14 NFS2-640 Operations P/N 52743:L4 06/10/19
Use of the Controls Control Keys
2.3.2 Signal Silence
Use the SIGNAL SILENCE key to silence the panel sounder and turn off all audio and visual devices
connected to Notification Appliance Circuits. When pressed, the control panel does the following:
• Turns off the panel sounder
• Turns off all silenceable output circuits
•Lights the
SIGNALS SILENCED LED
• Sends a
SIGNALS SILENCED message to the History buffer and installed printers, CRT-2
terminals, and annunciators
Partial Signal Silence
When some active outputs are silenced and others remain constant, the SIGNALS SILENCED LED
will flash.
2.3.3 System Reset
Use the SYSTEM RESET key to reset the control panel. When pressed, the control panel does the fol-
lowing:
• Clears ALL active inputs
• Interrupts resettable power
• Sends a “System Reset” message to the History buffer, and installed printers, CRT-2 terminals,
and FDU-80 annunciators
• Decouples from Noti•Fire•Net, if connected, for 60 seconds to allow Cooperative Control By
Event (CCBE) to clear.
If any alarm or trouble exists after you press the
SYSTEM RESET key, all NACs, control outputs, and
panel audio and visual indicators will reactivate.
2.3.4 Drill
Use the DRILL key to manually activate all silenceable outputs and Notification Appliance Circuits.
To prevent accidental activation, you must press the
DRILL key for 2 seconds. When pressed, the
control panel does the following:
• Turns on all silenceable NACs
• Turns off the
SIGNALS SILENCED LED
• Sends a Manual Evacuate message to the History buffer and installed printers, CRT-2
terminals, and FDU-80 annunciators
NOTE: If Local Control is set to “0” (No Control) or “2” (Partial Control), the FACP will not
respond to SIGNAL SILENCE.
NOTE: Trouble conditions will not clear and re-report upon reset.
NOTE: If Local Control is set to “0” (No Control), the FACP will not respond to SYSTEM RESET.
NOTE: If Local Control is set to “0” (No Control) or “2” (Partial Control), the FACP will not
respond to DRILL.
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