DVRS Modes of Operation
When a "DVRS Enabled" TG / Channel is selected on the APX MSU control head, the
DVR can be switched to one of the following modes – OFF, LOCAL or SYSTEM.
OFF Mode
ACTIVITY
Control Head Display
DVRS Button Press
MSU Receiving from System
MSU User PTTs the MSU
Microphone
PSU Activity on DVR channel
Table 11 OFF Mode DVRS Basic Operation
SYSTEM Mode
ACTIVITY
Control Head Display
DVRS Active Tones
DVRS Button Press
MSU User PTTs the MSU
Microphone
MSU Receiving from System
PSU Activity on DVR channel
Table 12 SYSTEM Mode DVRS Basic Operation
January 2019
OFF MODE ACTION
VR OFF <DVR CH Name>
Short high-pitched tone.
DVR Control Mode is accessible.
DVR does not repeat audio received by
MSU.
MSU Speaker Audio present.
MSU Keys up. DVR does not key up.
DVRS Transmit Function Disabled i.e.
No DVR repeat. No Speaker Audio.
SYSTEM MODE ACTION
VR SYS <DVR CH Name>
If programmed, a short high-pitched 'DVR
Enabled' tone is repeated every few
seconds (5-255 sec. programmable) in the
MSU Speaker regardless of the Primary /
Secondary Status of the DVR.
Short high-pitched tone.
DVR Control Mode is accessible.
Both DVR and MSU key up.
DVR may be programmed not to key up!
DVR repeats audio received by MSU to
PSU
Users
on
the
Channel. Speaker Audio is present.
PSU audio is repeated locally by DVRS as
well as by the MSU to the System. MSU
Speaker Audio is present if In-Car Monitor
is enabled in the MSU.
8A083X30 Rev.11
APX Series P25 Interface
DVRS User's Guide
designated
DVR
Page 42 of 94
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