Quectel LTE OPEN EVB - Table 20: Com (Main) & Com (Uart1) Function Gpio Configuration

LTE Module Series
LTE OPEN EVB User Guide
LTE_OPEN_EVB_User_Guide 41 / 62
If COM (MAIN) and COM (UART1) functions are intended to be used, then please short the signals
illustrated in the figure and table below.
Figure 35: COM (MAIN) & COM (UART1) Function GPIO Configuration
Table 20: COM (MAIN) & COM (UART1) Function GPIO Configuration
4
NC
/
Not connected
5
RS232_GND
/
GND
6
NC
/
Not connected
7
RS232_RTS
DI
Request to send
8
RS232_CTS
DO
Clear to send
9
NC
/
Not connected
Pin No.
Pin Name
Operation
Pin No.
Pin Name
COM (MAIN) J0502
Pin 5 (J0202)
MAIN_TXD
Shorted to
Pin 6 (J0202)
GPIO_0
Pin 7 (J0202)
MAIN_RXD
Shorted to
Pin 8 (J0202)
GPIO_1
Pin 9 (J0202)
MAIN_RTS
Shorted to
Pin 10 (J0202)
GPIO_2
Pin 11 (J0202)
MAIN_CTS
Shorted to
Pin 12 (J0202)
GPIO_3