Detailed descriptions
16.2 Bus board
SIMATIC Rack PC 840 V2
Operating Instructions, Edition 05/2006, A5E00248055-04
16-15
16.2.3 Pin assignment of the bus board connectors
Pin assignment Auxiliary ATX
Pin No. Abbreviation Meaning Input /Output
1, 2, 3 GND Chassis ground
4, 5 + 3.3 V + 3.3 V
6 + 5 V + 5 V
FAN connector pinout
Pin No. Abbreviation Meaning Input /Output
1 GND Chassis ground -
2 + 12 V Power supply Output
3 NC - -
Note
For detailed information on the pin assignments of the interfaces, please contact Costumer
Support or the Repair Center.