Quectel RM520N-GL - Page 23

5G Module Series
RM520N-GL_Hardware_Design 22 / 84
Table 4: Definition of I/O Parameters
The following table shows the pin definition and description of the module.
Table 5: Pin Description
Type
Description
AI
Analog Input
AO
Analog Output
AIO
Analog Input/Output
DI
Digital Input
DO
Digital Output
DIO
Digital Input/Output
OD
Open Drain
PI
Power Input
PO
Power Output
PU
Pull Up
PD
Pull Down
Pin
No.
Pin Name
I/O
Description
DC
Characteristic
Comment
1
CONFIG_3
DO
Not connected internally
2
VCC
PI
Power supply for the
module
Vmin = 3.135 V
Vnom = 3.7 V
Vmax = 4.4 V
3
GND
Ground
4
VCC
PI
Power supply for the
module
Vmin = 3.135 V
Vnom = 3.7 V
Vmax = 4.4 V
5
GND
Ground
6
FULL_CARD_
POWER_OFF#
DI, PD
Turn on/off the module.
High level: Turn on
Low level: Turn off
V
IH
max = 4.4 V
V
IH
min = 1.19 V
V
IL
max = 0.2 V
Internally pulled
down with a
100 kΩ resistor.