W_Disable# Signal; Perst# Signal - Quectel EG25-G Hardware Design

3.8.3. W_DISABLE# Signal

EG25-G Mini PCIe provides a W_DISABLE# signal to disable or enable the RF function (excluding
GNSS). The W_DISABLE# pin is pulled up by default. Its control function for airplane mode is disabled by
default, and AT+QCFG="airplanecontrol",1 can be used to enable the function. Driving it low can make
the module enter airplane mode.
Table 12: Airplane Mode Controlled by Hardware Method
W_DISABLE#
High level
Low level
The RF function can also be enabled or disabled through AT commands AT+CFUN, and the details are as
follows.
Table 13: Airplane Mode Controlled by Software Method
AT+CFUN=?
0
1
4

3.8.4. PERST# Signal

The PERST# signal can be used to force a hardware reset on the card. The module can be reset by
driving the PERST# signal low for 150–460 ms and then releasing it. The PERST# signal is sensitive to
interference. The traces should be as short as possible and be surrounded with ground. The reset
scenario is illustrated in the following figure.
EG25-G_Mini_PCIe_Hardware_Design
RF Function Status
RF enabled
RF disabled
RF Function Status
RF and (U)SIM disabled
RF enabled
RF disabled
LTE Standard Module Series
EG25-G Mini PCIe Hardware Design
Module Operation Mode
Normal mode
Airplane mode
Module Operation Mode
Minimum functionality mode
Normal mode
Airplane mode
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