### USB说明

USB接口位于设备前面板，均为USB3.0接口，采用标准A母座接口。USB接口管脚定义如下图所示:

![](https://resource.helplook.net/docker_production/3648ne/article/4XhdoV6D/67cf9a941d759.png)

| **引脚** | **定义** |
|---|---|
| 1 | VBUS |
| 2 | D- |
| 3 | D+ |
| 4 | GND |
| 5 | SSRX- |
| 6 | SSRX+ |
| 7 | GND |
| 8 | SSTX- |
| 9 | SSTX+ |