8G093X01 R5
VR Programming Guide
August 2022 Page 50 of 144
Programming the PSUs for DVRS Operation
The programming of the PSU depends on the PSU type and user requirements. The following
paragraph describes the programming options related to DVRS operation for the 3 main types of
PSUs – Analog, P25 Digital (Generic), P25 DVRS Enabled.
Certified PSU models have modified firmware that allows them to operate as ‘DVRS Enabled’.
See Futurecom website → Support → Customer Documentation → DVR-LX/DVR/VRX1000 →
Compatibility Chart https://futurecom.com/upl/downloads/resources/support-
resources/firmware-compatibility-chart.pdffor a list of these certified XTS, APX & APXNext
portables and the corresponding subscriber options required.
All other P25 capable PSU models or the above models with older firmware versions can only be
programmed as ‘P25 Generic’ since they are not capable of enhanced communications with the
VR.
NOTE:
APX MSUs can also be programmed as ‘DVRS Enabled’ and used to communicate through a
VR provided they are NOT interfaced to a VR.
Programming the P25 ‘DVRS Enabled’ PSU
The P25 ‘DVRS Enabled’ PSU needs to be affiliated on the P25 FNE through the VR therefore
its ASTRO Unit ID and TG ID must be valid and allowed on the FNE side.
Typically, the conventional ASTRO PSU Unit ID is set to match that of the Trunking system PSU
ID in in-band applications. In cross-band application the ASTRO PSU unit ID must be enabled in
the P25 system to be able to affiliate and communicated through the VR.
If Fireground (FG) signaling is enabled in the PSU, ensure that the programmed “Tx Voice
Type” (analog or digital) matches the type of corresponding VR “FG Enabled” channel (analog
or digital).
XTS Series ‘DVRS Enabled’ PSUs
If the XTS DVRS Enabled PSU needs to support say 10 TGs via VR, then the PSU needs to be
programmed with 10 different conventional ASTRO personalities using the designated DVRS
Enabled ASTRO system. Each conventional personality must be strapped to the corresponding
TG ID from the specified TG List. Each conventional personality is then assigned to a desired
PSU mode in the Zone / Channel assignment listing. The PSU behavior, when switched to a VR
channel, is specified by programming the desired features in the corresponding ASTRO system
‘DVRS’ Tab. Alternatively the PSU can be programmed with just one (or a few TG IDs) and TG
translation can be enabled in the VR so that the PSU TG ID is always translated to the ID of the
TG selected on the MSU control head.
NOTE: TG IDs are programmed in the XTS PSU conventional ASTRO Talkgroup List in decimal
format.
IMPORTANT!
The PSU and VR PL/DPLs must be programmed to be properly matched. The DVRS Enabled
PSU must be programmed for mixed receive to program PL on a DRVS Enabled Channel
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