What defines the function of a Fire Alarm Signal?

The function of a Fire Alarm Signal is specifically to indicate the presence of a fire. This signal is crucial in alerting occupants of the building to evacuate and notify emergency services to respond to the situation. Fire alarm signals can include audible alarms, visual signals such as strobe lights, and notifications sent to monitoring services. Their primary purpose is to ensure safety by providing immediate alerts during a fire incident.

In contrast, other options refer to different aspects of fire safety and alarm systems. A device designed for fire prevention training does not serve as an alert system in emergencies. Routine checks of alarms are part of maintenance practices to ensure systems are functioning but are not classified as fire alarm signals. A manual control for fire alarm systems, while necessary for activating alarms, does not represent the signal itself; rather, it is a mechanism used to initiate the alarm system function. Thus, the correct answer reflects the critical role of fire alarm signals in providing immediate warnings during fire emergencies.