UMTS/HSPA+/LTE Standard Module Series
Mini PCIe-C EVB User Guide
Mini_PCIe-C_EVB_User_Guide 17 / 39
GND
5V DC power input
Figure 8: EVB Power Supply Interface
If the power jack is used for power supply, the power plug design of the adapter is shown as below.
Inner contact
Outer contact
Figure 9: Power Plug Design
4.2. USB Interface (J302)
Quectel Mini PCIe-C/-D or EP200F module provides a USB interface which complies with USB 2.0
standard and supports high-speed (480Mbps) mode. The interface is used for AT command
communication, data transmission, firmware upgrade and GNSS NMEA output.
The Mini PCIe-C EVB provides a micro-USB interface J302 for connection with a host device. The USB
data lines USB_DP and USB_DM are connected directly to the Mini PCIe-C/-D or EP200F module. The
USB_VBUS line can be used for USB connection detection and EVB power supply.
The following figure is a reference circuit design of the USB interface.
