Quectel EC25-V - Page 66

LTE Module Series
EC25-V User Manual
EC25-V_User_Manual Confidential / Released 65 /
69
PPP
Point-to-Point Protocol
QAM
Quadrature Amplitude Modulation
QPSK
Quadrature Phase Shift Keying
RF
Radio Frequency
RHCP
Right Hand Circularly Polarized
Rx
Receive
SIM
Subscriber Identification Module
SMS
Short Message Service
TDD
Time Division Duplexing
TDMA
Time Division Multiple Access
TD-SCDMA
Time Division-Synchronous Code Division Multiple Access
TX
Transmitting Direction
UL
Uplink
UMTS
Universal Mobile Telecommunications System
URC
Unsolicited Result Code
USIM
Universal Subscriber Identity Module
Vmax
Maximum Voltage Value
Vnorm
Normal Voltage Value
Vmin
Minimum Voltage Value
V
IH
max
Maximum Input High Level Voltage Value
V
IH
min
Minimum Input High Level Voltage Value
V
IL
max
Maximum Input Low Level Voltage Value
V
IL
min
Minimum Input Low Level Voltage Value
V
I
max
Absolute Maximum Input Voltage Value
V
I
min
Absolute Minimum Input Voltage Value