Rockwell Collins Inc. 8222210 Manuel D’Utilisation

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Glossary
GL-5
Cisco Aironet 1240AG Series Access Point Hardware Installation Guide
OL-7293-01
receiver sensitivity
A measurement of the weakest signal a receiver can receive and still correctly 
translate it into data.
RF
Radio frequency. A generic term for radio-based technology.
roaming
A feature of some Access Points that allows users to move through a facility 
while maintaining an unbroken connection to the LAN.
RP-TNC
A connector type unique to Cisco Aironet radios and antennas. Part 15.203 of 
the FCC rules covering spread spectrum devices limits the types of antennas that 
may be used with transmission equipment. In compliance with this rule, Cisco 
Aironet, like all other wireless LAN providers, equips its radios and antennas 
with a unique connector to prevent attachment of non-approved antennas to 
radios.
S
spread spectrum
A radio transmission technology that spreads the user information over a much 
wider bandwidth than otherwise required in order to gain benefits such as 
improved interference tolerance and unlicensed operation.
SSID
Service set identifier (also referred to as Radio Network Name). A unique 
identifier used to identify a radio network and which stations must use to be able 
to communicate with each other or to an access point. The SSID can be any 
alphanumeric entry up to a maximum of 32 characters.
T
transmit power
The power level of radio transmission.
U
UNII
Unlicensed National Information Infrastructure—regulations for UNII devices 
operating in the 5.15 to 5.35 GHz and 5.725 to 5.825 GHz frequency bands.
UNII-1
Regulations for UNII devices operating in the 5.15 to 5.25 GHz frequency band.
UNII-2
Regulations for UNII devices operating in the 5.25 to 5.35 GHz frequency band.
UNII-3
Regulations for UNII devices operating in the 5.725 to 5.825 GHz frequency 
band.
unicast packet
A single data message (packet) sent to a specific IP address.