Siemens FS20 - Page 200

Mounting and installation of the compact control panels
Sounder module
5
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Building Technologies
008851_s_en_
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Fire Safety
2016
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01
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27
5.25.2.3 X3 sounder 3 and 4 outputs
Pin Designation Description
1 S4 out+ Sounder output 4 (+)
2 S4 out- Sounder output 4 (-)
3 S3 out+ Sounder output 3 (+)
4 S3 out- Sounder output 3 (-)
Admissible cable cross-section: 0.08…1.5 mm²
The terminating resistor of 3 kΩ has to be connected even when the output is not in
use.
1
2
X3
S4 out-
S4 out+
3
4S3 out-
S3 out+
+
-
-
+
3 k
Ω
3 k
Ω