Siemens FS20 - Page 164

Mounting and installation of the compact control panels
Card cage
5
164 | 354
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
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
X31 Connection terminals for module bus card 3
X32 Connection terminals for module bus card 3
X41 Connection terminals for module bus card 4
X42 Connection terminals for module bus card 4
X51 Connection terminals for module bus card 5
X52 Connection terminals for module bus card 5
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
X35 Connector for degraded mode indicator [AT] of module bus card 3
X45 Connector for degraded mode indicator [AT] of module bus card 4
X55 Connector for degraded mode indicator [AT] of module bus card 5
Internal bus X500 Connector for module bus output to other card cages
X501 Connector for module bus input
5.18.3.2 X9 supply
Pin Designation Description
1 VSYS+ System supply (DC 24 V)
2 VSYS+ System supply (DC 24 V)
3 VSYS+ System supply (DC 24 V)
4 VSYS- System supply (0 V)
5 VSYS- System supply (0 V)
6 VSYS- System supply (0 V)
Admissible cable cross-section: 0.5…2.5 mm²
4
3
6
5
X9
2
1
VSYS+
VSYS+
VSYS+
VSYS-
VSYS-
VSYS-