What is the fire alarm control unit?

• A. It is a system controller that provides power to the system and electrically monitoring all circuits extending from it.
• B. It switches power to notification appliances, building fire safety controls, and supplemental equipment based on input from initiating devices.
• C. It is the main power supply for the building.
• D. It is the remote annunciator panel.

Answer: (D)

The fire alarm control unit, in this context, refers to the interface that displays the system’s status and allows operator interaction from a remote location. The remote annunciator panel provides alarms, troubles, and other status indications from the main control unit and lets you acknowledge or respond to events without being at the main panel. It’s not the building’s main power supply, nor the primary device that switches power to notification devices based on initiating-device inputs (that’s the main control panel’s job). So, the remote annunciator panel is the best match for the fire alarm control unit in this item.