Panasonic WV-NW484SE, Руководство по установке

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Glossary
<A>
ActiveX controls
Software component technology developed by
Microsoft Corporation. ActiveX controls are
downloaded from web servers via the Internet or
Intranets, and provide functionality to Internet
Explorer
®
. ActiveX controls are used to display
animations on this network camera.
<B>
Bit rate
A unit for expressing how much data (bits) is
processed or sent and received during a specific
period of time. The bit rate is generally
expressed as "bps" or bits per second. The bit
rate is used to express how far video data or
audio data has been compressed or how much
data can be transmitted or received on a
communications line in one second.
Broadband router
A device for interfacing networks on ADSL,
optical fiber or other high-speed transmission
lines
<C>
Cable modem
A device for connecting to the Internet. It is
called a cable modem as it sends and receives
computer information over cable TV line. It differs
from regular modems that use a serial port in
that it is connected to a PC via an Ethernet
connection.
<D>
DDNS (Dynamic DNS)
A technology for dynamically translating DNS
server information to enable the transfer of only
differences in information between DNS servers
(See "DNS").
DHCP (Dynamic Host Configuration Protocol)
A TCP/IP protocol that enables PCs to
automatically get temporary or permanent IP
addresses that are needed for accessing a
network.
DNS (Domain Naming System)
The long lists of numbers or IP addresses that
are used in network environments are difficult to
remember, which makes them impractical. This
is why PCs are given an easy-to-follow name
(domain name) which is converted to an IP
address before they are communicated with. The
DNS mechanism provides translation between
domain names and IP addresses.
<F>
Firewall
A means of security when using an external
network such as the Internet. Generally, this is a
combination of software and hardware that
prevents a corporate network or LAN from being
accessed from the outside.
fps (Frame Per Second)
Unit for expressing the number of images that
can be displayed in one second. This is a
measure of the quality of a video signal.
Frame rate
An indicator of the number of images that can be
displayed in one second
FTP (File Transfer Protocol)
A typical protocol that is used for transferring
files over the Internet.
Full duplex
A transmission mode that supports transmission
in two directions simultaneously in bidirectional
communications. This is achieved by providing
independent lines exclusively for transmission
and reception.
<G>
Gateway
The network device that is designated as the
entrance and exit between two networks so that
PC users on one network, for example, can
access a host computer in another network such
as an in-company LAN