Cisco GainMaker Optoelectronic Node 1GHz with 65 86 MHz Split Installation Guide
A
A
ampere. A unit of measure for electrical current.
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.
attenuation
The difference between transmitted and received signal strength due to loss through
equipment, lines, or other transmission medium. Usually expressed in decibels.
attenuator
A passive device designed to reduce signal strength without distorting the waveform.
Usually specified in dB.
AUX
auxiliary.
B
bdr
baseband digital reverse. Proprietary technology for transporting reverse signals by
converting them to from analog to digital format, optionally multiplexing two or more
digitized reverse signals, and then converting the electrical signal to an optical format for
transmission to a hub or headend via fiber optic link.
bit
binary digit. A bit is the smallest unit of information understood by a computer. A bit can
take a value of 0 or 1. A byte, which is made up of 8 bits, can represent a single character, such
as the letter A.
Glossary
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