Where should the annunciator panel be located in a building?

The annunciator panel should be located in an area approved by the Authority Having Jurisdiction (AHJ) because this ensures compliance with local fire codes and safety regulations. The AHJ is responsible for enforcing regulations that govern fire protection and safety, and their approval helps to identify a suitable location that meets safety, accessibility, and operational needs during emergencies.

Locating the panel in an area approved by the AHJ facilitates better access for first responders and ensures that key personnel can monitor alarm statuses effectively. The placement also takes into account factors like visibility, accessibility, and the potential for interference from other building systems or hazards. This approach underscores the importance of collaboration with regulatory authorities to create a safe environment in the building.

Other options might seem logical, such as placing the panel in the main lobby for visibility or in an office for easy access, but without the explicit approval of the AHJ, those locations might not meet the necessary criteria to ensure safety and functionality during emergencies.