Quadrox QGuard User Manual - Manual (Page 171)

QGuard User Manual 171
Version 4.9 Series
TCP Server Port – is used to allow external users to receive alarms, control PTZ
cameras, send commands, etc.
U
UDP Streaming Ports – are used to transmit video streams. QGuard choose
necessary amount of ports from range 4096-4224 and transmit video streams
by means of them.
UDP Datagram – is the packet (datagram), on which video stream is divided for
proper transmission through the network.
V
VHS (Video Home System) – the standard home videocassette format, which has 1/2"
videotape and up to 160 minutes playing time.
Video card – a circuit board fitted to a computer, containing the necessary video
memory and other electronics to provide a bitmap display. Adaptors vary in
the resolution (number of pixels) and number of colors they can display, and in
the refresh rate they support. The monitor attached to the adaptor also limits
these parameters. A number of such display standards, e.g. SVGA, have
become common and different software requires or supports different sets.
Video memory –an amount of the video card memory.
Virtual Patrol – this function allows camera inspecting of the different sites at the
given times. It allows active 24 hour monitoring of a big area with only one
camera.
W
Window – a portion of the screen that can display its own application or document.
Often used to mean a Microsoft Windows window.
Windows XP – an operating system based on the windows effect. Created by
Microsoft Corporation.