Cisco Cisco Digital Service Access Node (DSAN) 8210 Installation Guide
78-4041038-01 Rev B
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A
ac, AC
alternating current. An electric current that reverses its direction at regularly recurring
intervals.
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 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.
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.
equipment, lines, or other transmission medium. Usually expressed in decibels.
B
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.
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).
for Multi-channel Television Sound (MTS) broadcasting. The standard adopted was
developed by Zenith Electronics Corporation (transmission parameters) and dbx, Inc. (noise
reduction system).
C
CATV
cable television.
Glossary