Hardware Information
7-33
SIMATIC Box PC 620 Manual
A5E00131465-03
PS Connection for Hard Disk
The power supply of the 3.5” hard disk is effected via this connection.
Pin No.
Designation
Description
Input / Output
1
P12V
+12 V
Output
2
GND
Ground
–
3
GND
Ground
–
4
P5V
+ 5V
Output
Connection for CPU Fan
The CPU fan is connected via this connection.
Pin No.
Designation
Description
Input / Output
1
GND
Ground
–
2
+12V
Switched power supply
Output
3
CPU FAN_CLK
Speed signal
Input
Connection for Device Fan
The device fan is connected via this connection.
Pin No.
Designation
Description
Input / Output
1
+12V
Switched power supply
Output
2
GND
Ground
–
Connection for Backup Battery
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.
Designation
Description
Input / Output
1
+
Positive pole
Input
2
–
Negative pole
–
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