15 ARK-1124 User Manual
Chapter 2 H/W Installation
2.4.4 USB 3.0 Connector
ARK-1124H supports four USB3.0 interfaces, which provide complete Plug & Play
and hot swapping for up to 127 external devices. The USB interface complies with
USB UHCI, Rev. 3.0.
Please refer to Table. 2.3 for its pin assignments. USB 3.0 connectors contain legacy
pins to interface to USB 2.0 devices, and a new set of pins for USB 3.0 connectivity
(both sets reside in the same connector).
Figure 2.11 USB Connector
Table 2.3: USB Connector Pin Definition
Pin Signal Name
1 +5V
2 D-_0
3 D+_0
4 GND
5 USB0_SSRX-
6 USB0_SSRX+
7 GND
8 USB0_SSTX-
9 USB0_SSTX+
10 +5V
11 D-_1
12 D+_1
13 GND
14 USB1_SSRX-
15 USB1_SSRX+
16 GND
17 USB1_SSTX-
18 USB1_SSTX+
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