Futurecom P25 Installation & Programming Manual page 152

Keyword
Mode
MPE
MSU
NAC
NID
Outbound Call
PSU
PTT
RF
RSSI
System Mode
Talk Group
Talk Group
Translation
Trunking
Tweaker
January 2019
DVRS Installation & Programming Guide – PART II
Description
MSU / PSU - A programmed combination of operating
parameters.
DVR – OFF, SYSTEM or LOCAL (see DVR Mode)
Maximum Permissible Exposure.
Mobile Subscriber Unit
Network Access Code – used in P25 mode for validation of
P25 radio communications, similar to the use of PL/DPL in
analog mode. Also used for DVRS Steering.
Network ID - see Network Access Code (NAC)
System Call received by the MSU.
Portable Subscriber Unit.
Push to talk. The PTT engages the transmitter (of the Portable
or Mobile radio and / or DVR) when pressed.
Radio Frequency. Part of the general frequency spectrum
10kHz - 10,000,000 MHz.
Received Signal Strength Indicator.
DVR mode which provides extended voice and signaling
communications between System Users and Local Portable
Users over the selected DVR channel / Mobile Radio Mode.
A group of radio users who communicate with each other by
using the same communication path.
Feature where the PSU talkgroup is translated by the DVR to
match the currently selected MSU talkgroup.
The automatic sharing of radio frequencies by large number of
users based on communication path sharing for the length of a
conversation.
DVRS Programming Software Application
8M083X25 Rev. 14
APX Series P25 Interface
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