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Presignal and Positive Alarm Sequence (PAS) Operation
80 AFC-600 Operations PN 51033:A 3/8/99
The
FIRE
ALARM
LED flashes and the panel sounder pulses a steady tone. The control
panel latches until the alarm is corrected and you press the S
YSTEM
R
ESET
key to reset
the control panel. You have the duration of the Presignal Delay Timer (60-180 seconds)
to respond to the alarm before the control panel automatically activates all outputs
programmed to F0. You can take the following actions:
• To silence the panel sounder and change the
FIRE
ALARM
LED from flashing to
steady, press the A
CKNOWLEDGE
/S
TEP
key.
• To abort the Presignal Delay Timer, turn off the panel sounder and all silenceable
output circuits and light the
ALARM
SILENCED
LED, press the
ALARM
SILENCE
key.
• To manually activate all outputs programmed to F0, press the
ALARM
ACTIVATE
key. The Manual Evacuate screen appears, the panel sounder pulses and the
FIRE
ALARM
LED to changes from flashing to steady. The Manual Evacuate screen and
Alarm screen display alternately at 3-second intervals.
If the Presignal Delay Timer reaches its programmed value, without operator
intervention, the control panel activates all outputs programmed to F0.
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If an alarm occurs with a Presignal Delay Timer (60-180 seconds) and PAS selected, the
control panel displays an Alarm screen that shows the type of device and the SLC
address of the device causing the alarm. When an alarm comes from an initiating device
with a CBE list that includes F0 (with PAS selected), the control panel delays the
following outputs:
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• System Alarm relay (TB3 on the MPS-6)
• 4XTM Polarity Reversal Alarm output
• 4XTM Municipal Box output
If a second alarm occurs during the Presignal Delay Timer, the control panel aborts the
Presignal Delay Timer and activates all programmed outputs. Figure 84 shows a sample
Alarm screen for a monitor module:
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