Quectel BC65 - Page 55

NB-IoT Module Series
BC65 Hardware Design
BC65_Hardware_Design 54 / 55
I/O
Input/Output
kbps
Kilo Bits Per Second
LB
Low Band
LDO
Low-dropout Regulator
LED
Light Emitting Diode
Li-MnO2
Lithium-manganese Dioxide
LPM
Low Power Mode
LTE
Long Term Evolution
MQTT
Message Queuing Telemetry Transport
NB-IoT
Narrow Band- Internet of Things
PA
Power Amplifier
PCB
Printed Circuit Board
PDU
Protocol Data Unit
PMU
Power Management Unit
PSRAM
Pseudo Static Random-Access Memory
PSM
Power Saving Mode
PTW
Paging Time Window
RF
Radio Frequency
RTC
Real Time Clock
RX
Receive
RXD
Receive Data
SMS
Short Message Service
TCP
Transmission Control Protocol
TX
Transmit
TXD
Transmit Data