38
GLOSSARY
Networking
802.11b
: A wireless networking standard that supports data encryption and up to 11Mbps bandwidth.
802.11g
: A wireless networking standard that supports data encryption and up to 54Mbps bandwidth.
Ad-Hoc
:
This wireless networking mode means that two PC’s are communicating in a Peer-to-Peer network, without a router or an access
point.
Bandwidth
: A measure of the rate at which data can be sent and received through the network. This value is usually given in bits per
second (bps) or Megabits per second (Mbps).
DHCP (Dynamic Host Configuration Protocol)
:
A protocol that network devices use to obtain an IP address, subnet mask, gateway, and
DNS addresses automatically. A DHCP server can be a router, ISP server, or PC running Internet Connection Sharing software. If you are
using a DHCP-capable device in your network, you will not need to assign a static IP address to your DSM-320RD.
However, if you do not have a DHCP-capable device in your network, you will need to assign a static IP address to your DSM-320RD.
DNS (Domain Name System)
: A system used to translate computer names into IP addresses.
Ethernet
: The most commonly used wired
network technology. Standard Ethernet supports up to 10Mbps. Fast Ethernet supports up to 100Mbps.
Gateway
: This is the IP address of the device that connects you to another network such as a router. A router would be the gateway
between your local area network and the Internet.
Infrastructure
:
This wireless networking mode is used by wireless networks with a router or an access point.
IP Address (Internet Protocol Address)
: An IP address consists of four groups of digits separated by periods. Each group of digits contain
an 8-bit value as a number ranging from 0 to 255.
Each computer must have it’s own unique IP address. The IP addresses on your network
must be within the same range.
For example, if one PC or device has an IP address of 192.168.0.2, the other devices should have IP addresses that are sequential, like
192.168.0.3 and 192.168.0.4.
ISP (Internet Service Provider)
: A commercial organization that provides subscribers with access to the Internet.
Key
: Encryption keys allow you to easily change wireless encryption settings to maintain a secure network. The DNX-8620 supports 64-bit
and 128-bit keys.
Net mask
: Commonly referred to as subnet mask, this is used to determine what subnet an IP address belongs to.
RJ-45
: RJ-45 is the standard connector for Ethernet cabling. It looks like a phone cable connector, but is slightly larger. RJ-45 connectors
have 8 pins, 4 of which are used for transmitting and receiving data.
SSID (Service Set Identifier)
: The name designated for a specific wireless local area network (WLAN). The SSID can be easily changed to
connect to an existing wireless network.
Static IP
: A static IP address is configured manually on the device that will be using it. A static IP address remains the same constantly and
must be a unique address.
WEP (Wired Equivalent Privacy)
: A security protocol for wireless local area networks (WLAN) that is designed to provide the same level of
security as a wired network. WEP provides security by encrypting the data sent over the WLAN. The DNX-8620 supports 64-bit and 128-bit
encryption.
Wired
: Devices networked via Ethernet cabling.
Wireless
: Devices networked using radio frequencies instead of physical cabling.
WPA-PSK (Wi-Fi Protected Access with Pre-Shared Key)
: A security protocol for wireless local area networks that requires that the router
and DNX-8620 have the same pre-shared key in order to establish a wireless connection.
Music
AIFF
is short for
A
udio
I
nterchange
F
ile
F
ormat, an audio format that was developed by Apple Computer and is the standard audio format
for Macintosh computers. AIFF use a
.AIF
or
.IEF
extension.
M3U
is a playlist format and is the default playlist format of WinAMP and most other media player software. It allows multiple files to be
queued in a program in a specific format.
MP3
is the file extension for MPEG-1, audio layer 3. Layer 3 is one of three coding schemes (layer 1, layer 2 and layer 3) for the
compression of audio signals. Layer 3 removes the redundant and irrelevant parts of a sound signal, which the human ear does not hear. It
uses Modified Discrete Cosine Transform to implement a filter bank, increasing the frequency resolution 18 times higher
than that of layer 2.
