Emergency In Analog Mode; Emergency Alarm; Emergency Call - Futurecom DVRS User Manual

Emergency in Analog Mode

The Emergency operation in analog mode is based on the type of signaling as selected
in the Emergency Mode Setup Menu. The recommended analog mode signaling type is
MDC1200. Note that in addition to the DVR programming, MDC1200 signaling must also
be enabled in the local PSU personality. If MDC 1200 signaling is used, the Local PSU
Emergency Alarm MDC ID will be passed through to the system provided the MDC ID is
enabled (valid) on the system side.
NOTE:
MDC PTT ID pass-through is not supported by DVRS on Type 2 trunking MSU modes.
Only MDC Emergency ID (with Emergency Alarm) pass-through is supported by the
DVRS on Type 2 trunking MSU modes.

Emergency Alarm

When an affiliated local PSU issues an Emergency Alarm, the active Primary DVR will
process the emergency to the system as follows:
•
If the 'Portable ID Display' box (in the DVR Emergency Mode Setup) is
checked, the Local PSU Unit ID will be displayed on the MSU control head of the
current Primary DVRS.
•
The PSU Unit ID will also appear on the display of the other local PSUs if they
are programmed accordingly.
•
The local PSU ID during Emergency may also be displayed on the dispatcher
console.
•
The DVR sends back an Emergency ACK to prevent the PSU from re-sending
the Emergency either right after the DVR decodes the Emergency request (if the
'System Acknowledge Type' on the Mobile Radio Channel Settings menu is
set to "VR Ack") or after FNE ACK has been received (if the 'System
Acknowledge Type' on the Mobile Radio Channel Settings menu is set to
'Site Ack' or 'Console Ack' ).
•
All Secondary DVRS in the area are monitoring the number of emergencies
issued by local PSUs according to the 'Attempts Timeout' and 'Attempts
Counter' settings programmed in the DVRs Emergency Mode Setup. If the
number of detected not serviced Emergency Attempts exceeds the counter, the
Secondary DVRs will go through Primary / Secondary voting to select a new
Primary to pass the emergency to the system.
•
If a DVRS is in the OFF mode when it receives an Emergency from a local PSU,
the DVR will switch to SYSTEM mode after the 'Attempts Counter' is exceeded,
affiliate the PSU and pass the Emergency to the system.
The PSU Emergency attempts counter must be programmed to be equal to the DVRS
'Attempts Counter' plus 3.

Emergency Call

Emergency Call operation provides the user with access to a voice resource on a priority
basis. The user's Emergency Call has priority over all other types of call traffic. Upon
January 2019
8A083X30 Rev.11
APX Series P25 Interface
DVRS User's Guide
Page 74 of 94