User's Manual

INDUSTRIAL 4G LTE CELLULAR ROUTER - UM V1.1.8
225
Note 1:
 There is a reference for Modbus poll software to download and install on PC.
http://www.tucows.com/preview/502459/Modbus-Poll
Note 2:
 You can purchase a meter of DC voltage and current supporting Modbus protocol with RS-
485 serial for test and connection to COM Port 3.