RS485-LoRa Wireless Converter
RS485-LoRa Wireless Converter RS485-LoRaWAN Wireless Converter TCP/UDP/MOTT HRI-4853
DC 4.5~28V wide voltage input.
- Rack rails compatible.
- Built in configuration page, without the need for other configuration software, the device can be configured and maintained through the local area network.
- HRI-4851: can be configured as point to point, point to many, or mesh mode.
- HRI-4852: Ethernet, LTE multiple network modes.
- HRI-4852 support TCP, UDP, MQTT.
- Support for data encryption,1024 bytes cache, a single packet supports up to 240 bytes.
- Support communication key function, prevent data interception.
- Operating temperature range: -40 ~ 85 °C.
Product introduction
What’s this?
HRI-4851 converts 485 bus into LoRa, HRI-4852 connect HRI-4851 to server via ETH or LTE.
Main Features
The HRI-485x series comprises a Data Transfer Unit (DTU) device that facilitates wireless data transmission by converting the RS-485 bus. HRI-4851 enable RS-485 data to be transmitted via LoRa, on the other hand, HRI-4852 connects the data of HRI-4851 to the server via LTE or ETH. 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).
Specification
- Tab1
| Parameters | Description |
| MCU | ESP32C3-FN4(HRI-4851) / ESP32DOWDQ6(HRI-4852) |
| LoRa chipset | SX1262 |
| Frequency | 470~490MHz(470M+200K*N) |
| 863~883MHz(863M+200K*N) | |
| 902~922MHz(902M+200K*N) | |
| N: 0~100 | |
| LTE module | Air724UG |
| 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 |
| Baud rate | 1200/2400/4800/9600/19200/38400/57600/115200 |
| Buffer | 1024 bytes |
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-4851 supports P2P custom protocol, need work with other HRI-4851 or HRI-4852.
- HRI-485L supports LoRaWAN protocol, need work with a LoRaWAN gateway.
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-4852’s header pins are only used for power supply, it can’t communicate with a RS584 devices.
- HRI-485L is NOT a LoRaWAN gateway, it’s running LoRa custom P2P protocol, only work with HRI-4851 or other Heltec P2P protocol devices.
Picture display
Main Catagory
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