User`s manual

Table Of Contents
User’s Manual
110 Glossary
U
USB (Universal Serial Bus) USB is an external bus standard that
can support up to 127 peripheral devices in a daisy chain
configuration. USB supports plug-and-play, or hot-
plugging, so you can add a new device without turning off
the computer or adding an adapter card.
V
VGA (Video Graphics Array) A measure of the resolution of a
video signal output by a personal computer or monitor.
VGA consists of 640 vertical lines and 480 horizontal lines.
Video Loss Video signal that is not detected, or has dropped
substantially in strength.
Video Loss Detection The ability to determine and report that a video signal has
decreased substantially in strength, or is not detectable.
Z
Zoom The action of seemingly moving closer or farther away
from an object, as viewed through a camera lens.