FireClass FC600 Series - Connecting Supervised Inputs

FireClass Panels and Repeaters Connecting supervised inputs
Installation Guide Doc. version 2.0 24
11.3 Connecting supervised
inputs
The Supervised Input is active when the resistance
applied between the input + and - terminals goes low.
For example, when a shorting switch closes. Resistors
are used to enable short and open circuit detection in
the switch wiring.
Only connect to the Supervised Input if it is set up in the
configuration.
Connect the switch using series and parallel resistors as
shown in Fig. 18. The resistors are supplied. The switch
must be externally sourced.
If you are not sure if the Supervised Input is used or not,
connect the ‘end of line’ 10 kΩ resistor directly across
the terminals. This will prevent a fault condition.
Fig. 18: FC-FI - Inputs and Outputs. The labels are as printed on the PCB.
1– ALARM relay. Shown in the "normal" position (no alarm).
2– FAULT relay. Shown in the "normal" position (no fault).
3– See Section “Connecting supervised inputs” on page 24.
4– See Section “Connecting local sounders” on page 23.
N/O
C
N/C
N/O
C
N/C
RL1 A LARM
RL2 FAULT
EA IN
ISOL IN1 / ISOL IN2
SVO IN1 / SVO IN2
SDR1 / SDR2
24V
+
–
C
N/C or N/O
R L3 / RL4
10k Ω
2kΩ
330 μF/50 V
+
+
+
+
–
–
–
–