Quectel BC660K-GL - Introduction

NB-IoT Module Series
BC660K-GL Log Capture Guide
BC660K-GL_Log_Capture_Guide 9 / 24
Figure 1: BC660K-GL-TE-B
A brief introduction to BC660K-GL-TE-B is given below:
Table 1: Introduction to Key Components of BC660K-GL-TE-B
SN
Components
Description
1
RESET button
Resets the module.
2
BOOT button
Downloads the firmware.
Before firmware downloading, it is necessary to press
BOOT first and hold it, and press RESET for a while, and
then release the RESET and BOOT buttons in turn to
trigger the firmware downloading.
3
PSM_EINT button
Wakes up the module from sleep.
4
UART switch
Controls the main serial port to connect the module or the
external MCU.
5
Wire jumper cap
Connects the USB port on the TE-B to the module. If the
USB port is not connected with the module, when USB is
powered, the USIM card cannot be powered.
6
Micro USB port
Converts the UART port to 4 ports through a USB-UART
bridge: one for AT command communication; one for log