Siemens FS20 - Page 168

Mounting and installation of the compact control panels
Module bus cards
5
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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
Element Des. Function
Slots X1 Connector strip for module bus card 1
X2 Connector strip for module bus card 2
Connection terminals X9 System supply connection
X11 Connection terminals for module bus card 1
X12 Connection terminals for module bus card 1
X21 Connection terminals for module bus card 2
X22 Connection terminals for module bus card 2
Connector
Degraded mode
X15
Connector for degraded mode indicator [AT] of module bus
card 1
X25
Connector for degraded mode indicator [AT] of module bus
card 2
Internal bus X501 Connector for module bus input