Contec VPC-3000, User Manual, Page: 36 / 125

3
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Hardware setup
User’s Manual
29
■Internal USB connector : J16,J20,J21
Connectors for connecting the USB connector on the front panel of the case with an USB extension
bracket.
For the VPC-3000 series, J21 is already connected to the USB connector on the front panel by a special
cable.
Both J16 and J20 connectors connect nothing in factory setting.
Figure 3.8 internal USB connector
Table 3.12 J16,J20,J21
Pin Signal Pin Signal
1 +5V 6 USB +
2 +5V 7 Ground
3 USB - 8 Ground
4 USB - 9 Key (No Pin)
5 USB + 10 N/C
1 2
9 10
1 2
9
10
J16
J20
1 2
9
10
J21