36 NFS2-3030 Operations Manual — P/N 52546:N1 06/20//2014
Operation of the Control Panel Pre-alarm Event
When an unacknowledged event with a higher priority exists, the control panel retains indications
of the higher priority event (the message, lit LED, audible tone, etc.) while flashing the
PRE-ALARM
LED and sending a Pre-alarm message to the History buffer, installed printer and annunciators.
The Pre-alarm screen display is the same for both alert and action conditions. Following is a sample
screen for a Pre-alarm message.
Figure 2.5 Sample Pre-alarm Message
PREALARM 120% OF FIRE SENSITIVITY LEVEL4
ELEVATOR LOBBY EAST WING
FIRST FLOOR DOOR SMOKE(PHOTO)
11:58:45A TUE JAN 25, 2011 L01D134
EVENT COUNTS
FIRE ALARMS:000 PREALARM:001 TROUBLE:000
SUPERVISORY:000 SECURITY:000 DISABLE:000
11:59:35A TUE JAN 25, 2011
ACKNOWLEDGE SIGNAL SILENCE
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