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8M083X25 R14
APX Series P25 Interface
DVRS Installation & Programming Guide
–
PART II
January 2019
Page 101 of 153
NOTE:
The unsupported PSU features list provided above may NOT include ALL unsupported
features. Please contact Motorola for specific feature support information.
Digital DVR Mode - Operation and Programming Overview
Digital DVRS Mode assumes the following:
•
Selected DVR channel is programmed for digital or mixed mode.
•
P25 PSU either programmed for digital DVR operation or Generic P25 and with
Digital mode currently selected (referred to as a
Local PSU
).
•
A DVRS Enabled, P25 MSU mode is selected on the MSU.
The DVR Channel programming requires that
Digital
or
Mixed
mode is programmed for
the specific DVR channel and the Tx/Rx frequencies as well as the Tx/Rx NIDs of the
PSUs and the DVR are matched.
NOTE:
Forced Analog Mode is a hybrid mode in which the communications between the DVRS
and the ‘DVRS Enabled’ P25 PSU including all signaling are digital, while the voice
communications are ‘forced’ to be analog when the MSU is on a non-P25 channel / TG.
When a P25 channel / TG is selected on the MSU, both signaling and voice between the
‘DVRS Enabled’ P25 PSU and DVR are P25 Digital.
Forced Analog All Mode is a hybrid mode in which the communications between the DVRS
and the ‘DVRS Enabled’ P25 PSU including all signaling are digital, while the voice
communications are ‘forced’ to be analog for all types of MSU channels.
PSU Affiliation
When a local PSU User selects a DVR Enabled Mode, 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).
IMPORTANT!
The maximum number of PSUs that can get affiliated at a given time with one DVRS
is 256.