Can fire alarm signals and trouble alarms share the same tone?

Fire alarm signals and trouble alarms must be distinct to ensure clear communication during an emergency. The differentiation in tones serves a critical purpose. Fire alarm signals typically indicate an immediate danger that requires evacuation or immediate action, whereas trouble alarms signify a malfunction or issue with the fire alarm system itself that does not require immediate evacuation.

Using different tones prevents confusion among occupants and first responders. In an emergency situation, clarity is paramount, and having different tones allows individuals to quickly ascertain whether there is an immediate threat or a technical issue. This distinction is part of the National Fire Protection Association (NFPA) standards and guidelines, which aim to enhance safety and response time during fire emergencies.