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2.2.8. USB Pin Headers
The mainboard has two USB pin header blocks that support up to four USB 2.0
ports. The pin header blocks are labeled as "H_USB1" and "H_USB2". The
pinout of the USB pin headers are shown below.
H_USB1
Pin
Signal
1
+5VSUS
3
USBH_P5-
5
USBH_P5+
7
Ground
9
—
Table 14: USB pin header pinouts
Figure 19: USB and USB Device pin headers
2.2.9. USB Device Port Pin Header
The mainboard can support one USB Device port. The pin header block is
labeled as "D_USB1". The pinout of the pin header is shown below
Table 15: USB Device pin header pinout
Pin
Signal
2
+5VSUS
4
USBH_P0-
6
USBH_P0+
8
Ground
10
Ground
Pin
Signal
1
+5VUSBD
3
NC
5
GND
EPIA-M900 User Manual
H_USB2
Pin
Signal
Pin
1
+5VSUS
2
3
USBH_P1-
4
5
USBH_P1+
6
7
Ground
8
9
—
10
Pin
Signal
2
USB_DP-
4
USB_DP+
6
—
Signal
+5VSUS
USBH_P2-
USBH_P2+
Ground
Ground
22
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