Siemens FS720 - Pin Assignments

Installing, exchanging and connecting modules
Installing the fiber optic cable network module
7
134 | 248
Building Technologies
A6V10210390_m_en_
--
Fire Safety
2018
-
08
-
29
7.13.3 Pin assignments
7.13.3.1 Power A / B sockets and 'fault' relay contact
The 5-pin connector for the power supply is supplied with the fiber optic cable
network module.
Pin Designation Description
1 +DC 9...30 V Supply input +
2 -DC 9...30 V Supply input -
3 COM Fault relay: Common contact (DC 24 V)
4 NO NO: Normally open
1
5 NC NC: Normally closed
2
1
Relay contact open in normal operation
2
Relay contact closed in normal operation
Permissible conductor cross-section: 0.14…1.5 mm²
● The power supply need not be monitored and made redundant when installing
in the fire control panel.
● For remote installation, the power must be supplied by a power supply tested in
accordance with EN54-4 (e.g., FP120), which must be shielded and made
redundant.
● Relay contact opens in the event of an error. The display indicates the error.
COM and NC (pin 5) are connected.
Power A (B)
5
2
2
1
3
4
9..30 VDC+
9..30 VDC-
NO
COM
NC