Smart LTE Module Series
SC66 Hardware Design
SC66_Hardware_Design 139 / 139
QPSK
Quadrature Phase Shift Keying
RF
Radio Frequency
RH
Relative Humidity
RHCP
Right Hand Circularly Polarized
RTC
Real Time Clock
Rx
Receive
SMS
Short Message Service
TDD
Time Division Distortion
TE
Terminal Equipment
TX
Transmitting Direction
UART
Universal Asynchronous Receiver & Transmitter
UMTS
Universal Mobile Telecommunications System
(U)SIM
(Universal) Subscriber Identity Module
Vmax
Maximum Voltage Value
Vnorm
Normal Voltage Value
Vmin
Minimum Voltage Value
V
I
Voltage Input
V
IH
min
Minimum Input High Level Voltage Value
V
IL
max
Maximum Input Low Level Voltage Value
V
O
Voltage Output
V
OH
min
Minimum Output High Level Voltage Value
V
OL
max
Maximum Output Low Level Voltage Value
VSWR
Voltage Standing Wave Ratio
WCDMA
Wideband Code Division Multiple Access