Motorola PM1200 Basic Service Manual page 128

Glossary-2
Term
Data communication
equipment
Data terminal
equipment
DCE
default
digital
digital-to-analog
conversion
digital-to-analog
converter
Digital Private-Line
digital signal
processor
digital signal
processor code
DPL
DSP
DSP code
DTMF
dual tone multi-
frequency
EEPROM
October 26, 2007
Definition for device (such as radio) data communications using the
RS232 protocol. The correct data communication wiring requires the
device's TX pins (output) to connect to the RX pins (input) and the RTS
pins (output) to connect to the CTS pins (input). It is incorrect to attach
device pins having the same name to each other.
Data terminal equipment; for example, a computer.
See Data communication equipment.
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 a subscriber
radio. The DSP is responsible for computation-intensive tasks, such as
decoding signaling.
See Digital Private-Line. See also PL.
See digital signal processor.
See digital signal processor code.
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.
See Electrically Erasable Programmable Read-Only Memory.
Definition
6880309U09-A