Quectel RM520N-GL - Page 82

5G Module Series
RM520N-GL_Hardware_Design 81 / 84
RF
Radio Frequency
RFFE
RF Front-End
Rx
Receive
SAR
Specific Absorption Rate
SCS
Sub-carrier Spacing
SMS
Short Message Service
TCP
Transmission Control Protocol
Tx
Transmit
UART
Universal Asynchronous Receiver & Transmitter
UDP
User Datagram Protocol
UL
Uplink
URC
Unsolicited Result Code
USB
Universal Serial Bus
(U)SIM
(Universal) Subscriber Identity Module
V
IH
Input High Voltage Level
V
IL
Input Low Voltage Level
V
OH
Output High Voltage Level
V
OL
Output Low Voltage Level
WCDMA
Wideband Code Division Multiple Access
WLAN
Wireless Local Area Network