Milestone XProtect Go 2014 - Manual (Page 204)

Milestone XProtect ® Go 2014 Administrator's Manual
www.milestonesys.com 204 Glossary of Terms
Domain Name System —system allowing
translation between alphabetic host names (for
example, mycomputer) or domain names (for
example,
www.mydomain.com ) and numeric
IP addresses (for example, 192.168.212.2).
Many people find alphabetic names easier to
remember than numeric IP addresses.
Driver
A program used for controlling/communicating
with a device.
DST
Daylight saving time: temporarily advancing of
clocks during the summer so that afternoons
have more daylight and mornings have less.
Dual stream
Some cameras support two independent
streams (which can be sent to the recording
server): one for live viewing and another for
playback purposes. Each stream has its own
resolution, encoding, and frame rate.
DVR
Digital video recorder —device that records
video in a digital format to a hard disk drive
embedded in the DVR itself.
E
Event Server
A server that stores and handles incoming
alarm data and events from all XProtect Go
servers. The Event Server enables powerful
monitoring and provides an instant overview of
alarms and possible technical problems within
your systems.
F
Fisheye
A type of lens that allows the creation and
viewing of 360-degree images.
FPS
Frames per second —measurement indicating
the amount of information contained in a
motion video. Each frame represents a still
image, but when frames are displayed in
succession, the illusion of motion is created.
The higher the FPS, the smoother the motion
appears. Note, however, that a high FPS may
also lead to a large file size when video is
saved.
Frame rate
A measurement indicating the amount of
information contained in motion video
—
typically measured in FPS.
FTP
File Transfer Protocol —standard for
exchanging files across the internet. FTP uses
the TCP/IP standards for data transfer and is
often used for uploading or downloading files
to and from servers.
G
GOP
Group of pictures: individual frames grouped
together, forming a video-motion sequence.
Grace period
When you install your system, configure it and
add recording servers and cameras, your
system runs on temporary licenses. These
need to be activated before a certain period
ends. This is the grace period.
GSM
Global System for Mobile communications —a
standard for mobile telephony.
GUID
Globally unique identifier —unique 128-bit
number used to identify components on a
Windows system.