User manual

Terminology
51
MPEG ( Moving Pictures Experts Group)
MPEG is a standard for compressing
video. MPEG-1 can provide resolution of
352x240 at 30 frames/second (fps) with
24-bit color and CD-quality sound.
MPEG-2 can provide resolution of 704x480.
MPEG uses the same intraframe
coding as JPEG for individual frames, but also
uses interframe coding which can
help to further compress the video data, thereby reducing the overall size of the
video.
NAT (Network Address Translation)
This process allows all of the computers on your home network to use one
IP address. The NAT capability of the Barricade™,
allows you to access the
Internet from any computer on your home network without having to purchase
more IP addresses from your ISP. Network Address
Translation can be used to
give multiple users access to the Internet with a single user account, or to map the
local address for an IP server (such as Web or FTP)
to a public address. This
secures your network from direct attack by hackers, and
provides more flexible
management by allowing you to change internal IP addresses
without affecting
outside access to your network. NAT must be
enabled to provide multi-user
access to the Internet or to use the Virtual Server function.
NTSC
( National TV Standards Committee)
NTSC is a color TV standard that broadcasts 30 interlaced frames per second
at 525 lines of resolution. It is used in North America, Japan, Korea and several
other countries around the world.
PBCC (Packet Binary Convulational Code™)
PBCC is a modulation technique develope
d by Texas Instruments Inc. (TI) that
offers data rates of up to 22Mbit/s
and is fully backward compatible with existing
802.11b wireless networks.
PAL
( Phase Alternating Line)
PAL is a color TV standard that broadcasts 25 interlaced frames per second
at 625 lines of resolution. It is used throughout Europe and China and some
countries in African, South America and the Middle East.
PCI (Peripheral Component Interconnect)
PCI is a local bus for PCs from Intel that provides a high-speed data path
between the CPU and up to 10 peripherals (video, disk, network, etc.). The PCI
bus runs at 33MHz, supports 32-bit and 64-bit data paths, and bus mastering.