Vantron
| Embedded in your success, Embedded in your better life
World-leading provider of embedded/IoT products and solutions
VT-SBC-C3558R | User Manual 37
1.
Open ttyUSB2 (AT interface) via minicom and confirm if the module is in ECM mode;
#
minicom -D /dev/ttyUSB2 -b 115200
Welcome to minicom 2.7.1
OPTIONS: I18n
Compiled on Mar 23 2023, 12:01:16.
Port /dev/ttyUSB2, 09:47:34
AT+GTUSBMODE?
+GTUSBMODE: 18
OK
2.
If the value of the USBMODE returned is not 18 as shown above, run the following
command to change the value and reboot the Board;
# minicom -D /dev/ttyUSB2 -b 115200
Welcome to minicom 2.7.1
OPTIONS: I18n
Compiled on Mar 23 2023, 12:01:16.
Port /dev/ttyUSB2, 09:47:34
AT+GTUSBMODE=
18
//
set the value of USBMODE to 18
OK
# reboot
3.
Dail-up for the first time (not necessary for non-first-time use);
# minicom -D /dev/ttyUSB2 -b 115200
Welcome to minicom 2.7.1
OPTIONS: I18n
Compiled on Mar 23 2023, 12:01:16.
Port /dev/ttyUSB2, 09:47:34
Press CTRL-A Z for help on special keys
AT
OK
AT+CPIN?
//
check if the SIM card is inserted
+CPIN:
READY
