Features:   

• NB-IoT Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD
• Ultra-low power consumption
• Support multiply RS485 devices by flexible rules
• Support Modbus protocol
• Support Interrupt uplink
• Supports connecting a UART sensors with 3.3V or 5V
• Multiply Sampling and one uplink
• Support Bluetooth v5.1 remote configure and update firmware
• Uplink via MQTT, MQTTs, TCP, or UDP
• Uplink on periodically
• Downlink to change configure
• 8500mAh Battery for long term use
• Nano SIM card slot for NB-IoT SIM 

Applications:   

• Smart Buildings & Home Automation
• Logistics and Supply Chain Management
• Smart Metering
• Smart Agriculture
• Smart Cities
• Smart Factory 

Specifications:  

Common DC Characteristics:

• Supply Voltage: 2.5v ~ 3.6v
• Operating Temperature: -40 ~ 85°C

I/O Interface: 

• Battery controllable output (2.6v ~ 3.6v depends on battery)
• +5v controllable output
• 1 x RS485 Interface
• 1 x UART Interface , 3.3v or 5v
• 1 x Interrupt or Digital IN/OUT pins
• 1 x I2C Interface
• 1 x one wire interface 

NB-IoT Spec:

NB-IoT Module: BC660K-GL

Support Bands:

• B1 @H-FDD: 2100MHz
• B2 @H-FDD: 1900MHz
• B3 @H-FDD: 1800MHz
• B4 @H-FDD: 2100MHz
• B5 @H-FDD: 860MHz
• B8 @H-FDD: 900MHz
• B12 @H-FDD: 720MHz
• B13 @H-FDD: 740MHz
• B17 @H-FDD: 730MHz
• B18 @H-FDD: 870MHz
• B19 @H-FDD: 870MHz
• B20 @H-FDD: 790MHz
• B25 @H-FDD: 1900MHz
• B28 @H-FDD: 750MHz
• B66 @H-FDD: 2000MHz
• B70 @H-FDD: 2000MHz
• B85 @H-FDD: 700MHz

Battery:

• Li/SOCI2 un-chargeable battery
• Capacity: 8500mAh
• Self Discharge: <1% / Year @ 25°C
• Max continuously current: 130mA
• Max boost current: 2A, 1 second

Power Consumption:

• STOP Mode: 10uA @ 3.3v
• Max transmit power: This email address is being protected from spambots. You need JavaScript enabled to view it.

• DataSheet, Document Base
• User Manual -- Online Latest
• Shared Folder for all Dragino Products

Part Number: RS485-NB-XX-YY

XX:

• GE: General version ( Exclude SIM card)
• 1T: with 1NCE * 10 years 500MB SIM card and Pre-configure to ThingsEye server

YY: The grand connector hole size

• M12: M12 hole
• M16: M16 hole