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PS Connection for Hard Disk (X25)
The power supply of the 3.5" hard disk is effected via this connection.
Pin no.
1
2
3
4
Connection for CPU Fan and Device Fan (X28)
The CPU fan and the device fan are connected via these two connections.
Pin no.
1
2
Connection for Backup Battery (X42)
The battery for the standby supply to the CMOS RAM is connected to this
connection. A 3.6 V lithium battery with a capacity of 750 mAh is used.
Pin no.
1
2
SIMATIC Box PC 620 Manual
C79000-G7076-C639-04
Signal Name
P12V
GND
GND
P5V
Signal Name
12V thermostat-
controlled
0 V fan, switched
Signal Name
+
-
Hardware Information
Remark
+12 V
GND
GND
+5 V
Remark
Remark
Positive pole
Negative pole
8-37

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