Quectel EC25 Mini PCIe - Operating Modes; Power Saving; Sleep Mode

LTE Standard Module Series
EC25 Mini PCIe Hardware Design
EC25_Mini_PCIe_Hardware_Design 22 / 79
1.
1)
The digital audio (PCM) function is only supported on Telematics version.
2. Keep all NC, reserved and unused pins unconnected.
3.3. 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
Normal
Operation
Idle
Software is active. The module has registered on the network, and it is
ready to send and receive data.
Talk/Data
Network connection is ongoing. In this mode, the power consumption is
decided by network setting and data transfer rate.
Minimum
Functionality
Mode
AT+CFUN command can set the module to a minimum functionality mode without
removing the power supply. In this case, both RF function and (U)SIM card will be
invalid.
Airplane Mode
AT+CFUN command or W_DISABLE# pin can set the module to airplane mode. In
this case, RF function will be invalid.
Sleep Mode
In this mode, the current consumption of the module will be reduced to the minimal
level. In this mode, the module can still receive paging message, SMS, voice call and
TCP/UDP data from the network normally.
3.4. Power Saving
3.4.1. Sleep Mode
EC25 Mini PCIe is able to reduce its current consumption to a minimum value in sleep mode. There are
three preconditions must be met to make the module enter sleep mode.
50
GND
GND
Mini card ground
51
RESERVED
PCM_SYNC
1)
IO
PCM frame
synchronization
52
3.3Vaux
VCC_3V3
PI
3.0V~3.6V, typically
3.3V DC supply
NOTES