Siemens FS20 - Page 157

Mounting and installation of the compact control panels
Installing an Ethernet switch (modular) FN2012
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Building Technologies
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Fire Safety
2016
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5.16.6.2 'FAULT' connector strip
The fault output is a potential-free relay contact which, depending on the
configuration, can be used to report fault conditions by interrupting the contact. If
the FN2012 is switched off, the relay contact is deactivated (opened).
The following error messages can be configured by the web interface:
● 'Fatal fault': Ethernet Switch (modular) malfunction
● 'Ring fault': Ring faults are only indicated if the Ethernet switch (modular) has
assumed the 'Redundancy Manager' function
● 'Ring port fault': 'Link down' state on a ring port
Pin Designation Description
F1 OUT
Potential-free relay contact 1 (common, normally
open)
F2 OUT
Potential-free relay contact 2 (common, normally
open)
F3 IN Not connected
F4 IN Not connected
Admissible cable cross-section: 0.2…2.5 mm²
F1
F2
F3
F4
FAULT
Terminal Plug
Connector
Cover cap
(open)
F4 F3 F2 F1
IN OUT