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The HRI-485x series comprises a Data Transfer Unit (DTU) device that facilitates wireless data transmission by converting the RS-485 bus. The sub-models of this series enable RS-485 data to be transmitted via multiple communication methods, including LTE (Cat. 1/Cat. 4), private LoRa, standard LoRaWAN, Ethernet, and others. This highly dependable DTU device is suitable for deployment in industrial settings and can be mounted directly on rack rails, thus enabling IoT evolution for previous devices. Additionally, the series features an effortless configuration function that allows for the direct management and configuration of options and parameters within the Local Area Network (LAN).
|MCU||ESP32C3-FN4 / ESP32DOWDQ6|
|Rack rail width||35 mm|
|Max. TX Power||21±1 dbm|
|Max. Receiving sensitivity||-134dBm|
|Supply voltage||4.5 ~ 28v|
|Operating temperature||-40 ~ 85℃|
|Operating humidity||10%～90%, no-condensing|
|Antenna impedance||50 Ω|
|Address Code||0000 ~ FFFF|
HRI-4851‘s primary function is to convert the RS485 bus to LoRa wireless signal. Usually works as a node device, P2P control and relayer.
HRI-4852 is a LoRa custom P2P protocol gateway, it transfer LoRa signals from other devices to the cloud server through LTE or Ethernet.
HRI-4853 is a standalone device which transfer RS-485 to a cloud server via LTE or Ethernet network.
All HRI-485X series can upgrade firmware via OTA.
No, the WiFi function only used for OTA upgrade.
The default packing list without selecting any accessories is as follows:
|RS485 Wireless Converter||x1|
|Glue Rod Antenna||x1|