Motorola APX 4000 User Manual page 164

Channel
Control Channel
Conventional
Conventional
Scan List
COTS
Digital Private
Line (DPL)
160
English
operations of the trunked
repeaters.
A group of characteristics such
as transmit/ receive frequency
pairs, radio parameters, and
encryption encoding.
In a trunking system, one of the
channels that is used to provide
a continuous, twoway/ data
communications path between
the central controller and all
radios on the system.
Typically refers to radio-to-radio
communications, sometimes
through a repeater (see
Trunking).
A scan list that includes only
conventional channels.
Commercial Off-The-Shelf
A type of coded squelch using
data bursts. Similar to PL
except a digital code is used
instead of a tone.
Digital Signal An RF signal that has a pulsed,
or discrete, nature, rather than
a continuous nature.
Dispatcher An individual who has radio
system management duties.
DSP Digital Signal Processing
Dynamic A feature that allows the
Regrouping
dispatcher to temporarily
reassign selected radios to a
single special channel so they
can communicate with each
other.
DSR Dynamic System Resilience
EID Encrypted Integrated Data
ESN Electrical Serial Number
Failsoft A feature that allows
communications to take place
even though the central
controller has failed. Each
trunked repeater in the system
transmits a data word informing
every radio that the system has
gone into failsoft.