Siemens FS720 Mounting & Installation page 76

Mounting and installing extinguishing control panels
6
Extinguishing terminal installation and wiring
6.4.2.3 External power supply, connector X2
76 | 248
Building Technologies
Fire Safety
If the extinguishing terminal is supplied with power by an external power supply,
ground fault monitoring must be switched on.
Connector X2, supply
PIN Designation
1 VSYS_POS
2 VSYS_POS
3 VSYS_NEG
4 VSYS_NEG
5 #MAINS
6 #BATTERY
7 -3SRC
8 +3SRC
FP2015 X2
#BATTERY
#MAINS
VSYS +
+
VSYS - -
BATT + F3 +
-
BATT -
External housing
Figure 41: Wiring diagram of an external terminal with external power supply
Description
Supply input V+
Supply output V+ (looped through)
Supply input V-
Supply output V- (looped through)
Network monitoring connection
Battery monitoring connector
Supply input V-, 3rd source of voltage
Supply input V+, 3rd source of voltage
8
7
6
5
4
3
2
1
2x 12 V
Extinguishing terminal
VSYS_POS
1 +
VSYS_POS
2
+
VSYS_NEG
-
3
-
VSYS_NEG
4
5 #MAINS
#BATTERY
6
7 -3SRC
-
+
8
+3SRC
1x 9 V
A6V10210390_m_en_--
2018-08-29
X2