4G_2G DTU Products Function
- 27 -
Figure 26.
Serial Port Modbus Function
1.11. NTP Function
When the IOTBridge function is enabled, the module can obtain the NTP time. Through the
AT+NTIME command, the user device can obtain the real time.
1.12. Virtual Serial Port Function
The virtual serial port function requires the device to enable the IOTBridge service, which requires
a certain amount of traffic. The virtual serial port supports the serial port parameter adaptive function
(the module baud rate changes with the change of the virtual serial port parameters, and there is no
need to manually modify the module working parameters). Virtual COM will use one socket channel,
set it to either SOCK A, SOCK B or SOCK C.
