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DS9431Multiplex Expansion Module
Power
Alarm
1
2
4 5 6
7 8 9
*
0
Clear
Prog
I/O Module for the
DS9431 Multiplex
Expansion Module
Figure 5: 4-Wire Smoke Detector Wiring for the DS7432 and DS9400 Series FACP
For UL Listed fire installations, Normally Open (N/O) contacts must be used.
© Bosch Security Systems B.V., 2020
Torenallee 49 5617 BA, Eindhoven, Netherlands
DS9400 FACP
Trouble
Silenced
3
Drill
Silence
Disable
Test
Reset
#
History
Cmnd
Bus + and Bus - are connected to
MUX A terminals for addresses 9 -
128. MUX B terminals are for
addresses 129 - 255.
SMK+
SMK-
AUX+
AUX-
Power + may be connected to RA or RB
4-
on the FACP Option Bus terminal strip.
L+
Power - may be connected to BA or BB on
3-
the FACP Option Bus.
2-
L+
1-
12V Power (-)
12V Power (+)
+ –
POWER
Bus (+)
NFPA 72 does not allow redundant/duplicate
ground paths, do not connect wiring to the
BUS (-) terminal on this module for fire
applications. Only the BUS (+) needs to be
connected.
24V Smoke Power (+)
24V Smoke Power (-)
DS7432 Eight Input Remote Module
+ –
1
2 3
4 5
6 7
BUS
Smoke
Detector
Smoke
Detector
EOL
Resistor
P/N: 28010
EOL
Relay
DS7432 Installation manual
P/N: F01U262013-02
8
Example:
DS250 in a MB4W base
Example: EOL200
2020.05
Page 4
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