Rev. 1 - YML669
www.netcomm.com.au
NP5430 11g Wireless PC Card User Guide
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Internet connection at a particular location. It's especially useful
in education and other environments where users change
frequently. Using very short leases, DHCP can dynamically
reconfigure networks in which there are more computers than
there are available IP addresses.
DHCP supports static addresses for computers containing Web
servers that need a permanent IP address. DNS - The domain
name system (DNS) is the way that Internet domain name are
located and translated into Internet Protocol (IP) addresses. A
domain name is a meaningful and easy-to-remember "handle" for
an Internet address.
D S S S
(Direct-Sequence Spread Spectrum) - DSSS generates a
redundant bit pattern for all transmitted data. This bit pattern is
called a chip (or chipping code). Even if one or more bits in the
chip are damaged during transmission, statistical techniques
embedded in the receiver can recover the original data without the
need for retransmission. To an unintended receiver, DSSS
appears as low power wideband noise and is rejected (ignored)
by most narrowband receivers. However, to an intended receiver
(i.e. another wireless LAN endpoint), the DSSS signal is
recognized as the only valid signal, and interference is inherently
rejected (ignored).
Dynamic IP Address
An IP address that is automatically assigned to a client station in
a TCP/IP network, typically by a DHCP server. Network
devices that serve multiple users, such as servers and printers,
are usually assigned static IP addresses.
ESS
(Extended Service Set) - A set of more than two or more BSSs
(multiple access points) forming a single network.
Firmware
Code that is written onto read-only memory (ROM) or
programmable read-only memory (PROM). Once firmware has
been written onto the ROM or PROM, it is retained even when
the device is turned off.
IEEE
The Institute of Electrical and Electronics Engineers. The IEEE
describes itself as "the world's largest technical professional
society-promoting the development and application of
electrotechnology and allied sciences for the benefit of humanity,
the advancement of the profession, and the wellbeing of our
members." The IEEE fosters the development of standards that
often become national and international standards. The
organization publishes a number of journals, has many local
chapters, and several large societies in special areas, such as the
IEEE Computer Society.
