Hardware Information
Release 11/02
7-25
SIMATIC Panel PC 870 Computing Unit, Equipment Manual
Assignment of the CPU power supply connector, X41
Pin No.
Short
Name
Meaning
Input / Output
1
GND
Ground
–
2
+12 V
Switched power supply
Output
3
CPU FAN_CLK
Clock signal
Input
Assignment of the main fan power supply connector, X42
Pin No.
Short
Name
Meaning
Input / Output
1
GND
Ground
–
2
+12 V
Switched power supply
Output
3
PG1 FAN_CLK
Clock signal
Input
Backup battery connector, X49
The CMOS-RAM backup battery is connected to this connector. A 3.6 V lithium
battery with a capacity of 750 mAh is used.
Pin No.
Short
Name
Meaning
Input / Output
1
+
Plus pole
Input
2
–
Minus pole
–
Summary of Contents for Simatic PC Panel PC 870
Page 4: ...Chapter For your notes ...
Page 12: ...Contents Release 11 02 xii SIMATIC Panel PC 870 Computing Unit Equipment Manual ...
Page 94: ...Fault Diagnosis Release 11 02 6 10 SIMATIC Panel PC 870 Computing Unit Equipment Manual ...
Page 130: ...Hardware Information Release 11 02 7 36 SIMATIC Panel PC 870 Computing Unit Equipment Manual ...
Page 154: ...Index Release 11 02 Index 4 SIMATIC Panel PC 870 Computing Unit Equipment Manual ...