Note: Third wire is needed at TB3
for second stage alarm.
DC Input - second stage with third wire
Line integrity: monitor via reverse polarity
DC Input - second stage by supply reversal
Line integrity: monitor via threshold (applied voltage
≤
1 V)
An end-of-line (E.O.L) resistor is required for line monitoring and
it should be a minimum resistance of 3K3 ohms and 0.5 watts.
AC Input
System connection
4
Figure 1
Figure 3
Figure 4
Figure 2
