Set Sleep Mode Via Usb With Suspend/Resume And Ri Function - Quectel LTE-A Series Hardware Design

The following figure shows the connection between module and host in this case.
The module and the host will be waken up in the following conditions:
⚫
Sending data to EG060V-EA through USB will wake up the module.
⚫
When the module has a URC to report, it will send remote wake-up signals to USB bus so as to wake
up the host.

3.5.1.3. Set Sleep Mode via USB with Suspend/Resume and RI Function

If the host supports USB suspend/resume but not remote wake-up function, the RI signal is needed to
wake up the host. The following steps are required to set the module into sleep mode.
⚫
Execute AT+QSCLK=1 command to enable the sleep mode.
⚫
Ensure the MAIN_DTR is held at high level or keep it open.
⚫ Ensure the host's USB bus, which connects to the module's USB interface, is in suspend mode.
The following figure shows the connection between module and host in this case.
EG060V-EA_Hardware_Design
Module
USB_VBUS
USB_DP
USB_DM
GND
Figure 5: Sleep Mode with Remote Wakeup
Module
USB_VBUS
USB_DP
USB_DM
RI
GND
Figure 6: Sleep Mode with RI Signal Wakeup
LTE-A Module Series
EG060V-EA Hardware Design
Host
VDD
USB_DP
USB_DM
GND
Host
VDD
USB_DP
USB_DM
EINT
GND
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