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Siemens PANEL PC 877 User Manual

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Detailed descriptions 
 
17.1 Motherboard 
SIMATIC Panel PC 877 
Operating instructions, Release 07/2006, A5E00877780-01 
17-23
 
Pinout of the internal USB interface connector, X2033 
 
Pin No. 
Abbreviation 
Meaning 
1 
VCC 3.3V 
+3.3V, fused 
2 
VCC 5V 
+ 5 V, fused 
3 
USB3 
USB3_M 
4 
USB5 
USB5_M 
5 
USB3 
USB3_P 
6 
USB5 
USB5_P 
7 
GND 
Ground 
8 
GND 
Ground 
9 
GND 
Ground 
10 
GND 
Ground 
Pinout of the USB 2.0 interface, X2034 
 
Pin No. 
Abbreviation 
Meaning 
1 
VCC 
+ 5 V, fused  
2 
USB5 
USB5_M 
3 
USB5 
USB5_P 
4 
GND 
Ground 
S1 
S 
Shielding 
S2 
S1 
Shielding 
 
 
 
Note 
For detailed information on the pin assignments of the interfaces, please contact Costumer 
Support or the Repair Center.