Glossary – Buffalo Technology WZR-RS-G54 User Manual
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Driver: Software that interfaces a computer 
with a specifi c hardware device. 
DSSS (Direct Sequence Spread Spectrum): 
Method of spreading a wireless signal into wide 
frequency bandwidth. 
DTE (Data Terminal Equipment): Device that 
con10BaseT or 100BaseTx: 802.3 based 
Ethernet network that uses UTP (Unshielded 
twisted pair) cable and a star topology. 10 is 10 
Mbps and 100 is 100 Mbps. 
Dynamic IP Address:  An IP address that is 
automatically assigned to a client station in a 
TCP/IP network, typically by a DHCP server. 
ESS (Extended Service Set): A set of two 
or more BSSs that form a single sub-network. 
SSID is user identifi cation used in the ESS LAN 
confi guration. 
Ethernet: The most widely used architecture 
for Local Area Networks (LANs). It is a shared-
media network architecture. The IEEE 802.3 
standard details its functionality. 
Ethernet cable: A wire similar to telephone 
cable that carries signals between Ethernet 
devices. 
File and Print Sharing: A Microsoft application 
that allows computers on a network to share 
fi les and printers. 
Firmware: Programming inserted into pro-
grammable read-only memory, thus becoming a 
permanent part of a computing device. 
Frame: A fi xed block of data, transmitted as a 
single entity. Also referred to as packet. 
Full-Duplex: To transmit on the same channel 
in both directions simultaneously. 
Half-duplex: To transmit on the same channel 
in both directions, one direction at a time. 
Hub:  A device which allows connection of com-
puters and other devices to form a LAN. 
IEEE (Institute of Electrical and Electronics 
Engineers): The professional organization 
which promotes development of electronics 
technology. 
Glossary
