NB-IoT Module Series
BC65 Hardware Design
BC65_Hardware_Design 11 / 55
2.2. Key Features
The following table describes the detailed features of BC65 module.
Table 3: Key Features
Feature
Details
Power Supply
⚫
Supply voltage range: 3.2
–4.2 V
⚫
Typical supply voltage: 3.8 V
Power Saving
Typical power consumption
: 4 μA
Frequency Bands
B1*/B3/B5/B8/B20/B28
Transmitting Power
23 dBm ±2 dB
USIM Interface
Supports 1.8/3.0 V USIM card
UART Interfaces
Main UART:
⚫
Used for AT command communication and data transmission.
⚫
When used for AT command communication and data transmission, baud
rates 4800 bps, 9600 bps (default), and 57600 bps are supported.
Debug UART:
⚫
Used for firmware debugging and
upgrading.
⚫
Support 921600 bps baud rate.
Auxiliary UART*:
⚫
Used for AT command communication and data transmission.
⚫
When used for AT command communication and data transmission, baud
rates 4800 bps, 9600 bps (default), and 57600 bps are supported.
Network Protocols
Supports UDP/TCP/SNTP/MQTT/CoAP*/PPP/TLS*/DTLS*/HTTP* protocols
SMS*
Text/PDU Mode
Data Transmission
Rate
Cat NB1 (Max):
⚫
Single-tone: 25.5 kbps (DL)/ 16.7 kbps (UL)
⚫
Multi-tone: 25.5 kbps (DL)/ 62.5 kbps (UL)
Cat NB2 (Max):
⚫
127 kbps (DL)/ 158.5 kbps (UL)
AT Commands
⚫
3GPP TS 27.005/3GPP TS 27.007 AT commands (3GPP Rel-13/Rel-14)
⚫
Quectel Enhanced AT commands
Firmware Update
⚫
DFOTA
⚫
Debug
UART
Physical
Characteristics
⚫
Size: (17.7 ±0.15) mm × (15.8 ±0.15) mm × (2.2 ±0.2) mm
⚫
Weight: approx. 1.0 ± 0.1 g
