Doc.No.: 03118-100-CO
Page 8 of 11
8.4.2 External Control outputs
During General Alarm (EM-PA/PA) some external outputs are activated.
1. Entertainment mute PA / GA Pass/Fail
2. Volume override Pass/Fail
3. GA warning (flashing) lights Pass/Fail
The GA Alarm tone consist of 7 short, 1 long tone bursts. One output is provided for tone
synchronisation and will be turned off (NO) and on (closing) along with the signal tone:
4. GA interface to ships whistle / siren Pass/Fail
8.5 Paging during alarm (General Alarm)
Activating “PA” during alarm will automatically select the “EM-PA” functionality.
The alarm tone will be muted during this override.
Check this function. Pass/Fail
8.6 Failure / warning outputs
There are two dry closing contacts voltage for indication of failure and warning conditions:
1. Power failure
Primary and Secondary mains power supply missing
Backup power missing
Pass/Fail
2. General warning
No communication with user panel
Pass/Fail
8.7 Redundancy test
Remove power from “A” system. Ensure all alarms and paging
operates satisfactorily on the “B” system. Restore power on “A” system.
Pass/Fail
Remove power from “B” system. Ensure all alarms and paging
operates satisfactorily on the “A” system. Restore power on “B” system.
Pass/Fail
8.8 Sound Pressure Level
The major requirement of a GA / PA system is sufficient coverage and sound pressure level
(SPL) for alarms and PA messages to be heard throughout the installation. The requirement is a
minimum of 75dBA and at least 10dBA above the ambient noise level. The requirement is
80dBA and at least 10dBA above the ambient noise level in interior and exterior spaces.
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