Quectel UMTS&LTE EVB - Communication Via UART Interface

UMTS/HSPA/LTE Module Series
UMTS&LTE EVB User Guide
UMTS&LTE_EVB_User_Guide Confidential / Released 40 / 44
Figure 33: QCOM Window Configuration When Connecting USB Port
5.2.2. Communication via UART Interface
1. Run the driver disk on PC to install the USB-to-RS232 driver.
2. Connect the Main UART interface to PC with the USB-to-UART converter cable (USB-to-RS232
cable), and the USB serial port number can be viewed through the PC Device Manager, shown as
the following figure.
Figure 34: USB Serial Port
3. Install and then use the QCOM tool provided by Quectel to realize the communication between the
UMTS&LTE module and the PC. The following figure shows the QCOM window configuration: select
correct “COM port” (USB Serial Port) and set correct “Baudrate” (such as 115,200bps). For more
details about QCOM tool usage and configuration, please refer to document [6].
Figure 35: QCOM Window Configuration When Connecting USB Serial Port
Quectel
Confidential