Glossary
GL-6
Cisco Wireless Router and HWIC Configuration Guide
OL-6415-03
Q
quadruple phase
shift keying
A modulation technique used by IEEE 802.11b-compliant wireless LANs for
transmission at 2 Mbps.
R
range
A linear measure of the distance that a transmitter can send a signal.
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.
RSN
Robust Security Network
RSNIE
RSN Information Element
RP-TNC
A connector type unique to Cisco 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, 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
slot time
The amount of time a device waits after a collision before retransmitting a
packet. Short slot times decrease the backoff time, which increases throughput.
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.
SSN
Simple Security Network
SSN-PSK
Authenticated Key Management using pre-shared Key over 802.1X. SSN is
enabled and there exists a per-configured pre-shared key. In this mode, the
station use 802.1X for key management.
