LTE-A Module Series
EM12-G Hardware Design
EM12-G_Hardware_Design 37 / 62
Table 11: List of Control and Indicator Signals
“*” means under development.
3.10.1. W_DISABLE1# Signal
EM12-G provides a W_DISABLE1# signal to disable or enable airplane mode through hardware
operation. The W_DISABLE1# pin is pulled up by default. Driving it to low level will let the module enter
into airplane mode.
In airplane mode, the RF function will be disabled. The RF function can also be enabled or disabled
through software AT commands. The following table shows the RF function status of the module.
Table 12: RF Function Status
Pin No.
Pin Name
I/O
Power Domain
Description
10
WWAN_LED#
OD
3.3V
It is an open collector and active low
signal.
It is used to indicate the RF status of
the module.
23
WAKE_ON_WAN# OD
1.8V
A signal to wake up the host.
It is an open collector and active low
signal.
8
W_DISABLE1#
DI
1.8V/3.3V
Airplane mode control. Active low.
26
W_DISABLE2#*
DI 1.8V/3.3V
GNSS enable control. Active low.
25
DPR
DI
1.8V
Dynamic power reduction. High level
by default.
W_DISABLE1# Level
AT Commands
RF Function Status
High Level
AT+CFUN=1
Enabled
High Level
AT+CFUN=0
AT+CFUN=4
Disabled
Low Level
AT+CFUN=0
AT+CFUN=1
AT+CFUN=4
Disabled
NOTE