Fire Alarm Cause And Effect Matrix -

Smoke detectors, heat sensors, manual call points (pull stations), water flow switches, and sprinkler tamper switches. Effects (Outputs)

A Fire Alarm Cause and Effect (C&E) Matrix—also known as an Input/Output (I/O) Matrix fire alarm cause and effect matrix

Without a well-defined C&E matrix, this integration becomes reactive and inconsistent, potentially hindering evacuation and compromising firefighter access. Smoke detectors, heat sensors, manual call points (pull

Turning off air handling units to prevent smoke spread [18, 20]. Building codes (like NFPA 72 in the US

Building codes (like NFPA 72 in the US or BS 5839 in the UK) require documented logic for how a system operates. During a commissioning fire test, an inspector will hold the C&E Matrix in their hand and trip devices to ensure the programmed reality matches the design intent. How to Read a Matrix Typically, the matrix is a spreadsheet. Lists the Input Devices (The Causes).