Motorola XPR 4500 Installationshandbuch - Seite 36
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Glossary-2
Term
CPS
Customer
Programming
Software
D/A
DAC
default
digital
digital-to-analog
conversion
digital-to-analog
converter
Digital Private-Line
digital signal
processor
digital signal
processor code
DPL
DSP
DSP code
DTE
DTMF
dual tone multi-
frequency
FCC
March 23, 2006
See Customer Programming Software.
Software with a graphical user interface containing the feature set of an
ASTRO radio.
See digital-to-analog conversion.
See digital-to-analog converter.
A pre-defined set of parameters.
Refers to data that is stored or transmitted as a sequence of discrete
symbols from a finite set; most commonly this means binary data
represented using electronic or electromagnetic signals. See also
analog.
Conversion of a digital signal to a voltage that is proportional to the input
value. See also A/D.
A device that converts digital data into analog signals. See also ADC.
A type of digital communications that utilizes privacy call, as well as
memory channel and busy channel lock out to enhance communication
efficiency.
A microcontroller specifically designed for performing the mathematics
involved in manipulating analog information, such as sound, that has
been converted into a digital form. DSP also implies the use of a data
compression technique.
Object code executed by the Digital Signal Processor in an ASTRO
subscriber radio. The DSP is responsible for computation-intensive
tasks, such as decoding ASTRO signaling.
See Digital Private-Line. See also PL.
See digital signal processor.
See digital signal processor code.
Data terminal equipment: i.e., a computer.
See dual tone multi-frequency.
The system used by touch-tone telephones. DTMF assigns a specific
frequency, or tone, to each key so that it can easily be identified by a
microprocessor.
Federal Communications Commission.
Definition
6816812H01