GSM/GPRS/GNSS Module Series
MC90-TE-A User Guide
MC90-TE-A_User_Guide 15 / 21
Figure 8: S101/S102 Switch Status on UART3 When Communicating with GSM Part
(2) Open the QCOM (AT command window) on PC. Set appropriate Baud Rate (such as 115200bps) and
COM number which can be checked by the Device Manager on PC.
(3) Connect the antenna to the GSM_ANT on MC90-TE-A with an RF cable.
(4) Insert an (U)SIM card into the (U)SIM1 card connector.
(5) Insert earphone or handset into audio interface.
(6) For power-on procedures, please refer to
document [4]
.
(7) After waiting for 2~3 seconds, customers
should first input “AT” or “at” string once or more until
receiving “OK” from the module in the HyperTerminal.
The module is set to autobauding mode in default configuration. This operation is to synchronize the
baud rate between the computer and the module.
(8) Input AT command and the corresponding functions will be executed.
5.3. Communicate with GNSS Part of the Module
5.3.1. Use Main UART (All-in-one Solution)
(1) Turn the S101 and S102 switch to
ON
state on MC90-TE-A, and then connect the main UART of EVB
to PC’s USB port with the USB to UART converter cable. This is the recommended method.
