Specifications

Glossary
Page 44 Airborne™ Product Family CLI Reference Guide 100-8005-101G
Quatech, Inc. Confidential
BSSID
Basic Service Set Identifier. A 48-bit identifier used by all stations in a BSS in
frame headers (usually the MAC address).
Clear channel
assessment
A function that determines the state of the wireless medium in an IEEE
802.11 network.
Client
Any computer connected to a network that requests services (files, print
capability) from another member of the network.
Command Line
Interface (CLI)
A method of interacting with the Airborne™ WLN Module by sending it typed
commands.
DHCP
Short for Dynamic Host Configuration Protocol, DHCP is a protocol for
assigning dynamic IP addresses to devices on a network. With dynamic
addressing, a device can have a different IP address every time it connects to
the network. DHCP also supports a mix of static and dynamic IP addresses.
Direct Sequence
Spread Spectrum
(DSSS)
Combines a data signal at the sending station with a higher data rate bit
sequence, which many refer to as a “chip sequence” (also known as
“processing gain”). A high processing gain increases the signal’s resistance
to interference. The minimum processing gain that the FCC allows is 10. Most
products operate under 20.
Disassociation
service
An IEEE 802.11 term that defines the process a station or Access Point uses
to notify that it is terminating an existing association.
Distribution service
An IEEE 802.11 station uses the distribution service to send MAC frames
across a distribution system.
EAP
Extensible Authentication Protocol, a general protocol supporting multiple
authentication methods used between the client and the authenticator. The
802.1X standard specifies encapsulation methods for transmitting EAP
messages so they can be carried over different media.
EAPOL
EAP over LAN, an 802.1X delivery mechanism used in authentication.
EAPOL encapsulates EAP messages between the supplicant and the
authenticator.
ESS
Each set of wireless devices communicating directly with each other is called
a basic service set (BSS). Several BSSs can be joined together to form one
logical WLAN segment, referred to as an extended service set (ESS). A
Service Set Identifier (SSID) is the 1-32 byte alphanumeric name given to
each ESS.
GPIO
General Purpose Input/Output refers to the digital I/O lines.
Host application
The environment within which the Module is embedded. It typically includes a
processor, which forms part of an OEM’s product and application.
Hot spot
Same as an Access Point, usually found in public areas such as coffee shops
and airports.
IEEE
Institute of Electrical and Electronic Engineers, an international organization
that develops standards for electrical technologies. The organization uses a
series of numbers, like the Dewey Decimal system in libraries, to differentiate
between the various technology families.