Motorola APX 5000 Service Manual page 307

Glossary
Term
digital
digital-to-analog
conversion
digital-to-analog
converter
Digital Private Line
digital signal
processor
digital signal
processor code
dispatcher
DPL
DSP
DSP code
dynamic regrouping
EEPOT
EEPROM
Electrically Erasable
Programmable
Read-Only Memory
Failsoft
FCC
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.
An individual who has radio-system management duties and
responsibilities.
See Digital Private Line. See also PL.
See digital signal processor.
See digital signal processor code.
A feature that allows the dispatcher to temporarily reassign selected
radios to a single special channel so they can communicate with each
other.
Electrically Programmable Digital Potentiometer.
See Electrically Erasable Programmable Read-Only Memory.
A special type of PROM that can be erased by exposing it to an
electrical charge. An EEPROM retains its contents even when the
power is turned off.
A backup system that allows communication in a non-trunked,
conventional mode if the trunked system fails.
Federal Communications Commission.
Definition
Sec 3: Glossary-3