Basic Components:
- Main Fire Alarm Control Panel (MFACP)
- Sub Fire Alarm Control Panel (SFACP)
- Alarm Relay (Inside the SFACP)
- 2 Pole Relay
- Detector (Smoke, Heat, Multi-sensor Detector)
- AC Powered Horn – for Alarm Notification
- AC Power Supply directly connected to the nearest Panel Boards (with Separate Circuit breaker)
In case of Fire (means a Detector is activated, in this case the detector acts as a switch), Alarm Relay inside the SFACP will be energized by the system voltage (24V). This will cause also the second Relay (2 Pole) to be energized. Thus, controlling the 2 functions: to send signal to the MFACP and to serve as a switch for the AC Powered Horn.
This example is for Fire Alarm System that uses AC Powered Horn as a Notification device.
