Quectel BC66 - Page 59

NB-IoT Module Series
BC66 Hardware Design
BC66_Hardware_Design 58 / 59
I/O
Input/Output
kbps
Kilo Bits Per Second
LED
Light Emitting Diode
Li-MnO2
Lithium-manganese Dioxide
Li-2S
Lithium Sulfur
LTE
Long Term Evolution
LwM2M
Lightweight M2M
MQTT
Message Queuing Telemetry Transport
NB-IoT
Narrow Band- Internet of Things
OOS
Out of Service
PCB
Printed Circuit Board
PDU
Protocol Data Unit
PPP
Point-to-Point Protocol
PSM
Power Save Mode
PTW
Paging Time Window
RF
Radio Frequency
RTC
Real Time Clock
RXD
Receive Data
SMS
Short Message Service
TCP
Transmission Control Protocol
TE
Terminal Equipment
TLS
Transport Layer Security
TXD
Transmitting Data
UART
Universal Asynchronous Receiver & Transmitter
UDP
User Datagram Protocol