The Dragino RS485-NB is an RS485 / UART to NB-IoT Converter for Internet of Things solutions. Users can connect the RS485 or UART sensor to the RS485-NB converter, and configure RS485-NB to periodically read sensor data and upload via the NB-IoT network to the IoT server.
RS485-NB can interface to the RS485 sensor, 3.3v/5v UART sensor, or interrupt sensor. RS485-NB provides a 3.3v output and a 5v output to power external sensors. Both output voltages are controllable to minimize the total system power consumption.
RS485-NB supports uplink methods including MQTT, MQTTs, UDP & TCP for different application requirements, and uplinks to various IoT Servers.
RS485-NB supports BLE configure and OTA update which make users easy to use.
An 8500mAh Li-SOCI2 battery powers RS485-NB, it is designed for long-term use up to several years.
RS485-NB has an optional built-in SIM card and default IoT server connection version which makes it work with a simple configuration.
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 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
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 continuous current: 130mA
Max boost current: 2A, 1 second
Power Consumption:
STOP Mode: 10uA @ 3.3v
Max transmit power: 350mA@3.3v
Applications:
Smart Buildings & Home Automation
Logistics and Supply Chain Management
Smart Metering
Smart Agriculture
Smart Cities
Smart Factory
Order Info
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
Useful Link:
Datasheet
User Manual
Firmware
