Siemens FS720 Mounting & Installation page 204

Installing, exchanging and connecting modules
7
Sounder module
7.24.2.3 X3 sounder 3 and 4 outputs
204 | 248
Building Technologies
Fire Safety
Pin Designation
1 S4 out+
2 S4 out-
3 S3 out+
4 S3 out-
Permissible conductor cross-section: 0.2...1.5 mm²
X3
S4 out+ 1
+
S4 out- 2
-
+
S3 out+ 3
-
S3 out- 4
The terminating resistor of 3 kΩ has to be connected even when the output is not in
use.
Description
Sounder output 4 (+)
Sounder output 4 (-)
Sounder output 3 (+)
Sounder output 3 (-)
3 kΩ
3 kΩ
A6V10210390_m_en_--
2018-08-29