GLOSSARY - TM-5-6350-275-100214

TM 5-6350-275-10

GLOSSARY

TERM

DEFINITION

Analog Point

A point which is used to hold a value which has been measured, rather than being set to

one of two or four states. The analog point is generally used to monitor plant

performance rather than in specific security applications; for example, where the rate at

which water is flowing through a pipeline needs to be recorded. In such a case, a

transducer can be used to measure the flow rate and convert it to an electrical current.

The current is then recorded, as a number, by the RADC and sent to the PMC. It is then

converted into the required engineering value and stored in an analog point record.

Archive Rate

The rate at which timed archived data is transferred to disk.

Archive Type

A value from an analog point which has been calculated and stored on disk. Up to three

values can be taken from each point: minimum, maximum, and average.

Archived Data

Data which has been acquired from the RADC network and placed on disk. Two

different kinds of archived data can be produced by the system: "Timed Archived Data"

and "Event Archived Data".

Attributes

Parameters associated with a station or point which indicate its operational condition (for

example disabled, alarm inhibited, etc.) or the style in which text appears in displays (for

example, bold, blinking, highlighted, etc).

Audible Alarm

The tone emitted by a workstation signaling the arrival of an alarm or indicating that the

operator has entered an invalid command which the system is unable to act on.

Audible Alarm Mask

The configurable ability to prevent acknowledged alarms from generating an alarm tone

when they reach the top of queue position.

Auto-Hold

A step in a monitor sequence which has a display time of 0 seconds. This indicates that

the display is held until the operator indicates that the sequence is to proceed to the next

step.

Auto-Poll

A poller used in a multiple DAU configuration to enable a DAU program to recognize,

whenever appropriate, that it is controlling data acquisition.

Auxiliary Display

A display which appears in the display frame for a temporary period and can only be

recalled by repeating the appropriate system command.

Baud

The rate of data transmission, defined as a number of signal elements per second (bps).

Bearer

The medium used to transfer data between the PMC and a RADC. For example, cables

or telephone wire.

Binary Point

A status point which can return only two conditions, for example on/off (see also Ternary

Point).

BTOS

The operating system supplied by Unisys. Burroughs Technical Operating System

(BTOS), a message based, multitasking Disk Operating System.

Buffer

A part of the internal memory used as a temporary storage area.

Camera

In ICIDS, a camera attached to a CCTV subsystem.

Glossary-2