Quectel EG915U Series - USB Interface

LTE Standard Module Series
EG915U_Series_Hardware_Design 40 / 81
SPK_N
0R
0R
SPK_P
Module
Close to Receiver
NF
33 pF
10 pF
33 pF
Differential
layout
0603
TVS
TVS
0R
0R
Figure 17: Reference Design for Receiver Interface
4.2. USB Interface
EG915U series module provides one integrated Universal Serial Bus (USB) interface which complies with
the USB 2.0 specification and supports full-speed (12 Mbps) and high-speed (480 Mbps) modes. The
USB interface can only serve as a slave device and is used for AT command communication, data
transmission, software debugging and firmware upgrade.
Table 10: Functions of the USB Interface
Functions
Data communication with external AP
Y
AT command communication
Y
Data transmission
Y
GNSS NMEA output
N
Software debugging
Y
Firmware upgrade
Y
Voice over USB
N