Quectel BC66 Hardware Design

NB-IoT Module Series
BC66 Hardware Design
BC66_Hardware_Design 10 / 59
2.2. Key Features
The following table describes the detailed features of BC66 module.
Table 2: BC66 Key Features
Feature
Details
Power Supply
 Supply voltage: 2.1V ~ 3.63V
 Typical supply voltage: 3.3V
Power Saving
 Typical power consumption: 3.5μA
Frequency Bands
LTE Cat NB1:
 B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B26*/B28/B66
Transmitting Power
 23dBm±2dB
USIM Interface
 Support 1.8V USIM card
USB Interface
 Conform to USB 1.1 specifications, with maximum data transfer rate up to
12Mbps
 Used for software debugging and upgrading
 Support USB serial driver under Windows/Linux operating systems
UART Interfaces
Main UART Port:
 Used for AT command communication and data transmission.
 By default, the module is in auto-baud mode, and it supports automatic
baud rates not exceeding 115200bps. When powering on the module, the
MCU has to send AT command consecutively to synchronize baud rate
with the module. When OK is returned, it indicates the baud rate has been
synchronized successfully. When the module is woken up from Deep
Sleep mode, the baud rate synchronized during start-up will be used
directly.
 Also can be used for firmware upgrade, and in such case, the baud rate is
921600bps by default.
Debug UART Port:
 Used for firmware debugging
 Default baud rate: 115200bps
Auxiliary UART Port:
 Used for firmware debugging
 Default baud rate: 115200bps
Network Protocols
 UDP/TCP/LwM2M/MQTT(s)/SNTP/TLS/CoAP*/PPP*/HTTP*/HTTPS*
SMS*
 Text/PDU Mode

Quectel BC66 Specifications

General

Brand	Quectel
Model	BC66
Category	GSM/GPRS Modules
Language	English