Which component is typically used to deliver audible messages to occupants in emergency communications systems?

Which component is typically used to deliver audible messages to occupants in emergency communications systems?

• A. Public address
• B. Sirens
• C. Loudspeakers
• D. Visual alarms

Answer: (C)

Delivering audible messages to occupants relies on devices that convert electrical audio into sound in the environment: loudspeakers. In an emergency communications setup, the network may include a public address system, microphones, and amplifiers, but the actual sound you hear as you listen to instructions comes from the loudspeakers spread throughout the building. Sirens and visual alarms provide alerts or visual indications, but they do not carry spoken instructions.