CPG FIRELARM 2500 CPG #2561255 - Manual (Page 12)

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Contents
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CPG #2561255 F IRE L ARM 2500 Operating Manual
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2.5.3 NAC trouble / silence
Notification appliance circuit:
An increase of current to approximately 3.5mA when not in alarm or a decrease in current to
approximately 1.5mA on the notification appliance circuit will result in the following:
Operation of the bell trouble LED.
Operation of all system trouble indications (section 2.5.11 System trouble).
Trouble zone number and name is displayed on the optional LCD.
A current in excess of 2.5 amps, when the panel is in the alarm condition will
result in a bell trouble. This will require pressing

to clear.
A problem in an audible or visual device may not be apparent when the
panel is in a normal standby condition. If a notification device indicates
a trouble condition when the panel is in an alarm condition, the problem
must be located and corrected.
2.5.4 Supervisory trouble
A decrease of current on the supervisory initiating device circuit to approximately 2mA will result in the
following:
Operation of the supervisory trouble LED.
Operation of all system trouble indications (see section 2.5.11 System trouble).
SUPERVISORY TROUBLE CONDITION is displayed on the optional LCD.
2.5.5 Initiating zone trouble
An increase in current to a level between 7mA to 20mA or a decrease of current to below 3.0mA or
pressing

for any initiating device circuit will result in the following:
Operation of the zone trouble LED.
Operation of all system trouble indications (see section 2.5.11 System trouble).
Trouble zone number and name is displayed on the optional LCD.
When the circuits are operated in the Style D (Class A) mode any trouble
condition will require pressing

to restore the panel to normal after the
fault has been removed.
2.5.6 …
2.5.7 Initiating circuit alarm
An increase of current on any alarm initiating device circuit to approximately 20mA or greater
will result in the following (if all the associated touchpad settings are in the normal standby
condition).
Operation of the audible or visual devices on the notification appliance circuit.
Operation of the zone alarm LED.
Operation of the auxiliary alarm contacts.
Operation of the buzzer for alarm (steady tone).
Reverse the voltage polarity of the remote alarm (RA) circuit.
Alarm zone number and name is displayed on the optional LCD.