13
⑤ USB3.0 Type-A interface
⑥ RJ45 Gigabit Ethernet interface
⑦ HDMI audio and video output interface, which can be connected to external
HD display
⑧ Wi-Fi antenna external connector (SMA)
⑨ GPIO control interface (see Table 3.2 for the definition)
⑩ 4G antenna external connector (SMA)
⑪
Hardware reset button
Figure 3.2 GPIO Interfaces
Table 3.2 Definitions of I/O Port Pins
Pin
Signal Definition
Remarks
1
IO_INPUT1
Isolated input signal 1
VIH: 3~12V
VIL:0~0.8V
2
IO_INPUT1
Isolated input signal 1
3
IO_INPUT2
Isolated input signal 2
4
IO_INPUT2
Isolated input signal 2
5
IO_INPUT3
Isolated input signal 3
6
IO_INPUT3
Isolated input signal 3
7
IO_INPUT4
Isolated input signal 4
8
IO_INPUT4
Isolated input signal 4
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