ProSoft Technology RadioLinx RLXIB-IHW-66 User Manual page 90

RLXIB-IHW-66 ♦ 802.11a, b, g
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Half-Duplex
A communications circuit or system designed to transmit and receive data, but
not both simultaneously. CB or walkie-talkie radios are an example of a half-
duplex communication system. Either parties on a radio conversation may talk or
listen; but both cannot talk at the same time without corrupting each other's
signal. If one operator is "talking", the other must be "listening" to have
successful communication.
Hz
Hertz. The international unit for measuring frequency equivalent to the older unit
of cycles per second. One megahertz (MHz) is one million hertz. One gigabit
(GHz) is one billion hertz. The standard US electrical power frequency is 60 Hz.
802.11a devices operate in the GHz band; 802.11b and g devices operate in the
2.4 GHz band.
IEEE
Institute of Electrical and Electronics Engineers, Inc. IEEE is a professional
organization with members in over 175 countries and is an authority in technical
areas such as computer engineering and telecommunications. IEEE developed
the 802.11 specifications.
IP Address
An identifier for a computer or device in a TCP/IP network. Networks using the
TCP/IP Protocol route messages based on the IP address of the destination. The
format of an IP address is a 32-bit numeric address written as four numbers
separated by periods. Each number can be 0 to 255. For example,
192.168.0.100 could be an IP address.
Key
A set of information (often 40 to as much as 256 bits) that is used as a seed to an
encryption algorithm to encrypt (scramble) data. Ideally, the key must also be
known by the receiver to decrypt the data.
LAN
A system of connecting PCs and other devices within the same physical
proximity for sharing resources such as internet connections, printers, files, and
drives. When Wi-Fi is used to connect the devices, the system is known as a
wireless LAN or WLAN.
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Glossary of Terms
User Manual
ProSoft Technology, Inc.
May 18, 2009