8A083X30 Rev.11
APX Series P25 Interface
DVRS
User’s Guide
January 2019
Page 50 of 94
PSU Affiliation
When a Local PSU user selects a DVR Enabled TG, the Local PSU is affiliated via an
active Primary DVRS if:
•
The DVR is programmed for Digital (or Mixed) mode on the selected DVR
channel.
•
The same Digital DVR channel is selected on both the PSU and the DVRS.
Generic P25 PSU is registered during the first Group Call made after switching to the
DVR enabled Mode. ‘DVRS Enabled’ P25 PSU starts automatic affiliation process upon
selection of DVR Enabled Mode (no PTT required to start affiliation process).
The maximum number of PSUs that can get affiliated with one DVRS is 256.
Group Calls
Inbound and Outbound Group Calls are supported by the DVRS.
MSU Priorities
MSU Proxy Request Priority Level
Proxy Request
LOW
Idle (incl. in Emergency Call, not receiving
audio)
Group Voice Receive (all group call types,
including hang time while on trunked voice
channel)
Packet Data
MEDIUM
Transmitting
Signaling features (call alert, status etc.)
Individual Calls (unit to unit and Phone)
HIGH
Emergency Alarm
Emergency Call Transmit
Emergency Call Receive
MSU Mode Change, Power Down
Table 14 MSU Proxy Request Priorities
PSU Proxy Request Priorities
PSU Proxy Request Priority Level
Proxy Request
HIGH
Emergency Alarm
Emergency Call
LOW
All other Proxy Requests
Table 15 PSU Proxy Request Priorities
