What is the function of an annunciator in a fire alarm system?

• A. It provides a local audible alert for occupants.
• B. It displays system status at a remote location.
• C. It powers the main electronics
• D. It monitors only smoke detectors

Answer: (B)

An annunciator is a remote display panel for a fire alarm system. It shows the current status of the system—such as which zones are in alarm, normal, or in trouble—so staff or responders can quickly see what’s happening from a location away from the main control panel. It helps pinpoint where action is needed without going to the main panel. The loud alerts in the building come from the notification appliances, not the annunciator, and the system’s power comes from the fire alarm power supply, not the annunciator. While it can reflect the status of multiple detectors, its purpose isn’t to monitor only smoke detectors but to provide an overview of the whole system.