USR IOT SERVICE AND SUPPORT

Connect serial of GPRS modules with serial of PC, open USR-GPRS-DTU software to set AT command.

1.Query whether GPRS module can identify SIM card

[Send] : AT+CIMI<CR>
[Receive] : 460001142971927
[Note] : obtain IMSI

The command is aimed to reading or identifying IMSI of SIM card

2.Query whether GPRS module can connect to the Internet

[Send] : AT+COPS?<CR>
[Receive] : +COPS:0,0 “China Mobile”
[Note] : query the network registration information

3.Query whether GPRS module can connect to the server

[Send] : AT+CINET?<CR>
[Receive] : +CINET:1,0,0,0
[Note] : query the current network connection status

4.Query signal intensity

[Send] : AT+CSQ<CR>
[Receive] : +CSQ: 18,99
[Note] : query the current signal intensity [Receive] : signal intensity,completing rate