Quectel EG06 Series User Manual

LTE-A Module Series
EG06 Hardware Design
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3.5.1.3. USB Application with USB Suspend/Resume and RI Function
If the host supports USB suspend/resume, but does not support remote wake-up function, the RI signal is
needed to wake up the host.
There are three preconditions to let the module enter into the sleep mode.
 Execute AT+QSCLK=1 command to enable the sleep mode.
 Ensure the DTR is held at high level or keep it open.
 The host’s USB bus, which is connected with the module’s USB interface, enters into suspended
state.
The following figure shows the connection between the module and the host.
USB_VBUS
USB_DP
USB_DM
VDD
USB_DP
USB_DM
Module Host
GND
GND
RI EINT
Figure 6: Sleep Mode Application with RI
 Sending data to EG06 through USB will wake up the module.
 When EG06 has a URC to report, RI signal will wake up the host.
3.5.1.4. USB Application without USB Suspend Function
If the host does not support USB suspend function, USB_VBUS should be disconnected with an external
control circuit to let the module enter into sleep mode.
 Execute AT+QSCLK=1 command to enable the sleep mode.
 Ensure the DTR is held at high level or keep it open.
 Disconnect USB_VBUS.

Quectel EG06 Series Specifications

General

Brand	Quectel
Model	EG06 Series
Category	Control Unit
Language	English