Quectel BC660K-GL - Key Features; Functional Diagram

NB-IoT Module Series
BC660K-GL Hardware Design
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2.2. Key Features
The following table describes the detailed features of BC660K-GL module.
Table 2: Key Features of BC660K-GL
Item
Details
Power Supply
⚫ Supply voltage: 2.2–4.3 V
⚫ Typical supply voltage: 3.3 V
Power Saving
Typical power consumption: 800 nA
Frequency Bands
LTE Cat NB2:
B1/B2/B3/B4/B5/B8/B12/B13/B14/B17/B18/B19/B20/B25/B28/B66/B70/B85
Transmitting Power
23 dBm ±2 dB
USIM Interface
Support 1.8/3.0 V USIM card
UART Interfaces
Main UART Port:
⚫ Used for AT command communication and data transmission, where the
baud rate is 115200 bps by default. For more details, see Chapter 3.7.1.
⚫ Used for firmware upgrade, where the baud rate is 921600 bps by
default.
Debug UART Port:
⚫ Used for debugging
⚫ Default baud rate: 6 Mbps
Network Protocols
UDP/TCP/SNTP/LwM2M*/MQTT*/TLS*/DTLS*/SSL*
SMS*
⚫ Text Mode
⚫ PDU Mode
Data Transmission
Features
⚫ Single-tone (max): 25.5 kbps (DL)/16.7 kbps (UL)
⚫ Multi-tone (max): 127 kbps (DL)/158.5 kbps (UL)
AT Commands
⚫ 3GPP TS 27.005/3GPP TS 27.007 AT commands (3GPP Rel-13)
⚫ Quectel enhanced AT commands
Firmware Update
⚫ Upgrade firmware via main UART port
⚫ Upgrade firmware via DFOTA
Real Time Clock
Supported
Physical Characteristics
⚫ Size: (17.7 ±0.15) mm × (15.8 ±0.15) mm × (2.0 ±0.2) mm
⚫ Weight: 1.0 ±0.2 g
Temperature Range
⚫ Operating temperature range: -35 to +75 °C
1)
⚫ Extended temperature range: -40 to +85 °C
2)
⚫ Storage temperature range: -40 to +90 °C