Siemens FS20 - Page 162

Mounting and installation of the compact control panels
Card
cage
5
162 | 354
Building Technologies
008851_s_en_
--
Fire Safety
2016
-
01
-
27
Element Des. Function
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
5.18.2.2 X9 supply
Pin Designation Description
1 VSYS+ System supply (+)
2 VSYS+ System supply (+)
3 VSYS+ System supply (+)
4 VSYS- System supply (–)
5 VSYS- System supply (–)
6 VSYS- System supply (–)
Admissible cable cross-section: 0.2…2.5 mm²
5.18.2.3 X11…X22 connection terminals for the module bus cards
The module bus card determines the PIN assignment of the four connectors. You
will find the pin assignments in the description of the corresponding module card.
The assignment of the connector is:
● Connections of module bus card 1 are on connectors X11 and X12
● Connections of module bus card 2 are on connectors X21 and X22
4
3
6
5
X9
2
1
VSYS+
VSYS+
VSYS+
VSYS-
VSYS-
VSYS-