Quectel LTE Standard Module Series - Pin Description

LTE Standard Module Series
EG21-G Mini PCIe Hardware Design
EG21-G_Mini_PCIe_Hardware_Design 15 / 54
3.2. Pin Description
The following tables show the pin definition and description of the 52 pins on EG21-G Mini PCIe.
Table 3: I/O Parameters Definition
Table 4: Pin Description
Type
Description
DI
Digital Input
DO
Digital Output
IO
Bidirectional
OC
Open Collector
PI
Power Input
PO
Power Output
Pin No.
Mini PCI Express
Standard Name
EG21-G Mini PCIe
Pin Name
I/O
Description
Comment
1
WAKE#
WAKE#
OC
Output signal used to
wake up the host.
2
3.3Vaux
VCC_3V3
PI
3.0V~3.6V, typically
3.3V DC supply
3
COEX1
RESERVED
DI
Reserved
It is prohibited to
be pulled up
high before
startup.
4
GND
GND
Mini card ground
5
COEX2
RESERVED
DO
Reserved
It is prohibited to
be pulled up
high before
startup.
6
1.5V
NC
Not connected
7
CLKREQ#
RESERVED
Reserved
8
UIM_PWR
USIM_VDD
PO
Power supply for the