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A111 Wireless Card Adaptor 43
Chapter 5
Chapter 5 - Glossary
Glossary
Preamble
Allows you to set the preamble mode for a network to Long, Short, or Auto.
The default preamble mode is Long.
Radio Frequency (RF) Terms: GHz, MHz, Hz
The international unit for measuring frequency is Hertz (Hz), equivalent to the
older unit of cycles per second. One Megahertz (MHz) is one million Hertz.
One Gigahertz (GHz) is one billion Hertz. The standard US electrical power
frequency is 60 Hz, the AM broadcast radio frequency band is 0.55-1.6 MHz,
the FM broadcast radio frequency band is 88-108 MHz, and wireless 802.11
LANs operate at 2.4 GHz.
SSID (Service Set Identifier)
SSID is a group name shared by every member of a wireless network. Only
client PCs with the same SSID are allowed to establish a connection. Enabling
the Response to Broadcast SSID requests option allows the device to
broadcast its SSID in a wireless network. This allows other wireless devices
to scan and establish communication with the device. Unchecking this option
hides the SSID to prevent other wireless devices from recognizing and
connecting to the device.
Station
Any device containing IEEE 802.11 wireless medium access conformity.
Subnet Mask
A subnet mask is a set of four numbers configured like an IP address. It is
used to create IP address numbers used only within a particular network.
TCP (Transmission Control Protocol)
The standard transport level protocol that provides the full duplex, stream
service on which many application protocols depend. TCP allows a process
or one machine to send a stream of data to a process on another. Software
implementing TCP usually resides in the operating system and uses the IP
to transmit information across the network.
WAN (Wide Area Network)
A system of LANs, connected together. A network that connects computers located in
separate areas, (i.e., different buildings, cities, countries). The Internet is a wide area
network.
WECA (Wireless Ethernet Compatibility Alliance)
An industry group that certifies cross-vender interoperability and compatibility of IEEE
802.11b wireless networking products and to promote that standard for enterprise, small
business, and home environments.