The design should consider occupant response times, the clarity of alarm signals, and the effectiveness of phased evacuation strategies.
Grounding elevators and releasing electromagnetic door locks. Air Handling:
Listed horizontally across the top row. These represent the actions the system takes. fire alarm cause and effect matrix
The matrix must be printed, laminated, and located next to the main fire alarm control panel . If the fire chief arrives at 3 AM and the building manager isn't there, the chief must be able to read the matrix to understand the building's logic.
This is the "hunch" phase. A single detector triggers, or a "Request to Exit" motion sensor is tripped. The design should consider occupant response times, the
Sounders, voice evacuation public announcements (PA), and flashing strobe lights.
Releasing magnetically held fire doors and unlocking egress routes [2, 20]. These represent the actions the system takes
At the intersection of a cause (row) and an effect (column), a symbol like an "X" or a checkmark indicates that this specific cause should trigger this specific effect.