx, Inc. (noise reduction system).
a standard for Multi-channel Television Sound (MTS) broadcasting. The
standard adopted was developed by Zenith Electronics Corporation
(transmission parameters) and dbx, Inc. (noise reduction system).
Glossary