Operating Modes; Power Saving; Sleep Mode - Quectel EC200T Series Hardware Design

RESERVED PCM_SYNC
3.3Vaux VCC_3V3
NOTE
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
Idle
Normal
Operation
Talk/Data
Minimum AT+CFUN=0 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=4 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.

3.4. Power Saving

3.4.1. Sleep Mode
EC200T Series 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.
Execute AT+QSCLK=1 to enable sleep mode.

 Ensure the DTR is kept at high level or be kept open.
 The host's USB bus, which is connected with the module's USB interface, enters suspend state.
EC200T_Series_Mini_PCIe_Hardware_Design
EC200T Series Mini PCIe Hardware Design
51 IO
52 PI
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
PCM data frame sync
Power supply for the
module
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