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Figure 3
NO
Fault Relay
When a fire is detected, the fire relay will be activated. The
current now flows via the C-NO terminals of the fire relay, the
current limiting resistor and the NC-C terminals of the fault
relay. The EOL device is in parallel with the resistor. This will
cause a current change in the circuit which will be detected by
the panel as a fire condition.
Fire Condition
Detector
Zone Input
EOL Device
C
NC
Resistor
Fault Condition
Detector
Zone Input
10
NO
C
NC
Fire Relay
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