Справочник Пользователя для SmartAnt Telecom Co. Ltd. SAA04050620
Wireless LAN USB Adapter
20
Signal Strength - The signal level indicates the strength of the signal as received at the
wireless network interface.
wireless network interface.
S N M P ( S i m p l e Network Management Protocol) - A standard network protocol that can be
used to manage networks locally, or worldwide via the Internet.
used to manage networks locally, or worldwide via the Internet.
S p r e a d S p e c t r u m - Spread Spectrum technology is a wideband radio frequency technique
developed by the military for use in reliable, secure, mission-critical communication systems.
It is designed to trade off bandwidth efficiency for reliability, integrity, and security. In other
words, more bandwidth is consumed than in the case of narrowband transmission, but the
trade off produces a signal that is, in effect, louder and thus easier to detect, provided that
the receiver knows the parameters of the spread-spectrum signal being broadcast. If a
receiver is not tuned to the right frequency, a spread – spectrum signal looks like
background noise. There are two main alternatives, Direct Sequence Spread Spectrum
(DSSS) and Frequency Hopping Spread Spectrum (FHSS).
developed by the military for use in reliable, secure, mission-critical communication systems.
It is designed to trade off bandwidth efficiency for reliability, integrity, and security. In other
words, more bandwidth is consumed than in the case of narrowband transmission, but the
trade off produces a signal that is, in effect, louder and thus easier to detect, provided that
the receiver knows the parameters of the spread-spectrum signal being broadcast. If a
receiver is not tuned to the right frequency, a spread – spectrum signal looks like
background noise. There are two main alternatives, Direct Sequence Spread Spectrum
(DSSS) and Frequency Hopping Spread Spectrum (FHSS).
SSID (Service Set Identifier) - Is the unique name shared among all points in a wireless
network. The SSID must be identical for all points in the network. It is case sensitive and
must not exceed 32 characters.
network. The SSID must be identical for all points in the network. It is case sensitive and
must not exceed 32 characters.
Static IP Address - A permanent IP address that is assigned to a node in an IP or a TCP/IP
network.
network.
Subnet - A subnet is a logical sub-division of a Local Area Network that has been divided
by means of routers or gateways. A subnet may include multiple LAN segments. Each
s ubnet is identified by the Subnet Mask.
by means of routers or gateways. A subnet may include multiple LAN segments. Each
s ubnet is identified by the Subnet Mask.
T
TCP/IP (Transmission Control Protocol/Internet Protocol) - The basic communication
language or protocol of the Internet. It can also be used as a communications protocol in a
private network (either an intranet or an extranet). When you are set up with direct a c c e s s
to the Internet, your computer is provided with a copy of the TCP/IP program just as every
other computer that you may send messages to or get information from also has a copy of
TCP/IP.
language or protocol of the Internet. It can also be used as a communications protocol in a
private network (either an intranet or an extranet). When you are set up with direct a c c e s s
to the Internet, your computer is provided with a copy of the TCP/IP program just as every
other computer that you may send messages to or get information from also has a copy of
TCP/IP.
W
WEP (Wired Equivalent Privacy) - A data privacy mechanism based on a 40 bit shared key
algorithm, as described in the IEEE 802 .11 standard. The optional cryptographic
confidentiality algorithm specified by IEEE 802.11 used to provide data confidentiality that is
subjectively equivalent to the confidentiality of a wired LAN medium that does not employ
cryptographic techniques to enhance privacy.
algorithm, as described in the IEEE 802 .11 standard. The optional cryptographic
confidentiality algorithm specified by IEEE 802.11 used to provide data confidentiality that is
subjectively equivalent to the confidentiality of a wired LAN medium that does not employ
cryptographic techniques to enhance privacy.
Windows workgroup - A Windows workgroup can consist of either wireless or wired
network connections or a combination of the two. Usually a Windows workgroup consists of
members who are related because of a shared function, e.g. members of the same
department. For a Windows workgroup it is not relevant where the workgroup participants
are located, since the members of a Windows workgroup are identified by their workgroup
name only.
network connections or a combination of the two. Usually a Windows workgroup consists of
members who are related because of a shared function, e.g. members of the same
department. For a Windows workgroup it is not relevant where the workgroup participants
are located, since the members of a Windows workgroup are identified by their workgroup
name only.