R5 Series
Figure5.17 RS232 pin
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.