Glossary (Cont.) - Swann DVR4-4550 Instruction Manual

Glossary (cont.)

DNS Server - Is a standard technology for managing public names of
web sites and other Internet domains. DNS technology allows you to
type names into your web browser which your computer will automati-
cally find the address on the Internet.
DST (Daylight Saving Time)
moved one hour ahead.
Format - Is a command that prepares a storage device such as a USB
flash drive or hard drive to hold data.
Frame Rate - The measurement of the rate that pictures are displayed
to create a video feed. This is typically done as frames per second.
Gateway - Is a router that routes traffic from a device on your home
network to the outside network that is providing access to the Internet.
HDD (Hard Disk Drive)
- Is a storage device located inside your DVR. It
is where all data is kept, saved and stored.
HTTP Port
- It stands for Hypertext Transfer Protocol and is the port that
is used to log into your DVR.
Hue
- Is somewhat synonymous to what is usually referred to as col-
ours. By altering the hue, you can change the colour mix of the image.
IP Address
- The address of a device attached to the network. Each de-
vice on the network must use a unique address. IP addresses range
from 0.0.0.0 to 255.255.255.255.
IP Channel - Is a list of cameras that are either directly connected to
your DVR, or connected directly to your network. This will typically dis-
play the camera's name, IP address, channel number, status, user name
and password.
Live View - Is the default display mode for your DVR. Each camera con-
nected will be displayed on-screen.
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- Is the period of the year when clocks are
MAC Address - Is a unique identifier for network devices. Can also be
used as a super password if you have forgotten your current password.
Main Stream - Is the video feed that your DVR will display and record.
Mask
- Is used to obscure part of your image for privacy. It can also be
used to minimise false triggers when your DVR detects motion. Any area
obscured won't be shown live or recorded.
Menu - Is where you control the various actions and options that are
available on your DVR.
Motion Detection
- Is the main method used by your DVR to detect mo-
tion and is an essential part of your security system. It does this by com-
paring one frame of video with the next. A certain amount of difference
between these two frames is interpreted as motion.
NTP (Network Time Protocol)
with a time based server.
NTSC
- Is the video system used in North America, Canada and some
Latin American countries. In NTSC, 30 frames are transmitted each
second.
Optical Zoom - Is a true zoom feature. It allows you to zoom in (or out)
on an object to get a closer view by using the camera's lens.
OSD (On-screen Display) - Display information from the camera such
as time, date and camera name on-screen.
Pack Duration - Instructs your DVR to split recordings into discrete
units. Each unit can be a maximum of 60 minutes in length. Your DVR
will play these as one continual video.
PAL
- Is the video system used in the United Kingdom, Australia and
most European countries. In PAL, 25 frames are transmitted each sec-
ond.
- Is used to synchronize your DVR's clock
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