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.
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
Common DC Characteristics:
Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~ 3.6v
Operating Temperature: -40 ~ 85°C
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
Frequency Range, Band 1 (HF): 862 ~ 1020 Mhz
Max +22 dBm constant RF output vs.
RX sensitivity: down to -139 dBm.
Excellent blocking immunity
Li/SOCI2 un-chargeable battery
Self-Discharge: <1% / Year @ 25°C
Max continuously current: 130mA
Max boost current: 2A, 1 second
Sleep Mode: 5uA @ 3.3v
LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
Wireless Alarm and Security Systems
Home and Building Automation
Automated Meter Reading
Industrial Monitoring and Control
Long range Irrigation Systems,etc.
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
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
12: With M12 IP68 waterproof cable hole(default)
16: With M16 IP68 waterproof cable hole