GLOSSARY - TM-5-6350-275-24-P0525

TM 5-6350-275-24&P

GLOSSARY

TERM

EXPLANATION

Object

A complete or partial drawing, consisting of one or more elements, such as

text, lines, rectangles, circles. or triangles, which can be configured to move

or change color to indicate the value and/or state of an item of monitored

equipment. Once created, an object can be copied as often as required into

any number of system mimics. It can, therefore, represent different points in

the same mimic, or different points in different mimics.

Off Normal

The condition where a point is not considered to be in its normal state.

Old Version Record

The master copy of the engineering table records which maintains the "last

saved" version of the working copy and can be reloaded to restore the

database to its original state, if changes have been introduced which

produced unforeseen effects.

Operating Aperture

The time that elapses between the system issuing a control to an item of

equipment and the expected status change being detected. If the specified

time elapses, the item of equipment is considered to have failed.

Operator Mode

The mode of operation a workstation is said to be in when an operator has

logged in.

Operator Profile Record

A record within the reconfiguration program used to tailor the system to suit

the needs of an individual operator.

Operator Utilities

The program downloaded to the workstation when an operator logs in,

Program

providing facilities for the monitoring and control of remote equipment.

Operator Environment

The mode of operation in which a workstation is said to be when an

operator has logged in to the ICIDS system.

Operator Workstation

A workstation which is being used to run the operator utilities program.

Optical Fiber

A medium for the transmission of data using light signals.

Overband

The condition where the value of an analog point exceeds its normal

maximum value, indicating that a fault has occurred in the telemetry system.

The fault is usually connected with a transducer.

Overflow

An alternative term for "Overband".

Parity Check

The technique where the number of set (that is, "1 ") bits in a character code

is used to determine the validity of data. There are two parity check

methods: odd parity and even parity. In odd parity each character code is

represented by an odd number of "1" bits and any code found to contain an

even number is considered invalid. In even parity the number of "1" bits

must be even and codes containing an odd number are rejected. Whenever

it is necessary, it is possible for additional bits to be added to the code by

the transmitting device to ensure the number of "1" bits conforms to the type

of parity check chosen.

Glossary-7