SAJ R5-5K-T2 - Debugging Instructions; Introduction of Human-computer Interface

R5 Series
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Figure5.17 RS232 pin
Pin Number
Description
Effect
1
+7V
Power source
2
RS-232 TX
Send data
3
RS-232 RX
Accept data
4
GND
Ground wire
Table 5.6 USB pin port definition
1.USB interface could be externally connected with eSolar GPRS/4G module, for
operation in details please refer to eSolar GPRS/4G module quick installation
guide.
2.USB interface could be externally connected with eSolar WiFi module, for
operation in details please refer to eSolar WiFi module quick installation guide.