Operating Modes - Quectel LTE Standard Module Series Hardware Design

50 GND
51 RESERVED
52 3.3Vaux

NOTE
Keep all NC, reserved and unused pins unconnected.

3.1. Operating Modes

The following table briefly outlines the operating modes to be mentioned in the following chapters.
Table 5: Overview of Operating Modes
Mode Details
Idle
Normal
Operation
Talk/Data
Minimum
AT+CFUN command can set the module to a minimum functionality mode without
Functionality removing the power supply. In this case, both RF function and (U)SIM card will be
Mode invalid.
AT+CFUN command or W_DISABLE# pin can set the module to airplane mode. In
Airplane Mode
this case, RF function will be invalid.
In this mode, the current consumption of the module will be reduced to the minimal
Sleep Mode level. In this mode, the module can still receive paging message, SMS, voice call and
TCP/UDP data from the network normally.
EG21-G_Mini_PCIe_Hardware_Design
GND
PCM_SYNC
VCC_3V3
Software is active. The module has registered on the network, and it is
ready to send and receive data.
Network connection is ongoing. In this mode, the power consumption is
decided by network setting and data transfer rate.
LTE Standard Module Series
EG21-G Mini PCIe Hardware Design
Mini card ground
PCM frame
IO
synchronization
3.0V~3.6V, typically
PI
3.3V DC supply
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