What type of signal requires immediate dispatch to the public fire device communications center?

An alarm signal is a type of signal that indicates a potential emergency situation, warranting an immediate response from emergency services. When an alarm signal is received by the public fire device communications center, it typically suggests that there is a fire or a significant risk of fire at the premises. This necessitates prompt dispatch of firefighting resources to the location in order to address the situation as quickly and effectively as possible to protect property and lives.

In contrast, test signals are often sent as part of routine maintenance checks to ensure that the alarm system is functioning properly, and they do not require any immediate action. Alert signals may indicate a non-emergency situation that requires attention but does not demand the same level of urgency as an alarm signal. Similarly, fault signals indicate issues within the alarm system itself, such as a malfunction, which do not trigger an emergency response but rather require investigation and repair.