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User’s Manual
3.1.4.3. Use Instructions of USB TYPE-A
If you want to use the USB TYPE-A function of the docking station, you need to
ensure that the tablet and the docking station are in the following states:
1. The DC power supply of the docking station is connected
2. docking station Switch is closed circuit state
3. Disconnect the Type-C wiring of the device
3.2. Hardware Function
3.2.1. Docking station
When placing the device on the docking station, it will be better to disconnect the DC
power of the docking station first, and then connect the DC power of the docking
station after installation.
3.2.2.The usage of the docking station Switch
1
Open circuit state: shut off the docking station 5V power to
the tablet
2
Closed circuit state: Allow the docking station supply 5V
power to the tablet
3.2.3.Using Serial Port Demo App
3.2.3.1. Serial Port Test Software Interface Description:
Serial Port ID: COM1, COM2
Correspondence between RS232 tail line and device node.
1. COM1=/dev/ttyS0.
2. COM2=/dev/ttyS1.
