Siemens FS720 Mounting & Installation page 175

6.24.2.3 X3 sounder 3 and 4 outputs
Building Technologies
Fire Safety
Pin Designation
1 S4 out+
2 S4 out-
3 S3 out+
4 S3 out-
Admissible cable cross-section: 0.08...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.
Installing, exchanging and connecting modules
Description
Sounder output 4 (+)
Sounder output 4 (-)
Sounder output 3 (+)
Sounder output 3 (-)
3 kΩ
3 kΩ
6
Sounder module
175 | 222
A6V10210390_j_en_--
2015-12-15