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Siren function

The siren is activated by alarming the IN SIR input. The alarm status of the IN SIR input is
programmable using the SW-2 and SW-3 programming switches.
• WARNING! In any operating mode, the installer must ensure that the absence of power to
the control devices (e.g. alarm control unit or presence sensors) does not cause changes
in the inputs of the FG100F such as to trigger an undesired activation of the smoke
release. Particular attention must be paid with the "Positive and Negative to REMOVE"
configurations.
These are the possible combinations and the corresponding operating modes:
Positive to give - Normally open to a positive
ON
ON
SW-2
SW-3
(3÷15Vcc)
(3÷15Vcc)
Negative to give - Normally open to a negative
ON
ON
IN SIR
SW-2
SW-3
GND
IN SIR
GND
IN SIR
Rest state: IN SIR input with open contact
+V
hi
IN SIR
Alarmed state: IN SIR input in logic state "1" (contact
closed at voltage higher than the minimum voltage of
logic state "1")
+V
hi
Rest state: IN SIR input with open contact
Alarmed state: IN SIR input in logic state "0" (contact
closed at voltage lower than the maximum voltage of logic
state "0")
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