Quectel LTE Standard Module Series User Manual

LTE Module Series
EG21-G Hardware Design
EG21-G_Hardware_Design 19 / 100
56, 72,
85~112
Turn on/off
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
PWRKEY
21
DI
Turn on/off the
module
V
IH
max=2.1V
V
IH
min=1.3V
V
IL
max=0.5V
The output voltage is
0.8V because of the
diode drop in the
Qualcomm chipset.
RESET_N
20
DI
Reset the module
V
IH
max=2.1V
V
IH
min=1.3V
V
IL
max=0.5V
If unused, keep it
open.
Status Indication
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
STATUS
61
OD
Indicate the module
operating status
The drive current
should be less than
0.9mA.
An external pull-up
resistor is required. If
unused, keep it open.
NET_MODE
5
DO
Indicate the module
network registration
mode
V
OH
min=1.35V
V
OL
max=0.45V
1.8V power domain.
Cannot be pulled up
before startup.
If unused, keep it
open.
NET_
STATUS
6
DO
Indicate the module
network activity
status
V
OH
min=1.35V
V
OL
max=0.45V
1.8V power domain.
If unused, keep it
open.
USB Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
USB_VBUS
71
PI
USB power supply,
used for USB
detection
Vmax=5.25V
Vmin=3.0V
Vnorm=5.0V
Typical: 5.0V
If unused, keep it
open.
USB_DP
69
IO
USB differential data
bus (+)
Compliant with USB
2.0 standard
specification.
Require differential
impedance of 90Ω.
If unused, keep it
open.
USB_DM
70
IO
USB differential data
bus (-)
Compliant with USB
2.0 standard
specification.
Require differential
impedance of 90Ω.
If unused, keep it
open.
(U)SIM Interface

Quectel LTE Standard Module Series Specifications

General

Brand	Quectel
Model	LTE Standard Module Series
Category	Wireless modules
Language	English