The area for the annunciator panel is located in which of the following?

• A. In the exterior wall
• B. In an area approved by the AHJ
• C. In the mechanical room
• D. In the lobby

Answer: (B)

In fire alarm design, the place for the annunciator panel is not fixed by a specific room type; it must be in a location that the Authority Having Jurisdiction has approved. The AHJ assesses the building’s layout, egress paths, and protection plan to designate a spot that is accessible to staff, clearly visible, and protected from damage or tampering. That approval ensures the panel can be monitored and responded to effectively without compromising safety.

Exterior walls are generally unsuitable because they can be exposed to weather and tampering. A mechanical room may be out of sight or access-restricted, making it hard for staff to respond. A lobby could be appropriate in some cases, but only if the AHJ approves it and it meets visibility and accessibility requirements. Since the key requirement is official approval by the AHJ, that option represents the correct standard.