GLOSSARY - TM-5-6350-275-24-P0531

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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