Siemens SIMATIC Rack PC 840 V2 Operating Instructions Manual page 110

Detailed descriptions
16.1 Motherboard
Pin assignment of the internal USB port connector, X2033
Pin No. Abbreviations
1 VCC
2 Key
3 - Data
4 Reserved
5 + Data
6 Reserved
7 GND
8 Reserved
9 GND
10 Key
Note
For detailed information on the pin assignments of the interfaces, please contact Costumer
Support or the Repair Center.
16-12
Meaning
+ 5 V (fused)
–
Data channel
–
Data channel
Chassis ground
Chassis ground
–
Operating Instructions, Edition 05/2006, A5E00248055-04
Input /Output
Output
–
Input /Output
–
Input /Output
–
–
–
SIMATIC Rack PC 840 V2