Pin Assignments - Siemens FS720 Mounting & Installation

Installing, exchanging and connecting modules
7
Installing the fiber optic cable network module

7.13.3 Pin assignments

7.13.3.1 Power A / B sockets and 'fault' relay contact
134 | 248
Building Technologies
Fire Safety
The 5-pin connector for the power supply is supplied with the fiber optic cable
network module.
Pin Designation
1 +DC 9...30 V
2 -DC 9...30 V
3 COM
4 NO
5 NC
Relay contact open in normal operation
1
Relay contact closed in normal operation
2
Permissible conductor cross-section: 0.14...1.5 mm²
Power A (B)
9..30 VDC+
9..30 VDC-
COM
NO
NC
● 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.
Description
Supply input +
Supply input -
Fault relay: Common contact (DC 24 V)
NO: Normally open
1
NC: Normally closed
2
1
2
3
4 2
5
A6V10210390_m_en_--
2018-08-29