8A083X30 Rev.11
APX Series P25 Interface
DVRS
User’s Guide
January 2019
Page 40 of 94
•
Powering down a DVRS
•
Detected presence or absence of another Primary
•
User enforced Permanent Primary status
PRIMARY
STANDBY
PERMANENT
PRIMARY
DEFINITION
An active DVR which
has won the voting
selection and has
been selected to
repeat Local PSU or
System
communications.
An active DVR which
was voted off and
forced to stay on
stand-by, without
repeating for as long
as the elected Primary
DVR is servicing the
communication needs
in the area.
An active DVR, which
is forced by the user or
programmed to act as
a Primary. The
Permanent Primary
forces all other DVRs
in the area to assume
Secondary status. If
more than one
Permanent Primary is
available in the same
area, it will go through
higher level voting to
elect one winning
Permanent Primary.
SELECTION
Transparent to the
user selection via
DVRS voting
algorithm.
Transparent to the
user selection via
DVRS voting
algorithm.
Press the
DVRS
button to enter the
‘DVR Control Menu’,
then press the
PM
button to toggle
Permanent Primary
Status ON and OFF if
such selection is
enabled in the DVRS
personality.
DISPLAY
Steady
V R
Flashing
V R
Steady
V R
Table 10 Primary DVR Definitions
NOTE:
As an option, an external light may be placed on the top of the vehicle, which can be
used to indicate which DVRS is the currently selected Primary.
