Quectel UMTS&LTE EVB - Communication Via USB or UART Interface

UMTS/HSPA/LTE Module Series
UMTS&LTE EVB User Guide
UMTS&LTE_EVB_User_Guide Confidential / Released 39 / 44
Table 13: Indication of D206 and D208
5.2. Communication Via USB or UART Interface
5.2.1. Communication via USB Interface
1. Power on the UMTS&LTE module according to the procedures mentioned in Chapter 5.1.
2. Connect the EVB and the PC with USB cable through USB interface, and then run the driver disk on
PC to install the USB driver. For details about USB driver installation, please refer to document [1].
The USB port numbers can be viewed through the PC Device Manager, shown as following figure.
Figure 32: USB Ports
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 AT Port which is shown in above figure) and set correct “Baudrate” (such
as 115,200bps). For more details about QCOM tool usage and configuration, please refer to
document [6].
Status
Indication LEDs
State
Network Status
D206
NET_STATUS
Flicker slowly
(200ms ON/1800ms OFF)
Network searching
Flicker slowly
(1800ms ON/200ms OFF)
Idle mode
Flicker slowly
(125ms ON/125ms OFF)
Data is being transferred over 2G/3G/4G networks
Always ON
Voice calling
D208
NET_MODE
Always ON
Registered on 3G network successfully (UC20/UGxx)
Registered on 4G network successfully (EC2x/EG95)
Always OFF
Others
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