The Dragino RS485-LB is a RS485 / UART to LoRaWAN Converter for Internet of Things solutions. User can connect RS485 or UART sensor to RS485-LB converter, and configure RS485-LB to periodically read sensor data and upload via LoRaWAN network to IoT server.

RS485-LB can interface to RS485 sensor, 3.3v/5v UART sensor or interrupt sensor. RS485-LB 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-LB is IP67 waterproof and powered by 8500mAh Li-SOCI2 battery, it is designed for long term use for several years.

RS485-LB runs standard LoRaWAN 1.0.3 in Class A. It can reach long transfer range and easy to integrate with LoRaWAN compatible gateway and IoT server.

For data uplink, RS485-LB sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LB will process these returns data according to user-define rules to get the final payload and upload to LoRaWAN server.

For data downlink, RS485-LB runs in LoRaWAN Class A. When there is downlink commands from LoRaWAN server, RS485-LB will forward the commands from LoRaWAN server to RS485 devices.

RS485-LB Supports BLE configure and wireless OTA update which make user easy to use.

Each RS485-LB pre-load with a set of unique keys for LoRaWAN registration, register these keys to LoRaWAN server and it will auto connect after power on.

Features:

LoRaWAN 1.0.3 Class A

Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869

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

Support Bluetooth v5.1 and LoRaWAN remote configure

Support wireless OTA update firmware

AT Commands to change parameters

Uplink on periodically

Downlink to change configure

8500mAh Battery for long term use 

Specifications:

Common DC Characteristics:

Supply Voltage: built in 8500mAh Li-SOCI2 battery , 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

LoRa Spec:

Frequency Range,  Band 1 (HF): 862 ~ 1020 Mhz

Max +22 dBm constant RF output vs.

RX sensitivity: down to -139 dBm.

Excellent blocking immunity

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:

Sleep Mode: 5uA @ 3.3v

LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm

Applications: 

Wireless Alarm and Security Systems

Home and Building Automation

Automated Meter Reading

Industrial Monitoring and Control

Long range Irrigation Systems,etc.

Package Includes:

1 x RS485-LB RS485/UART to LoRaWAN Converter

Dimensions and Weight:

Device Size: 9.7 x 6.5 x 4.7 cm

Device Weight: 150g

Package Size / pcs : 14.0 x 8x 5 cm

Weight / pcs : 180g 

Order Info:

RS485-LB-XX-YY:

XX: the default frequency band

EU433: Default frequency band EU433

CN470: Default frequency band CN470

EU868: Default frequency band EU868

IN865: Default frequency band IN865

KR920: Default frequency band KR920

AS923: Default frequency band AS923

AU915: Default frequency band AU915

US915: Default frequency band US915

YY:

12: With M12 IP68 waterproof cable hole(default)

16: With M16 IP68 waterproof cable hole

Useful Link:

Datasheet

User Manual

Firmware

Certificate