Siemens FS720 Mounting & Installation page 205

7.24.2.4 Connecting two sounder modules
X6 / X5
SOUND1-
-
SOUND1+
+
X8
GND_01
-
VSYS_01
+
Periphery board
FCI2002/FCI2004
FCI2010
FC72x
Building Technologies
Fire Safety
A maximum of two sounder modules may be connected.
X1
4 -
3 +
2 -
+
1
FCA2005
X1
4 -
3 +
2 -
1 +
FCA2005
Figure 121: Connecting two sounder modules FCA2005-A1
Installing, exchanging and connecting modules
Sound In- S2 out+
Sound In+
S2 out-
Ground
S1 out+
Vsys
S1 out-
S4 out+
S4 out-
S3 out+
S3 out-
Sound In-
S2 out+
Sound In+
S2 out-
Ground
S1 out+
Vsys
S1 out-
S4 out+
S4 out-
S3 out+
S3 out-
7
Sounder module
X2
1
+
3 kΩ
2
-
+
3
3 kΩ
-
4
X3
1
+
3 kΩ
2
-
+
3
3 kΩ
-
4
X2
1
+
3 kΩ
2
-
+ 3
3 kΩ
-
4
X3
1
+
3 kΩ
2
-
+
3
3 kΩ
-
4
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2018-08-29