Ethernet to LoRa Radio Modem

The LRA-900-E is a Ethernet to radio device designed for remote communication operating in a transparent way and exploiting the physical layer of LoRa (Long Range) transmission technology. By using the VxComm Driver/Utility, the built-in RF port of the LRA-900-E can be virtualized to a standard PC COM Port in Windows. Therefore, users can transparently access RF datas over the Internet/Ethernet via COM Port program.
The LRA-900-E provides a maximum line of sight (LOS) transmission distance of 1500 meters at an RF bit rate 10,000 bps. In order to overcome the interference that may be encountered in harsh environments, the LRA-900-E allows the RF transmission bit rate to be configured to a minimum of 250 bps, enhancing the capability of the modem to resist noise and other interference. Additionally, the RF channels and Group IDs are adjustable, which is helpful to avoid interference encountered when two LRA-900-E networks are adjacent. The RF channels and the Group IDs can be configured in order to distinguish and control the different LRA-900-E networks.


Request For Quotation




    • LoRa (Long Range) transmission technology
    • 32 RF channels (Frequency band : 864~ 871.5MHz, 915~ 922.5MHz)
    • RF baud rates: 10,000 ~ 250 bps
    • Wireless line of sight (LOS) transmission range of up to 1500 meters at an RF baud rate of 10,000 bps
    • Data transmission via Virtual COM or raw TCP connection
    • Tiny Web server for configuration (HTTP)
    • Supports TCP server-mode operation
    • Supports UDP responder for device discovery (UDP Search)

    Hardware Specifications

    RF Interface
    Radio Frequency 864~ 871.5 MHz, 915~ 922.5 MHz (channel: 32, recommend using 868 +/- 4 MHz)
    Baud Rate 10,000 ~ 250 bps
    Transmission Power 15 dBm (Max.)
    Antenna 2 dBi Omnidirectional Antenna
    Transmission Distance up to 1500 m (with 10,000 baud, in free field conditions)
    Group ID 0~255
    Protocols Transparent transmit
    Configuration Web Server
    Ethernet Interface
    Ethernet 10/100 Base-TX, 8-pin RJ-45 x 1, (Auto-negotiating, Auto-MDI/MDIX, LED indicator)
    LED Indicators
    Red/Green/Yellow Power/RF TxD/RF RxD Status
    EMS Protection
    ESD +/- 4 kV Contact
    EFT +/- 1 kV
    Surge +/- 1 kV
    Power Input +10 VDC ~ +30 VDC
    Power Consumption 1.5 W (Max.)
    Dimensions (W x L x H) 110 mm x 83 mm x 33 mm (not include antenna)
    Installation DIN-Rail
    Operating Temperature -25 ~ +75°C
    Storage Temperature -30 ~ +80°C
    Relative Humidity 10 ~ 90% RH, Non-condensing

    Ordering Informations

    LRA-900-E CR Ethernet to LoRa Radio Modem (RoHS)