Siemens SIMATIC PC 670 Equipment Manual page 163

Release 04/02
SV connection for hard disk
The power supply of the 3.5" hard disk is effected via this connection.
Pin No.
1
2
3
4
Connection for CPU fan
The CPU fan is connected via this connection.
Pin No.
1
2
3
Connection for device fan
The device fan is connected via this connection.
Pin No.
1
2
Connection for buffer battery
The battery for the standby supply to the CMOS RAM is connected to this
connection. The battery used is a 3.6 V lithium battery with a capacity of 750 mAh.
Pin No.
1
2
Panel PC 670 Computing Unit, Equipment Manual
Short Name Description
P12V +12 V
GND Chassis ground
GND Chassis ground
P5V +5 V
Short Name Description
GND Chassis ground
+12V Switched power supply
CPU FAN_CLK Speed signal
Short Name Description
+12V Switched power supply
GND Chassis ground
Short Name Description
+12V Switched power supply
GND Chassis ground
Hardware Information
Input / Output
Output
–
–
Output
Input / Output
–
Output
Input
Input / Output
Output
–
Input / Output
Output
–
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