MEIG SLM770A - Power Saving; Sleep Mode; Flight Mode

SLM770A Module Hardware Design Manual
MeiG Smart Technology Co., Ltd 77/77
FDD-LTE mode
FDD-LTE IDLE
The module is ready for FDD-LTE data transfer. No data
sending or receiving at this time. The power consumption is
decided by network setting.
FDD-LTE DATA
FDD LTE data transfer is ongoing; the power consumption is
decided by network setting (For example, power control level),
data uplink and downlink rate and related settings of FDD LTE.
Minimum
function mode
AT+CFUN=0 command can set the module to enter into a minimum functionality
mode without removing the power supply of VBAT. At this time RF is closed. Use
AT+CFUN=1command the module reopens sending and receiving service and
registers network to the normal function mode.
Flight mode
W_DISABLE_N pin can set the module to enter into flight mode. In this mode RF
function will be invalid.
Sleep mode
In this mode, the consumption of the module will be reduced to the minimum
level. During the mode, the module can still receive paging message, SMS, voice
call and TCP/UDP data from the network normally.
Shutdown mode
VBAT low voltage shutdown. In this mode, the PMU stops supplying baseband
(BB) and radio frequency (RF) power, the software stops working, and the serial
port is disconnected.
3.5 Power Saving
3.5.1 Sleep Mode
In sleep mode, the power consumption of the module is reduced to an extremely low level.
3.5.2 Flight Mode
When module into flight mode, RF function cannot be used, and all associated with RF of the AT
command is inaccessible. The module can be put into flight mode through hardware interface and
command control mode.
3.5.2.1 Hardware I/O interface controls flight mode
The W_DISABLE_N pin (PIN4) of SLM770A gives the module a low level signal. The module enters into
flight mode and RF sending and receiving unit stops working. Pull up PIN4 and the module will enter into
normal mode. The module control signal level supports 1.8V logic level.