Installation Guide

Glossary
28 4035812 Rev B
equalizer
Controls the tilt to the drop ports. It does not affect the feeder cable signal. An EQ value is
selected for each installation to provide the specified output tilt.
F
F-connector
A screw-on coaxial connector typically used inside homes or on drop cabling.
FEC
forward error correction. System of data transmission in which redundant bits generated at
the transmitted end are used by the receiver to detect, locate, and correct transmission errors
before delivering the data to the local data communications link. This avoids requiring the
transmitter to resend information.
forward path
Signal direction from the headend to the set-top terminal.
ft-lb
foot-pound. A measure of torque defined by the application of one pound of force on a lever
at a point on the lever that is one foot from the pivot point.
G
gain
A measure of the increase in signal level, relative to a reference, in an amplifier. Usually
expressed in decibels.
GHz
Gigahertz. A unit of frequency equal to one billion cycles per second.
H
headend
The local switching or processing center for the cable network in a hybrid fiber/coax network.
Location for equipment that receives data from a satellite (or other) source and reformats that
data for input to a broadband distribution network.
HFC
hybrid fiber/coaxial. A network that uses a combination of fiber optics and coaxial cable to
transport signals from one place to another. A broadband network using standard cable
television transmission components, such as optical transmitters and receivers, coaxial cable,
amplifiers, and power supplies. The broadband output stream is transmitted as an optical
signal, over the high-speed, fiber optic transmission lines to local service areas where it is
split, converted to electrical RF signals, and distributed to set-tops over coaxial cable.