What should be the visible annunciation of the location of an operated initiating device?

What should be the visible annunciation of the location of an operated initiating device?

• A. A bell
• B. An indicator lamp
• C. A horn
• D. A strobe

Answer: (B)

When an initiating device is operated, a local visual cue is needed to identify exactly which device was activated. An indicator lamp installed at or near the initiating device provides this immediate, location-specific feedback, so responders know the source of the alarm right away. Bells and horns are for occupant notification (audible alerts), while a strobe serves as a general visual alert to occupants and does not identify the specific device that was activated. Some systems can show device locations at the panel, but the question focuses on the local visible annunciation, which is accomplished by an indicator lamp.

When an initiating device is operated, a local visual cue is needed to identify exactly which device was activated. An indicator lamp installed at or near the initiating device provides this immediate, location-specific feedback, so responders know the source of the alarm right away. Bells and horns are for occupant notification (audible alerts), while a strobe serves as a general visual alert to occupants and does not identify the specific device that was activated. Some systems can show device locations at the panel, but the question focuses on the local visible annunciation, which is accomplished by an indicator lamp.