Quectel UMTS&LTE EVB - Page 45

UMTS/HSPA/LTE Module Series
UMTS&LTE EVB User Guide
UMTS&LTE_EVB_User_Guide Confidential / Released 44 / 44
GND
Ground
GNSS
Global Navigation Satellite System
I/O
Input/Output
LED
Light Emitting Diode
LTE
Long Term Evolution
MIC
Microphone
NC
Not Connected
PC
Private Computer
PCB
Printed Circuit Board
PCM
Pulse Code Modulation
PO
Power Output
RF
Radio Frequency
SD
Secure Digital
SIM
Subscriber Identity Module
UART
Universal Asynchronous Receiver & Transmitter
UMTS
Universal Mobile Telecommunications System
USB
Universal Serial Bus
USIM
Universal Subscriber Identity Module
VBAT
Voltage of Battery
Quectel
Confidential