User Manual
35
A
A
p
p
p
p
e
e
n
n
d
d
i
i
x
x
A
A
:
:
G
G
l
l
o
o
s
s
s
s
a
a
r
r
y
y
10BaseT
An IEEE standard (802.3) for operating 10 Mbps Ethernet networks (LANs) with twisted pair cabling and a wiring
hub.
Access Point
An internetworking device that seamlessly connects wired and wireless networks. Access Points combined with a
distributed system support the creation of multiple radio cells that enable roaming throughout a facility.
Ad Hoc
A network composed solely of Wireless CF Cards within mutual communication range of each other (no Access
Point connected).
BSS
Basic Service Set. A set of Wireless CF Cards controlled by a single coordination function.
Channel
A medium used to pass protocol data units that can be used simultaneously in the same volume of space by other
channels of the same physical layer, with an acceptably low frame error ratio due to mutual interference.
ESS
Extended Service Set. A set of one or more interconnected Basic Service Sets (BSSs) and integrated Local Area
Networks (LANs) can be configured as an Extended Service Set.
Ethernet
The most widely used medium access method, which is defined by the IEEE 802.3 standard. Ethernet is normally a
shared media LAN; i.e., all the devices on the network segment share total bandwidth. Ethernet networks operate at
10Mbps using CSMA/CD to run over 10BaseT cables.
Gateway
A network component that acts as an entrance to another network.
IEEE 802.11
The IEEE 802.xx is a set of specifications for LANs from the Institute of Electrical and Electronic Engineers (IEEE).
Most wired networks conform to 802.3, the specification for CSMA/CD-based Ethernet networks or 802.5, the
specification for token ring networks. 802.11 defines the standard for wireless LANs encompassing three
incompatible (non-interoperable) technologies: Frequency Hopping Spread Spectrum (FHSS), Direct Sequence
Spread Spectrum (DSSS), and Infrared. IEEE standards ensure interoperability between systems of the same type.
Infrastructure
A wireless network centered about an Access Point. In this environment, the Access Point not only provides
communication with the wired network but also mediates wireless network traffic in the immediate neighborhood.
IP