Futurecom PDR8000 Manual page 8

TERM
P25
PDR
PL/DPL
PTT
QUANTAR
RF
RSSI
Rx
Simplex
Supplementary Data
services
TEI
Tx
V.24
Voting / Comparator
2021-11-15
DEFINITION
Project 25; a suite of standards for digital radio communications for use
by federal, state/province and local public safety agencies, enabling
communication within and between agencies during emergencies.
Portable Digital Repeater
Private Line / Digital Private Line (In band signaling controlling squelch
control in analog radio systems); also known as CTCSS (Continuous
Tone-Coded Squelch System) or DCS (Digital Coded Squelch).
Push-To-Talk
A model of Motorola Solutions base/repeater stations
Radio Frequency; carrier and information sent via Electromagnetic
energy, "over-the-air"
relative Received Signal Strength Indication
Receive
Communications on a single path/frequency, allowing only one
transmitter at a time
"Lightweight" data services that supplement voice communications, e.g.
Talker ID, Status Update, Emergency indication, etc.
Terminal Endpoint Identifier (used in Message addressing on a wireline
interface)
Transmit
A digital link better described as a physical V.24 link with HDLC (High-
level Data Link Control). Used to connect PDR8000 to other
infrastructure elements (e.g. CCGW, DIU, comparator)
Communication system elements that observe multiple received
signals, and choose the best (highest quality) to present to receiving
users.
PDR8000® Portable Digital Repeater Product Planner
Document 8K088X02 R5.0
Page 8 of 64