Siemens FS720 Mounting & Installation page 188

Installing, exchanging and connecting modules
7
Module bus cards
188 | 248
Building Technologies
Fire Safety
Switching for RE response in accordance with ↑ VdS
27V2
0V
FireOutput1+
UE _Rückmeldung
Figure 106: Switching for RE response in accordance with VdS
ST Fault contact of the transmission device
Switching for monitored remote transmission
X11 UE_Fault+
UE_Fault-
Figure 107: Switching for monitored remote transmission
Rload Load resistance
Rcable Line resistance
1 Remote transmission
Switching variants for monitored alarm and horn outputs with
decoupled load (EN 54)
X11
FireOutput2-
FireOutput2+
FireOutput1-
FireOutput1+
Figure 108: Switching examples for monitored alarm and horn outputs with decoupled load (EN 54)
Rload Load resistance
Rcable Line resistance
Reol Termination resistor
1 Standard EOL
2 EOL with decoupled load
+
4
-
1
5
+
7
Rcable
+ 5
Rload
1
- 6
Example horn output
1
- 8
Rload
Reol
Rcable
+ 7
6
-
+ 5
2
Example alarm output
Rload
Reol
Rcable
A6V10210390_m_en_--
2018-08-29