Quectel EG915U-EU - Page 19

LTE Standard Module Series
EG915U-EU_Hardware_Design 18 / 81
when in use.
If unused, keep it
open.
Turn On/Off
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
PWRKEY
15
DI
Turn on/off the module
V
IL
max = 0.5 V
VBAT power
domain.
RESET_N
17
DI
Reset the module
VBAT power
domain.
If unused, keep it
open.
PSM_EINT*
96
DI
External interrupt pin;
Wake up the module
from PSM
If unused, keep it
open.
Indication Interface
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
STATUS
20
DO
Indicate the module's
operation status
V
OH
min = 1.35 V
V
OL
max = 0.45 V
1.8 V power
domain.
If unused, keep
it open
NET_STATUS
21
DO
Indicate the module's
network activity status
V
OH
min = 1.35 V
V
OL
max = 0.45 V
1.8 V power
domain.
If unused, keep it
open.
PSM_IND*
1
DO
Indicate the module’s
power saving mode
USB Interface
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
USB_VBUS
8
AI
USB connection detect
Vmax = 5.25 V
Vmin = 3.5 V
Vnom = 5.0 V
Typical: 5.0 V
If unused, keep it
open.
USB_DP
9
AIO
USB differential data (+)
USB 2.0
compliant.
Require
differential
impedance of 90
Ω.
If unused, keep it
open.
USB_DM
10
AIO
USB differential data (-)