A-3

Gate

A device or circuit which has no output until it is triggered into operation by one

 

or more enabling signals, or until an input signal exceeds a predetermined

 

threshold amplitude.

Limiter

A device or circuit whose output-signal amplitude remains at some

 

predetermined level in spite of wide variations of input-signal amplitude.

Limiting

The restriction of the maximum peak amplitude of a signal to a designated

 

level.

Muting

The act of preventing signal from being output.

Phase shift

1. A change in the displacement, as a function of time, of a periodic

 

disturbance having constant frequency. 2. The magnitude of such a change,

 

measured in fractions of a wavelength or in electrical degrees.

Polarity

See PHASE SHIFT

QuickMAP

The diagram outlining the processing components in a particular processing

 

setup.

QuickSET

The group of component settings associated with a QuickMAP.

RS-232

A standard covering serial communications between computers and other

 

equipment.

Serial cable

A cable used to connect between two serial ports. The connectors used are

 

typically DB-9, DB-25, or RJ-45.

Serial port

A communications port located either on a computer or on computer

 

controlled equipment.

Threshold

1. The initial (observable) point of an effect, e.g., threshold of hearing. 2. A

 

predetermined point, such as a minimum current or voltage, for the start of

 

operation of a circuit or device.

Window

An interval during which a circuit is gated open to permit signal sampling.

 

During this interval, a window is figuratively OPEN to the signal.

Glossary

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Telex ISP-100 manual Glossary