OGG
or OGG Vorbis is an open source audio compression format. The name OGG is derived from term in a network game and Vorbis from
a character in a novel.
OGG is used for mid to high quality (8kHz-48.0kHz, 16+ bit, polyphonic) audio and music at fixed and variable bitrates
from 16 to 128 kbps/channel.
PLS
is a proprietary playlist format used for playing Shoutcast and other audio streams.
WAV
is the file extension for PC sound files and was developed by Microsoft and IBM. WAV sound files end with a .wav extension and are
compatible with Windows applications supporting audio.
WMA
is short for Windows Media Audio and is an audio format that was created by Microsoft. It is similar to MP3, although WMA can
compress at a higher rate than MP3.
39
Photo
BMP
: The standard bit-mapped graphics format used in the Windows environment. By convention, graphics files in the BMP format end with
a .BMP extension.
GIF
: Pronounced jiff or giff and stands for
g
raphics
i
nterchange
f
ormat, it is a bit-mapped graphics file format. GIF supports color and
various resolutions. It uses data compression, but it is limited to a 256-color palette.
JPG
: Short for
J
oint
P
hotographic
E
xperts
G
roup, and pronounced jay-peg. JPEG is a glossy compression technique for color images.
Although it can reduce files sizes to about 5% of their normal size, some detail is lost in the compression.
JP2: JP2 is the file extension for the new image format called JPEG2000 based on the latest image compression technology.
PNG
: Short for Portable Network Graphics, is a bit-mapped graphics format similar to GIF. In fact, PNG was approved as a standard by the
World Wide Web consortium to replace GIF because GIF uses a patented data compression scheme. In contrast, PNG is patent and
license-free.
TIFF
: Acronym for Tagged Image File Format, and is one of the most widely supported file formats for storing bit-mapped images on
personal computers. TIFF graphics can be any resolution, and they can be black and white, gray scaled, or color. Files in TIFF format often
end with a .tif extension.
Video
AVI:
Short for
A
udio
V
ideo
I
nterleave, the file format for Microsoft’s Video for Windows standard. See under Video for Windows.
DivX®:
Is a video format that is MPEG-4 compliant and widely used on the Internet for encoding video files.
MPEG
: Short for
M
oving
P
icture
E
xperts
G
roup.
MPEG generally produces better-quality video than competing formats. MPEG achieves high compression rate by storing only the changes
from one frame to another, instead of each entire frame. MPEG uses a type of lossy compression, since some data is removed. However,
the reduction in the resulting video quality is minimal. There are three major MPEG standards: MPEG-1, MPEG-2 and MPEG-4.
• The most common implementations of the MPEG-1 standard provide a video resolution of 352-by-240 at 30 frames per second (fps).
MPEG-1 is used with Video CDs (VCD) and results in video quality slightly below the quality of a VCR video.
• MPEG-2 offers higher resolution with CD-quality audio. This is sufficient for all major TV standards, including NTSC, and even HDTV.
MPEG-2 is used by DVDs. MPEG-2 compress a 2 hour video into a few gigabytes of data on a single disc.
• MPEG-4 is a video compression standard based on MPEG-1 and MPEG-2. Videos encoded with MPEG-4 technology are considerably
smaller than videos encoded with MPEG-1 or 2. MPEG-4 was standardized in October 1998.
QuickTime
: An audio and video compression technology developed by Apple® Computer and is widely supported on Macintosh® and
Windows® PC computers. The latest QuickTime® implementation is MPEG-4 compliant.
XviD
: XviD is an ISO MPEG-4 compliant video codec. It’s an open source project which is developed and maintained by many people from
all over the world.
NETWORK REFERENCE PARAMETERS
Write down below your DNX-8620 Network and IP settings for future reference:
Wired MAC Address
Wireless MAC Address
IP Address
Subnet Mask
Primary DNS
Secondary DNS
Default Gateway
WEP/WPA encryption
