Appendix - Redline AN-30 System User Manual

1 1 . A p p e n d i x
1 1 . A p p e n d i x
11.1. Appendix 1 - Glossary Of Terms
AN-30
Antenna
Antenna Gain
ARQ
Beamwidth
BFW
Bps (Bits Per Second)
BPSK
Channel
dB
dBi
dBm
DHCP
Directional Antenna
Encryption
Ethernet
FD
FWA
Gain
Gateway
GHz
GUI
Hertz (Hz)
IF
IP (Internet Protocol)
Isotropic
IXC (Inter-exchange Carrier)
LAN (Local Area Network)
LEC (Local Exchange Carriers)
LED
LOS
MAC (Media Access Control)
Redline Communications
Redline Communications' Access Node-50 Broadband Fixed
Wireless (BFW) system.
A device for transmitting and/or receiving a radio frequency (RF).
Antennas vary in design and frequencies supported.
The measure of antenna performance relative to a theoretical antenna
called an isotropic antenna.
Automatic Repeat Request. This is the protocol used over the air for
error correction.
The angle of signal coverage provided by an antenna.
Broadband Fixed Wireless
A unit of measurement for the rate at which data is transmitted.
Binary Phase Shift Keying.
A communications path wide enough to permit a single RF
transmission.
A ratio expressed in decibels.
A ratio, measured in decibels, of the effective gain of an antenna
compared to an isotropic antenna.
Decibels above a milliwatt
Dynamic Host Configuration Protocol. A DHCP server will
automatically issue IP addresses within a specified range to devices
on a network.
An antenna that concentrates transmission power into one direction.
For the purposes of privacy, the transformation of data into an
unreadable format until reformatted with a decryption key.
A LAN architecture using a bus or star topology
Full Duplex. Refers to the transmission of data in two directions
simultaneously (i.e. a telephone)
Fixed Wireless Access
The ratio of the output amplitude of a signal to the input amplitude of
a signal. Typically expressed in decibels (dB).
A network point that acts as an entrance to another network.
Gigahertz. 1,000,000,000 Hz, or 1,000 MHz
Graphical User Interface
The international unit for measuring frequency, equivalent to the
number of cycles per second. One megahertz (MHz) is one million
Hertz. One gigahertz (GHz) is one billion Hertz.
Intermediate Frequency.
See TCP/IP.
A theoretic construct of an antenna that radiates its signal 360 degrees
both vertically and horizontally—a perfect sphere. Generally used as
a reference.
A long-distance phone company.
A data communications network, typically within a building or
campus linking computers, printers and other devices together.
The traditional local wired phone company.
Light Emitting Diode
Line Of Sight. A clear direct path between two antennas, with no
obstructions within the first Fresnel zone.
A unique number assigned to a network device. It corresponds to the
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AN-30 System User Manual