Which signals must take priority over all other signals in a fire alarm system?

In a fire alarm system, fire signals must take priority over all other types of signals because they indicate a life-safety emergency situation. When a fire signal is activated, it usually triggers immediate actions such as alerting occupants, sounding alarms, and notifying emergency responders.

The design of fire alarm systems primarily serves the purpose of ensuring occupant safety and minimizing damage during a fire event. Therefore, it's essential that any normal operations or lesser-priority signals, such as maintenance signals, non-fire signals, or general status signals, do not overshadow or delay the response to fire signals. This prioritization is crucial for prompt evacuation and response measures, which can ultimately help save lives and protect property during a fire emergency.