M10 Hardware Design
IO CONNECTOR
TXD
RXD
GND
PWRKEY
MODULE(DCE)
Serial port
TXD
RXD
GND
PWRKEY
Figure 18
: Connection of software upgrade
Note: The RTS PIN must be connected to the GND in the customer circuit when only the TXD
and RXD are used in the Serial Port communication.
CUSTOMER(DTE)
TXD
RXD
GND
MODULE(DCE)
Debug port
DBG_TXD
DBG_RXD
GND
Figure 19
: Connection of software debug
The serial port and the debug port don’t support the RS_232 level and it only supports the CMOS
level. You should add the level converter IC between the DCE and DTE. If you connect it to the
computer, Please refer to the following figure.
M10_HD_V1.00
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Quectel
