8M083X25 R14
APX Series P25 Interface
DVRS Installation & Programming Guide
–
PART II
January 2019
Page 74 of 153
Field Name
Range
Description
Notes
AVRA
Function
Activate
Only
Activate /
Deactivate
Toggle
If AVRA is Enabled then this field can
be set to one of the following:
‘Activate Only’
→
Once the DVR is ON
it can not be switched OFF via the
AVRA trigger. It can only be switched
OFF from the MSU CH.
‘Activate / Deactivate’
→
If the AVRA
trigger is de-asserted, the DVR
automatically switches ON or OFF.
‘Toggle’
→
The DVR is switched OFF
every second time the AVRA trigger is
asserted.
Only applicable if AVRA is
Enabled.
The
‘Activate / Deactivate’
setting is typically used when
the AVRA trigger is a Portable
charger. Removing the portable
from the charger switches the
DVR ON (System Mode).
Placing the Portable back in the
charger switches the DVR
OFF.
The
‘Toggle’
setting is typically
used when the AVRA trigger is
a car door switch. Closing the
door the first time does not
deactivate the DVR.
AVRA uses
VIP on CH
Enable /
Disable
check box
This field must be set to Enabled when
the AVRA trigger is wired up to a VIP
I/P on the Mobile Radio Control Head
or DEK.
AVRA
Activation
Tone
Enabled or
Disabled
This option enables or disables the
‘beep’ heard on the MSU speaker upon
DVRS mode change when triggered by
AVRA.
The same ‘beep’ is heard when
the DVRS mode is changed by
pressing the VRS button on the
control head.
DVR AVRA
Polarity
Active High
Active Low
Defines the DVR ON/OFF trigger
polarity when an external switch is
wired to pin 1 of the DB15 connector on
the DVR Auxiliary cable (7W083X06-
01).
Applicable when the DVR
ON/OFF activation trigger is
wired to the DVR Auxiliary
cable.
Not applicable when
the DVR ON/OFF trigger is
wired to the mobile radio CH
VIP.
Tactical DVR
Enable /
Disable
Check Box
If a DVR is to be used as a tactical
repeater (without any mobile radio
interfaced to it) this field must be set to
Enable.
A Tactical DVR model requires
a different Power cable that
allows the DVR to be powered
up by itself i.e. does not require
a powered up MSU connected
to it.
Low Battery
Alarm
OFF
– 13
Volts
When the DC supply voltage drops 0.5V
above the programmed threshold, a
‘BATTERY LOW’
warning will be
displayed and the DVR will send
warning tones to the portables over the
air. If the voltage drops below the
programmed level, the DVR is disabled
and
‘BATTERY LOW’
alternates with
‘VR ERROR’
on the MSU CH display
and the VR Transmitter is inhibited.
When the battery voltage reaches 0.8 V
above the programmed level the alarm
condition is reset and the DVR resumes
normal operation.
Typical setting is 10V.
