Interfaces & connections
Mounting and Installation, Technical Description, T 811 065 en
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3.6.11
BX-REL4 relay module connection
There are four potential-free relay outputs available for switching loads up to 2 A and up to 230 V. All the relays are bistable
switchover contacts, and each one has a screw terminal for the normally closed contact and the normally open contact. For
each output an “active in fail-safe position” can be programmed in the event of loop voltage failure.
Further information about the BX-REL4 can be found in data sheet T 131 457.
GND
SHLD
SHLD
GND
L1
L2
X5
BX-REL4
1
NC1
NC2
NC3
NC4
NO1
NO2
NO3
NO4
COM1
COM2
COM3
COM4
X1
X2
X3
X4
Example 1:
actuation with own
voltage supply
e.g. sirens
Example 2:
actuation as
standby contact
e.g. control electronics
Example 3:
actuation with external
voltage supply
e.g. ventilation motor
Power supply unit
-
+
External
power
supply
M
Elevator
control
+
-
S
H
L
D
S
H
L
D
L
1
L
2
G
N
D
G
N
D
Fig. 32 BX-REL, relay module connection
3.6.12
BX-RGW radio module connection
The BX-RGW serves to link radio detectors to the fire alarm control panel.
Notice
Before the batteries are placed in the BX-RGW, DOW 1171 and SMF6120, please note the relevant information
in the radio module technical description T 131 456.
GND
SHLD
SHLD
GND
L2
X2
BX-RGW
BA-RFM
DOW 1171
1
SMF 6120
S
H
L
D
S
H
L
D
L
2
L
1
G
N
D
G
N
D
L1
Fig. 33 BX-RGW, radio module connection
