Siemens FS20 - Pin Assignments

Mounting and installation of the compact control panels
Installing a
n Ethernet switch (modular) FN2012
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Building Technologies
008851_s_en_
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Fire Safety
2016
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01
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27
5.16.6 Pin assignments
5.16.6.1 'POWER' connector strip
The 'POWER' connector is only used if power cannot be supplied via the MoNet
bus or PoE. Generally, this is only the case if the Ethernet switch (modular) is
installed remotely in another device. Power must be supplied via a DC 24 V power
supply unit with a regulated and power-limited output that has been listed for
signaling fire.
Designation Description
A+ Supply input 1 (+DC 24 V)
A- Common supply input 1 (DC 0 V)
B- Not connected
B+ Not connected
Admissible cable cross-section: 0.2…2.5 mm²
A+A-B-B+
POWER
+24V
GND
Terminal Plug
Connector FN2012
Supply input