Quectel BG95 Manual page 18

28 UART3_RXD
29 VDD_EXT
30 DTR
31 GND
32~33 VBAT_BB
34 RXD
35 TXD
36 CTS
37 RTS
38 DCD
39 RI
40 I2C_SCL
BG95&BG96_Compatible_Design
Receive data.
DI
1.8V power domain.
Provide 1.8V for
PO
external circuit
Data terminal ready.
DI Sleep mode control.
1.8V power domain.
/ Ground
Power supply for the
module's baseband
PI
part:
3.3V~4.3V, typ. 3.8V
Receive data.
DI
1.8V power domain.
Transmit data.
DO
1.8V power domain.
Clear to send.
DO
1.8V power domain.
Request to send.
DI
1.8V power domain.
Data carrier detection.
DO
1.8V power domain.
Ring indication.
DO
1.8V power domain.
OD I2C serial clock. Used
LPWA Module Series
BG95&BG96 Compatible Design
GNSS_RXD DI
VDD_EXT PO
MAIN_DTR DI
GND /
VBAT_BB PI
MAIN_RXD DI
MAIN_TXD DO
MAIN_CTS DO
MAIN_RTS DI
MAIN_DCD DO
MAIN_RI DO
I2C_SCL OD
Receive data.
1.8V power
domain.
Provide 1.8V for
external circuit
Data terminal
ready.
Sleep mode
control.
1.8V power
domain.
Ground
Power supply for
module's baseband
part:
BG95-M1/-M2/-N1:
5)
2.6V ~4.8V, Typ.
3.3V
BG95-M3/-M5:
3.3V~4.3V, Typ.
3.8V
BG95-M4:
Typ. 3.8V
Receive data.
1.8V power
domain.
Transmit data.
1.8V power
domain.
Clear to send.
1.8V power
domain.
Request to send.
1.8V power
domain.
Data carrier
detection.
1.8V power
domain.
Ring indication.
1.8V power
domain.
I2C serial clock.
17 / 47