8M083X25 R14
APX Series P25 Interface
DVRS Installation & Programming Guide
–
PART II
January 2019
Page 60 of 153
MSU Field Name
Options/Units
Description
Notes
Proxy Time Out
Timer (sec)
15 sec to Infinite in
15 seconds
increments
Selects the amount
of time that the
MSU is able to
transmit a "proxied"
audio call, in other
words, continuous
group voice or
individual voice
audio from a PSU
(via the DVRS) to
the FNE system.
Infinite indicates
that no timeout
occurs regardless
of the duration of
the PSU call.
Proxy Limited
Patience (sec)
1 sec
– 60 secs
Selects the amount
of time that the
MSU waits for a
busy Conventional
channel to become
available for a PSU
(Proxy)
transmission
request before
failing the
transmission.
Applies specifically
to proxy signaling
transmissions, such
as status,
message. call alert
etc.
P25 Trunking OTAR via DVRS
In order for the DVRS MSU to provide packet data services to associated PSUs on a P25
Trunking system, the MSU must be configured for packet data operation and must be
context activated on the system.
MSU Scan Programming Requirements
The MSU Scan feature is allowed while the DVRS is active (System or Local Mode) if the
MSU Scan type is configured as one of the following:
•
Trunking Scan
•
Conventional Scan
•
Mixed Conventional Voting Scan
•
Legacy Voting Scan
•
Multi System Scan
•
Priority Monitoring
The MSU does not support any other modes of scan operation, apart from those listed
above, while the DVRS operates in SYSTEM or LOCAL mode. In such unsupported
cases, the MSU will automatically suspend scan operation when the DVRS is set to
SYSTEM or LOCAL mode of operation and resume it when the DVRS is OFF.
NOTE:
The LPSU calls will be repeated on the MSU Selected Channel.
