Operating Modes; Power Saving; Sleep Mode - Quectel EC25-AUX Hardware Design

NOTES
1)
1. PCM interface pins are multiplexing pins used for audio design on EC25 module and BT function on
FC20 module.
2. SD card, wireless connectivity and SGMII interfaces pins are not supported on ThreadX modules.
3. BT function is under development.

3.4. Operating Modes

The table below briefly summarizes the various operating modes referred 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. During this mode, the module can still receive paging message, SMS, voice
call and TCP/UDP data from the network normally.
In this mode, the power management unit shuts down the power supply. Software is
Power Down
not active. The serial interface is not accessible. Operating voltage (connected to
Mode
VBAT_RF and VBAT_BB) remains applied.

3.5. Power Saving

3.5.1. Sleep Mode
EC25 is able to reduce its current consumption to a minimum value during the sleep mode. The following
section describes power saving procedures of EC25 module.
EC25_Hardware_Design
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
EC25 Hardware Design
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