Which component of a fire alarm system alerts occupants?

The notification device, such as horns or bells, serves the essential function of alerting occupants in the event of a fire or emergency situation. This component is designed to provide audible and/or visual signals to ensure that individuals in the vicinity are made aware of the danger and can take appropriate action, such as evacuating the building or seeking safety. Effective notification is crucial in emergencies to minimize panic and guide occupants to safety in a timely manner.

While other components of a fire alarm system play vital roles, they do not directly alert occupants themselves. For instance, the smoke detector detects smoke and signals the control panel, but it does not notify occupants. The control panel manages the system's operation and processes signals from detectors but also does not emit alerts for the occupants. The battery backup is important for ensuring that the system remains operational during a power outage but is not involved in the process of notifying individuals of an emergency. This distinction underscores the specific role of notification devices in maintaining safety within a building.