System Operation Control Switches
28 RP-1001 15150:F  05/24/2001
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Acknowledge alarms, troubles and supervisories.  The 
panel has alarm and trouble resound with LED flash of 
new  conditions.  The flashing trouble LED(s) illuminate 
steadily on TONE SILENCE and the piezo turns off.  A 
second trouble will resound the piezo.  Trouble condi-
tions are self-restoring. Alarms latch and require RESET 
to clear.  Unless the unit is set for non-latching supervi-
sory service, supervisories latch and require RESET to 
clear.  The piezo has three tones for different conditions; 
see “Piezo” in Section 3.4. 
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Acknowledge for alarms and supervisories.  The 
ALARM SILENCE switch will silence the local piezo, 
change any flashing alarm LEDs to steady, and turn off 
the notification circuits (not the Releasing Circuits).  The 
“ALARM SILENCE” LED will illuminate. Alarm 
silence is a latching function and requires a RESET to 
clear. 
Note: Releasing Circuits will turn off only if Discharge 
timer criteria is satisfied; see “Setting Mode of 
Operation” in Section 2.10.
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The ALARM ACTIVATE switch may be used to activate 
Notification Appliance Circuits.  ALARM ACTIVATE 
also activates the System Alarm relay.  ALARM ACTI-
VATE is a latching function.  Pressing ALARM 
SILENCE silences the notification circuits and System 
Alarm Relay and lights the Alarm Silenced LED.  Press-
ing RESET returns the system to normal.
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The RESET switch breaks power to all initiating circuits, 
four-wire smoke power and optional boards and will 
clear any activated output circuits.  If any alarm or trou-
ble still exists after reset, they will reactivate the panel.  
Holding RESET down will perform a LAMP TEST 
function and will activate the piezo sounder.
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The alarm and/or trouble LED(s) will flash until the event(s) 
has been acknowledged (TONE or ALARM SILENCE), at 
which point the LED(s) will illuminate steadily.
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Alarm LED
Trouble LED
Alarm LED
Trouble LED
Alarm LED
Trouble LED
(Not used)
Trouble LED
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