FIRE ALARM SYSTEM Fire alarm system provides an important & vital role in case of detection FIRE CONTROL PANEL is the most useful & brain part. Of the system. The Panel is situated where the technicians can draw attention throughout the day. The Panel consists of different modules: ZONE, AC, DC, CHARGER, ALARM, TIMER, CONTROL, DPM. Zone senses fire, open and short circuit of the respective zone, cabling network, gives visual indication and sends the signal to control module. AC module consist of ON/OFF switch, fuse, mains indicator and fuse blown indicator. DC module consists of AC to DC rectifier, 24-volt regulator, DC supplies fuse and fuse blown indicator. Charger module consists of charger circuit and monitor circuit to monitor the condition of batteries Alarm consists of alarm circuits. Timer modules consists of a timer circuits. Control part receives fire and fault signal from various modules then it gives the fire /fault signal to alarm module. Alarm cancel circuit stops the signal to alarm card when alarm cancel button is pressed. Master test of fire, open and short signals are derived from this module. These signals are injected through zone module test switch. Last test signals are also taken from this module. Digital panel meter shows the status of ac voltage, system voltage, and battery current. Other major important parts: Ionization Smoke Detector, Electronic Hooter, Manual Call Point, Heat Detectors, Response Indicator.