semaphore TBOX LT2-530 Series, User Manual, Page: 192 / 197

Version : 1.09 192
Examples of commands to check the availability of a GSM:
To activate the echo in the
window, type
ATE1 <ENTER>
(you don’t see what you type, it is
normal)
The modem answers with
OK
From now on you will see
what you type
To check if the SIM card is
ready, type
AT+CPIN? <ENTER>
The modem answers
CPIN: READY
To check the GSM operator
has been found, type
AT+COPS? <ENTER>
The modem answers with a
code or the name of the
operator
To check the quality of the
signal, type
AT+CSQ <ENTER>
The modem answers
+CSQ:xx,99
xx: must be between 20
and 31
To quit the Terminal mode, click button “Stop”