Quectel EG91 Series Hardware Design page 107

PING
PMIC
POS
PPP
QAM
QPSK
RF
RHCP
RoHS
RTS
Rx
SAW
SPI
SMD
SMTP
SMS
SSL
TCP
TDD
TX
UART
UDP
UL
UMTS
URC
EG91_Series_Hardware_Design
Packet Internet Groper
Power Management IC
Point of Sale
Point-to-Point Protocol
Quadrature Amplitude Modulation
Quadrature Phase Shift Keying
Radio Frequency
Right Hand Circularly Polarized
Restriction of Hazardous Substances
Request to Send
Receive
Surface Acoustic Wave
Serial Peripheral Interface
Surface Mount Device
Simple Mail Transfer Protocol
Short Message Service
Secure Sockets Layer
Transmission Control Protocol
Time Division Duplexing
Transmitting Direction
Universal Asynchronous Receiver/Transmitter.
User Datagram Protocol
Uplink
Universal Mobile Telecommunications System
Unsolicited Result Code
LTE Standard Module Series
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