C
A
B
I+
I-
Out
-
A-
K1
A+
+
K2
L
N
-
+
Power supply
unit
SmartOutput
module
9.2 Connecting a fire alarm system emergency release
If the relay in the fire alarm system opens, this interrupts the SmartOutput
module's power supply, closing Outputs 1 to 8.
+
-
N
L
K2
+
A+
K1
A-
-
Out
I-
I+
B
A
C
1
2
Fire alarm
system
Break contact
Power supply
unit
SmartOutput
module
9.3 Circuit to prevent opening if power supply should fail
The AUX relay can be used in conjunction with the low voltage switching
output (OUT) to prevent actuators, such as a buzzer or an electric strike,
from switching of their own accord if the power supply to the SmartOutput
module is interrupted. This ensures that actuators will not be powered and
will not switch either if the SmartOutput module's power supply fails. This
circuit is suitable for handling power supply failures in the SmartOutput
module.
SmartOutput module
supply
SmartOutput module
AUX relay
AUX relay
contact
NO
Simplified diagram (de-energised state)
Switching
contact
e.g. 5 (NC)
Actuator supply
Actuator
VDC
VDC < 10 V
OUT = GND
S5
AK1
AK2
K5.1
K5.2
IN-AUX
IN-AUX
VDC
OUT
GND
12 VDC
24 VDC
-
+
+
-
SOM + SREL3.ADV
(Manual)
9. Connection to the SmartRelay
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