LTE Standard Module Series
EG25-GL_Hardware_Design 27 / 96
2.6 EVB Kit
To help you develop applications with the module, Quectel supplies an evaluation board (UMTS<E
EVB) with accessories to control or test the module. For more details, see
document [1]
the module in the low
level.
If unused, keep it
open.
W_DISABLE# 4
DI
Airplane mode control VDD_EXT
1.8 V power domain.
Pull-up by default.
At low voltage level,
module can enter into
airplane mode.
If unused, keep it
open.
AP_READY
2
DI
Application processor
ready
VDD_EXT
1.8 V power domain.
If unused, keep it
open.
USB_BOOT
115
DI
Force the module into
emergency download
mode
VDD_EXT
1.8 V power domain.
Cannot be pulled up
before startup.
It is recommended to
reserve test point.
RESERVED Pins
Pin Name
Pin No.
Comment
RESERVED
3, 18, 43, 55, 73
–84, 113, 114, 116, 117, 140–144
Keep these pins
unconnected.