Siemens FS720 - Page 75

Mounting and installing extinguishing control panels
Extinguishing terminal installation and wiring
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248
Building Technologies
A6V10210390_m_en_
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Fire Safety
2018
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08
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29
Wiring diagram
Figure 40: Wiring diagram for external extinguishing terminals
FCA2046 Card cage
EXT_DATA_B
EXT_DATA_A
A
B
Extinguishing terminal 1, X1
DATA_A_IN
A
B
1
3
2
4
A
B
DATA_A_OUT
DATA_B_IN
DATA_B_OUT
Extinguishing terminal n, X1
DATA_A_IN
A
B
1
3
2
4
A
B
DATA_A_OUT
DATA_B_IN
DATA_B_OUT
+
-
5
7
6
8
X10
VSYS_POS
VSYS_NEG
#MAINS
#BATTERY
Extinguishing terminal 1, X2
+
1
3
2
4
5
7
6
8
-3SRC
+3SRC
VSYS_POS
VSYS_NEG
+
-
-
-
+
VSYS_POS
VSYS_NEG
#MAINS
#BATTERY
Extinguishing terminal n, X2
+
1
3
2
4
5
7
6
8
-3SRC
+3SRC
VSYS_POS
VSYS_NEG
+
-
-
-
+
EXT_VSYS
EXT_VSYS