Specifications

Glossary-3
Glossary
encryption algorithm
A formula used to turn data into a secret code. Each algorithm uses a string of bits known as
a "key" to perform the calculations. The larger the key (the more bits in the key), the greater
the number of potential patterns can be created, thus making it harder to break the code and
descramble the contents. RoamAbout uses the RC4 Algorithm for 40 and 128 bit WEP
encryption.
endpoint bridge mode
An AP mode that allows two APs to communicate, effectively connecting two wired LANs
through a wireless link.
Ethernet adapter
The Ethernet adapter is used on wired devices (for example, desktop computers and
printers) to make them wireless devices.
ETSI
European Telecommunications Standards Institute (ETSI) regulations. A non-profit
membership organization dedicated to standardizing telecommunications, including radio
frequencies, throughout Europe. It promotes worldwide standards, and its efforts are
coordinated with the ITU.
FCC
Federal Communications Commission (FCC) and Canada (Industry Canada (IC)). The U.S.
government agency that regulates interstate and international communications including
wire, cable, radio, TV and satellite.
frequency
A measure of the energy, as one or more waves per second, in an electrical or light-wave
information signal. A signal's frequency is stated in either cycles-per-second or Hertz (Hz).
gain (dBi)
The amount of increase that an amplifier provides on the output side of the circuit. Increasing
gain decreases the angle or beamwidth.
GHz
GigaHertz. One billion cycles per second. High-speed radio frequency applications transmit
in the gigahertz range.