User's Manual

INDUSTRIAL 4G LTE CELLULAR ROUTER - UM V1.1.8
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Modbus Gateway
The Modbus gateway feature of router could convert the Modbus TCP to the Modbus RTU
protocol and send it to the connected RS-485 device. This feature depends on the COM3 setting,
you need to configure the serial setting in the System -> COM ports web UI and set up this
feature in the System -> Modbus web UI.
After above setup, the Modbus software can use the Modbus TCP protocol to control the Modbus
sensor/device.
Alarm Configuration
After you enable alarm, all the selected alarm input events would trigger selected alarm output.
(1) Alarm Input:
 The alarm would be triggered when DI1/DI2 show(s) high signal.
 The user’s phone number is in device contact phone book can send a SMS to device SIM
card to trigger alarm.
 VPN / WAN disconnect would trigger alarm no matter which interface is currently using.