Dragino RS485-NB - RS485/UART to NB-IoT Converter NB-IoT
The Dragino RS485-NB is a RS485 / UART to NB-IoT Converter for Internet of Things solutions.
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The Dragino RS485-NB is a RS485 / UART to NB-IoT Converter for Internet of Things solutions. User can connect RS485 or UART sensor to RS485-NB converter, and configure RS485-NB to periodically read sensor data and upload via NB-IoT network to IoT server.
RS485-NB can interface to 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 different uplink methods including MQTT, MQTTs, UDP & TCP for different application requirement, and support uplinks to various IoT Servers.
RS485-NB supports BLE configure and OTA update which make user easy to use.
RS485-NB is powered by 8500mAh Li-SOCI2 battery, it is designed for long-term use up to severa years.
RS485-NB has optional built-in SIM card and default IoT server connection version. Which makes it works with 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
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
Ultra Low Power consumption
Uplink on periodically
Downlink to change configure
8500mAh Battery for long term use
Nano SIM card slot for NB-IoT SIM
Applications:
Logistics and Supply Chain Management
Smart Buildings & Home Automatio
Smart Metering
Smart Agriculture
Smart Cities
Smart Factory
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
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
Absolute Maximum Ratings:
VCC: 0.5v ~ 3.9v
Operating Tempature: -40 ~ 85°C
I/O pins: 0.5v ~ VCC+0.5V
Common DC Characteristics:
Supply Voltage: 1.8v ~ 3.6v
Operating Tempature: -40 ~ 85°C
Power Consumption:
STOP Mode: 10 μA @ 3.3v
Max transmit power: 350mA@3.3v.
Battery:
Li/SOCI2 unchargable battery
Capacity: 8500mAh
Self Discharge: <1% / Year @ 25°C
Max continuously current: 500mA
Max boost current: 2A, 1 second