Heltec LoRa RS485 Wireless Converter HRI-4852 Modem Modbus ESP32 SX1262 Chip LoRa Transceiver Reliable DTU Device for LoRa/Ethernet (HRI-4852-915MHz)

About this item 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. Show more Product Description Recommended Usage Summary 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). NOTE: HRI-4852 cannot be used alone, it only serves as a network access tool for HRI-4851. RS485 Wireless Converter Size (millimeters) Main Features 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. Specifications 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. Hardware Connection Description Packing list The default packing list without selecting any accessories is as follows: RS485 Wireless Converter * 1 Glue Rod Antenna * 1 Product information Item Weight 5.3 ounces ASIN B0DBH82PDY Item model number HRI-4852-915MHz Best Sellers Rank #1,014 in Single Board Computers (Computers & Accessories) Date First Available July 29, 2024 Manufacturer Heltec Automation Country of Origin China Warranty & Support Product Warranty: For warranty information about this product, please click here Feedback Would you like to tell us about a lower price?