Siemens FS720 - Page 205

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