SPECIFICATIONS

Brand: Dragino

Brand Name: NONE

Model Number: RS485-NB-GE

Origin: Mainland China

is_customized: No

RS485-NB -- RS485/UART to NB-IoT Converter

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

• 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: 350mA@3.3V