8A083X30 Rev.11
APX Series P25 Interface
DVRS
User’s Guide
January 2019
Page 27 of 94
Automatic DVRS Activation (AVRA)
The DVR can be activated automatically (switched from OFF or LOCAL to SYSTEM
Mode) if one of the VIP inputs on the MSU control head is wired to the desired trigger
source
– portable charger switch or door switch or custom manual switch.
When AVRA is enabled in the DVR, the user still has the option of manually changing
the DVR mode from the MSU control head or remotely.
The AVRA feature depends on the DVR programming as shown below:
AVRA Configuration
(as programmed in DVR)
System Mode
Allowed
VIP Input
Current DVR
Mode
New DVR mode
Activation / Deactivation
True
Asserted
OFF
SYSTEM
Activation / Deactivation
False
Asserted
OFF
LOCAL
Activation / Deactivation
True
Asserted
LOCAL
SYSTEM
Activation / Deactivation
False
Asserted
LOCAL
LOCAL
Activation / Deactivation
True
Asserted
SYSTEM
SYSTEM
Activation / Deactivation
True/False
De-asserted
ANY
OFF
Activation Only
True
Asserted
OFF
SYSTEM
Activation Only
False
Asserted
OFF
LOCAL
Activation Only
True
Asserted
LOCAL
SYSTEM
Activation Only
False
Asserted
LOCAL
LOCAL
Activation Only
True
Asserted
SYSTEM
SYSTEM
Activation Only
True/False
De-asserted
ANY
NO CHANGE
Toggle
True
Asserted
OFF
SYSTEM
Toggle
False
Asserted
OFF
LOCAL
Toggle
True/False
Asserted
LOCAL
OFF
Toggle
True
Asserted
SYSTEM
OFF
Toggle
True/False
De-asserted
ANY
NO CHANGE
Table 4 AVRA Functionality
