Siemens FS720 Mounting & Installation page 74

Mounting and installing extinguishing control panels
6
Extinguishing terminal installation and wiring
6.4.2.2 Secondary extinguishing terminal, connections X1, X2
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Building Technologies
Fire Safety
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
Connector X1, RS485 connection
PIN Designation
1 DATA_A
2 DATA_A
3 DATA_B
4 DATA_B
Admissible cable cross-section: 1.5... 1.5 mm²
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
Description
Terminal line +
Terminal line + (looped through)
Terminal line -
Terminal line - (looped through)
A6V10210390_m_en_--
2018-08-29