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Connecting a BSR-8020/WP/MAR with detectors ΒS-685 or ΒS-686. The auxiliary
relay is used to interrupt the power to the detectors after a reset.
24V power supply
from panel
56k
Ω
10kΩ
Loop
Loop
921802003_09_005
Operate as a Input unit
BS-685
or
BS-686
BS-685
or
BS-686
+24V
IN
NO
+IN
C
-IN
NC
ON
OFF
+L+L+L
-L
PE
PE
+L+L+L
-L
Connecting gas detectors
Operation
Dip-switch setting
Relay is activated for
5 seconds after a reset
1
ON
2 3 4 5 6 7 8 9 10
1
ON
2 3 4 5 6 7 8 9 10
The relay is activated
only when the input
is activated
