Cisco Model GS7000 4-Port Node 1 GHz with 42 54 Split Installation Guide
Glossary
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dBW
decibels relative to 1 watt.
dc, DC
direct current. An electric current flowing in one direction only and substantially constant in
value.
value.
distribution system
The part of a CATV system consisting of the transmission medium (coaxial cables, fiber optic
cables, etc.) used to carry signals from the headend system to subscriber terminals.
cables, etc.) used to carry signals from the headend system to subscriber terminals.
duplexer
A device which permits the connection of both a receiver and a transmitter to a common
antenna.
antenna.
E
EEPROM
electrically erasable programmable read-only memory.
EPROM
erasable programmable read-only memory.
EQ
equalizer.
equalization
The process of compensating for an undesired result. For example, equalizing tilt in a
distribution system.
distribution system.
F
FM
frequency modulation. A transmission technique in which the frequency of the carrier varies
in accordance with the modulating signal.
in accordance with the modulating signal.
frequency
The number of similar shapes in a communications or electrical path in a unit of time. For
example, the number of sine waves moving past a fixed point in a second.
example, the number of sine waves moving past a fixed point in a second.
frequency agile
The ability to change from one frequency to another without changing components.