High Isolation RS485 Data Forward Unit RHF3M485

Product Description

DFU (Data Forward Unit) RHF3M485 is a transparent transmission device form high isolation RS485 and RS232 to LoRaWAN transceiver which is designed by RisingHF. And the device integrates all LoRaWAN bands such as CN470, EU433, EU868, US915, AS923, AU915, KR920 and so on, and supports CLASS A and C.

RHF3M485 cover full LoRa frequency band of ISM sub-GHz, 433/470/780/868/915MHz. It will realize data transfer automatically through LoRaWan communication according to the integrated Application Data Transmission Protocol.

Benefit from the excellent wireless RF coverage of LoRa technology, thus saving the complex cabling projects and the cabling cost. RHF3m485 equipped with an isolated RS485 interface which withstand 1.5kVRMS isolation voltage between the interface side and UART side of the device.

RHF3M485 support wide range of input power supply, makes it more suitable for the industrial environment.

Product Features

Comply with EIA RS485, EIA RS232 and Global LoRaWan.

 Comply with Modbus protocol.

 Support RS485 and RS232 communication (alternatively)

 Auto-data transparent forwarder, auto-LoRaWan protocol.

 High isolation RS485 interface, isolation voltage 1.5kVRMS

 Wide range input power supply, Positive and negative Polarity automatic adaptation:

 DC 6~55V  AC 6.8~48V

 Resettable fuse in the input power line for safety.

 Support EU433/CN470/EU868/US915/AU915/AS923/KR920 LoRaWAN protocol

 Support LoRaWan Class A/Class C

 Support LoRa HF/LF: 433/470/780/868/915MHz

 LoRa TX output power 20dBm@434/470MHz, 14dBm@868/915MHz

 LoRa Sensitivity -139dBm@434/470MHz, -137dBm@868/915MHz

 RS485/RS232 baud rate configurable: 600bps~38.4kbps

 Support data bits 7bit/8bit; stop bit 1bit, parity bit: None/odd/even

 Built-in 2KB packet buffer, automatic packet segment and packet assembly.

 Pluggable terminal for convenience of use.

 LED for power and operation indication

 Equipped with LoRa antenna, quick for installation.

 ESD protection: IEC 61000-4-2 contact±4KV; Air discharge ±8K

Application Area

Functional Diagram

For more information, pls access to our website www.risinghf.com.