Special Terms And - Motorola SABER Handie-Talkie H42QXN7139CN Maintenance Manual

SPECIAL TERMS
AND ABBREVIATIONS -
The
construction, technology, and circuits
in
the
SABER
radio require the
use
of the following special terms
and abbreviations.
Term:
Description:
A/D
Analog-to-Digital
Alert Tones Audible annunciators
of radio status
COPE
Control Of Peripheral Electronics microcomputer (U502)
CORE
Control Of
Radio Electronics
microcomputer (U400)
DPL
Digital Private Line (digitally coded squelch)
DTMF
Dual-Tone, Multi-Frequency (phone interconnect signalling)
DVP™
Digital
Voice
Protection
Logic
1
A
voltage level
of approximately
5Vdc
Logic
0
A
voltage level of approximately
0Vdc
PA Power Amplifier
PL
Private-Line (tone coded squelch)
PLL
Phase-Locked
Loop
RX
Receive
SINAD
Signal-to-Noise and Distortion ratio
SCl
Serial Communications
Interface
subsystem
(part of CORE,
U400)
SPI
Serial Peripheral
Interface subsystem (part of
CORE,
U400)
TX
Transmit
vco
Voltage-Controlled Oscillator
xviii
SPECIAL TERMS
AND ABBREVIATIONS -
The
construction, technology, and circuits
in
the
SABER
radio require the
use
of the following special terms
and abbreviations.
Term:
Description:
A/D
Analog-to-Digital
Alert Tones Audible annunciators
of radio status
COPE
Control Of Peripheral Electronics microcomputer (U502)
CORE
Control Of
Radio Electronics
microcomputer (U400)
DPL
Digital Private Line (digitally coded squelch)
DTMF
Dual-Tone, Multi-Frequency (phone interconnect signalling)
DVP™
Digital
Voice
Protection
Logic
1
A
voltage level
of approximately
5Vdc
Logic
0
A
voltage level of approximately
0Vdc
PA Power Amplifier
PL
Private-Line (tone coded squelch)
PLL
Phase-Locked
Loop
RX
Receive
SINAD
Signal-to-Noise and Distortion ratio
SCl
Serial Communications
Interface
subsystem
(part of CORE,
U400)
SPI
Serial Peripheral
Interface subsystem (part of
CORE,
U400)
TX
Transmit
vco
Voltage-Controlled Oscillator
xviii