1.Plug in the SIM card. Connect the 5V adapter , serial cable and the antenna to the module. The work LED is blinking, that indicate the module is working. The GPRS LED is on, that indicate the module has linked to the GPRS network.
Figure 1 connection
2.Open the software USR-GM3-V1.1.3.61.
Figure 2 Setting software
3.Choose the COM port ,Baudrate and serial port parameter. Open the serial port.
4.Configure the APN setting.
Figure 4
5.Click the get all Parameters. You can see the parameters in the red block.
Figure 5
6.Configure module parameters. We use network transmission mode. And use the test.usr.cn:2317.(This website might be not available for foreign country.). After we configure the module, click the set save all parameters. then restart module
Figure 6
7.Our test server will return the same data which you send. We send the www.usriot.com. And the server return the same data.
Figure 7