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TM 5-6350-275-24&P
GLOSSARY
TERM
EXPLANATION
Underflow
An alternative term for "Underband".
Video Display Template
A record defining how summary and alarm queue data Record is to be
displayed on the operator's screen.
Video Input
In the CCTV subsystem, any device which sends a video display to the
system (for example, a camera).
Video Output
In the CCTV subsystem, any device to receive a video display from the
system (for example, a monitor or VTR).
Video Switching Control
An item of hardware attached to the CCTV Unit subsystem. It receives video
displays from cameras and determines the output (monitor displays, tapes,
etc.) to which each should be routed. It is connected to the master station,
through which it receives operator instructions.
Volume
The BTOS term applied to a hard or floppy disk.
VTR
Video Tape Recorder. May be connected to the CCTV subsystem, to record
views from specified cameras at the operator's command or whenever a
specified alarm arises.
Watermarked Magnetic
A type of card used by the access control subsystem. It is similar to the
Unit
magnetic stripe card, but contains also a 12 digit fixed "Watermark" which is
checked whenever the card is read.
Wiegand
A type of card used by the access control subsystem which is given preset
block and card numbers. The term also refers to a reader head used to read
Wiegand cards.
Zone
A means of classifying points by location.
Zone Alarm Inhibit
A pseudo process used to disable a zone's alarms when the state of a given
point changes. Usually, this process is used to suppress the generation of
certain automatic alarms when an authorized person enters the zone legally.
Zone Alarm Point
A pseudo point associated with a zone, used to display the zone's current
condition.
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