USR-GPRS232-DTU USR MANUAL
Page 37 of 38
Jinan USR IOT Technology Limited
Modules can not be configured through the serial port parameters
First make sure the module is energized and normal work, and secondly to determine the module and the computer
to open the serial port parameters match the serial parameters (baud rate parameter configuration module factory
115200, no parity, 8 data bits, 1 stop bit); check the serial cable is normal, whether serial port can be used normally.
I set up the company's software is currently not open correctly in some systems, the serial port, use the serial
debugging assistant to send AT commands to test whether it is normal.
You can not configure the module parameters via SMS
Check module plug the phone card is plugged in, the module is powered on, the signal is normal; check the phone
card supports SMS.