Fire alarm and detection systems can work together to protect the lives of people within the facility. There are basic fire alarm system componentsbthis are, Fire alarm initiating devices is to activate the system there are two types of initiating devices. Manual devices include pull stations, break glass stations, or buttons that need to be manually activated. Automatic system the fire will automatically trigger if it happens. these include heat, flame, or smoke is detected. Fire notification devices the system notify building occupants when a fire is detected. notification devices include bells, strobes, horns, chimes. The fire alarm control panel activates notification devices. The status of the system is displayed and allows you to see when an issue is detected and allows you to control it manually. The primary power supply for your fire alarm system is supplied by your power. Typically the power source is 120- or 240- volt AC. The backup power supply is an important part of any fire alarm and detection system. The power supply includes 6- or 12- volt batteries to keep the system running when a power failure happens.