MP-12/24 Fire Alarm Control Panel Document 15440:G 6/6/96
5
Figure 2.1: Controls And Indicators
Section Two:
Controls and Indicators
RESET - The function of this switch is to reset the control panel and the smoke detectors provided the alarm
condition has been cleared. A trouble condition is indicated while this switch is depressed.
TROUBLE SILENCE - This latching, two-position switch, when pressed, will silence the pulsing audible
trouble signal. The trouble LED will continue to indicate a trouble condition. An intermittent tone will sound
when the trouble is corrected to indicate that this switch should be returned to its outward (normal) position.
DISABLE - This latching, two-position switch, when pressed, will prevent the activation of Notification
Appliances and the operation of the optional modules. The alarm LED(s) will continue to indicate the alarm
conditions. A trouble condition is indicated while this switch is in the off-normal position.
ALARM - Red LED(s) which indicate an alarm condition. The DISABLE switch will not effect the ALARM
LED(s).
TROUBLE - A yellow LED which is illuminated during a fault or abnormal operating condition.
AC - The green LED is on when the control panel is operating from the AC power source. Yellow and green
LEDs both flash to indicate below normal line voltage (brown-out). An extinguished green LED indicates
complete loss of AC power.
AUDIBLE TONE - An audible tone will sound to indicate the following:
• Alarm: A continuous sounding audible tone.
• Trouble: A pulsing audible tone signal having a short on time and long off time.
NORMAL STANDBY OPERATION
• All push button switches must
be in the normal outward
position.
• Green AC power indicator on
steady.
• Red ALARM indicator(s) off.
• Yellow TROUBLE indicator off.
ALARM CONDITION
• A red Alarm indicator will light.
• Alarm Notification appliances
are activated.
• Option module (remote station or supplementary alarm relay) is activated.
• Off-Normal Trouble Silence Switch: Indicated by an intermittent audible tone signal having a long on
time and short off time.
ALARM RESET
After locating and correcting the alarm condition, reset the control panel by pressing the RESET switch.
Return all switches to their normal positions.
TROUBLE CONDITIONS
Activation of a trouble signal under normal operation indicates a condition that requires immediate correc-
tion. Contact your local service representative. The audible signal may be silenced by depressing the
TROUBLE SILENCE switch. The trouble LED will continue to flash.
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