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GL-1
Cisco Aironet 1240AG Series Access Point Hardware Installation Guide
OL-7293-01
G L O S S A R Y
802.11
The IEEE standard that specifies carrier sense media access control and physical 
layer specifications for 1- and 2-megabit-per-second (Mbps) wireless LANs 
operating in the 2.4-GHz band.
802.11a
The IEEE standard that specifies carrier sense media access control and physical 
layer specifications for wireless LANs operating in the 5-GHz frequency band.
802.11b
The IEEE standard that specifies carrier sense media access control and physical 
layer specifications for 5.5- and 11-Mbps wireless LANs operating in the 
2.4-GHz frequency band.
802.11g
The IEEE standard that specifies carrier sense media access control and physical 
layer specifications for 6, 9, 12, 18, 24, 36, 48, and 54 Mbps wireless LANs 
operating in the 2.4-GHz frequency band.
A
access point
A wireless LAN data transceiver that uses radio waves to connect a wired 
network with wireless stations.
ad hoc network
A wireless network composed of stations without Access Points.
antenna gain
The gain of an antenna is a measure of the antenna’s ability to direct or focus 
radio energy over a region of space. High gain antennas have a more focused 
radiation pattern in a specific direction.
associated
A station is configured properly to allow it to wirelessly communicate with an 
Access Point.
B
beacon
A wireless LAN packet that signals the availability and presence of the wireless 
device. Beacon packets are sent by access points and base stations; however, 
client radio cards send beacons when operating in computer to computer (Ad 
Hoc) mode.
BOOTP
Boot Protocol. A protocol used for the static assignment of IP addresses to 
devices on the network.