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Post-record - Instructs your DVR to record for a set period of time after
an event has occurred.
Pre-record - Allows your DVR to record for a number of seconds before
an event occurs.
Resolution - The measure of detail that can be seen in an image. The
higher the number, the greater the detail available.
Saturation - This alters how much colour is displayed in the image. The
higher the saturation, the more bright and vivid colours will appear.
Server Port - Is a logical connection place and specifically, using the
Internet protocol TCP/IP, the way a client program specifies a particular
server program on a computer in a network. Your DVR will use this port
to send information through.
SMTP Port - Is the port number used by a SMTP server. This is specified
by your Internet service provider or by the email provider.
SMTP Server - It stands for Simple Mail Transfer Protocol and is the
address used to send emails.
Static - Requires all devices on the network to have their IP addresses
manually defined, as there is no device dedicated to automatically as-
signing addresses.
Static DNS - In some circumstances, your Internet service provider may
require you to use a static DNS instead of an auto DNS on your router.
Sub Stream - Is the video stream that your DVR will send to remote
devices via the network or Internet. Video quality is reduced to make it
easier to send.
Subnet Mask - Is a method that allows one large network to be broken
down into several smaller ones.
Time Server - Is a computer or server that reads the actual time from
reference clock and distributes the information to its clients on the net-
work.
Time Zone - Is a region that observes a uniform standard time for le-
gal, commercial, and social purposes. It is convenient for areas in close
communication to keep the same time.
UID - It stands for Unique Identifier and is a numeric or alphanumeric
string that is associated with a single entity within a given system. By
entering your DVR’s UID into the SwannView Link app and software, al-
lows you to communicate with your DVR without having to remember IP
addresses or port numbers.
Video Loss - Is regarded as a potential alarm event and is considered to
occur any time your DVR doesn’t receive an active video signal from any
of its video inputs.
WDR (Wide Dynamic Range) - Is technology to balance out images that
have a large dynamic range. An example of this situation would be if an
indoor camera were pointing towards a window or building entrance.
The image produced by the camera during the day would be extremely
washed out due to the high brightness of the incoming light.
Glossary (cont.)
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