8M083X25 R14
APX Series P25 Interface
DVRS Installation & Programming Guide
–
PART II
January 2019
Page 87 of 153
Field Name
Range
Description
Notes
Individual Call
Setup
Private Call Hang
Timeout
10-60 sec
If no PSU activity is detected for the
duration of this timer, the DVR cancels
the Private Call and is ready for servicing
other calls.
Typical recommended
setting is 30 seconds.
Individual Call
Setup
Telephone
Interconnect
CCT
OFF
– 60
minutes
If a telephone call between a local PSU
and the Trunking system is processed by
a given DVRS and the call exceeds the
programmed timer, the call will be
automatically disconnected. This timer
applies to phone calls only.
Individual Call
Setup
Telephone
Interconnect
Hang Timeout
10-60 sec
If no call activity is detected for the
duration of this timer, the DVR cancels
the phone call.
Typical recommended
setting is 30 seconds.
P25 Frame Sync
Detection Timer
30-255ms
Upon Carrier Activated Squelch (CAS)
activation, if the DVR digital decoder
does not detect P25 Frame sync before
this timer expires, the DVR analog
decoders will be switched on (i.e.
PL/DPL, DTMF, MDC1200…).
Applicable to Mixed
Mode DVR Channels
only. Default
recommended value is
set to 100ms.
VR Ch Mixed
Mode Hold Timer
0-255 sec
This timer determines the DVR Mode
Hang Time. If the DVR receives a call
from an Analog PSU, the DVR will stay in
Analog mode until this timer expires. Any
System reply which is received before
the
timer’s expiration will be transmitted
in Analog Mode. The timer is started
when the originating Analog PSU keys
OFF.
Upon expiration of the timer, the DVR
switches to digital repeat mode.
Applicable to Mixed
Mode DVR Channels
only. When a Mixed
Mode DVR channel is
selected, the default
DVR mode is P25 Digital.
