Sunsea AIoT SIMCom SIM7600NA User Manual page 69

RF Radio Frequency
RMS Root Mean Square (value)
RTC Real Time Clock
SIM Subscriber Identification Module
SMS Short Message Service
SPI serial peripheral interface
SMPS Switched-mode power supply
TDMA Time Division Multiple Access
TE Terminal Equipment, also referred to as DTE
TX Transmit Direction
UART Universal Asynchronous Receiver & Transmitter
VSWR Voltage Standing Wave Ratio
SM SIM phonebook
NC Not connect
EDGE Enhanced data rates for GSM evolution
HSDPA High Speed Downlink Packet Access
HSUPA High Speed Uplink Packet Access
ZIF Zero intermediate frequency
WCDMA Wideband Code Division Multiple Access
VCTCXO Voltage control temperature-compensated crystal oscillator
USIM Universal subscriber identity module
UMTS Universal mobile telecommunications system
UART Universal asynchronous receiver transmitter
SIM7600NA_user manual _V1.00
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69 2020-1-7