USR-DR124 | “Lipstick” Size Lora Wireless Modem The USR-DR124 is an ultra-compact 2.4GHz LoRa modem equipped with an RS485 port. It enables transparent transmission between RS485 and LoRa, and supports multiple data transmission modes. Additionally, this device comes with advanced features such as LoRa signal detection and LBT detection. With the USR-DR124, users can easily achieve data transmission for on-site serial devices.
Key Features
  • “Lipstick” Size: Save Your Space
  • FLRC/LoRa Modulation: High/low speed, medium/long distance transmission
  • High-Power Transmission: Optional 12/27dBm
  • 2.4GHz Frequency Band: 2.4GHz - 2.5GHz
  • DIN Rail Mounting: Convenient and quick
  • Modbus Transparent Transmission: Easy to use
  • Relay Networking: Wireless distance extension
  • Wide-temperature operation: -40℃~85℃
  • Remote Config: AT command, config utility
RS485 to 2.4GHZ Lora,
Bidirectional Transparent Data Tata Transmission This 2.4G LoRa modem can turn the serial port data from your devices into LoRa wireless signals. It cuts the need for wires, letting devices communicate wirelessly over long distances. It’s great for outdoor use, industrial spots, or places where running cables is a hassle.
FLRC/LoRa Modulation
High/low speed, medium/long distance transmission LoRa Modulation: Adopts linear spread spectrum technology, enabling long - distance transmission and strong anti - interference capability. Suitable for long - distance and complex environment scenarios.
FLRC Modulation: Employs forward error correction and interleaving technology, featuring high transmission rate and high stability. Suitable for medium - and long - distance fast communication scenarios.
Long - Distance Data Transmission The LoRa wireless transmission power can be selected as 12/27dBm, and the wireless transmission distance is 5 - 8 kilometers.
Global License - Free Bands! Leverage our product’s global license - free 2.4GHz - 2.5GHz frequency bands! Deploy across borders seamlessly, enjoying stable wireless connectivity in smart IoT, industrial monitoring, and more scenarios.
Multiple Working Modes
  • Transparent Transmission Mode
    Using this mode, data communication between 2 or more serial port devices can be realized.
  • Fixed-point Mode
    Using this mode, the target address and channel can be flexibly changed during the process, thus altering the data transmission direction.
  • Master-slave Mode
    Using this mode, the master device can specify the slave device to send data.
  • Command Mode
    Using this mode, users can query the module’s current status or set parameters by sending AT commands or using the configuration software.
Wireless Remote Parameter configuration Supports using AT commands and configuration software to read and set parameters of remote devices via LoRa wireless, greatly reducing operation and maintenance costs.
Relay Networking The USR-DR124 can realize multi-level relay networking, suitable for ultra-long-range or complex environment networking communication, and allows multiple networks in the same region.
Signal Detection Function The signal detection function supports current channel environment detection, LoRa communication data transmission signal detection, and indicator light display, facilitating on - site deployment.
  • Current Channel Environment Detection: A single device detects interference in the current working band, outputs SNR and signal values to determine the signal quality of the working band.
  • Data Transmission Signal Detection: During data transmission between multiple devices, the received data carries SNR and signal values to determine the signal quality of the current data transmission.
Listen Before Talk（LBT） Actively monitor the channel environment noise before sending, and delay sendingwhenthe noise exceeds the threshold.This function can effectively improve the communicatiorsuccess rate of the module in harsh environments, and can be used for networktransmission and anti-collision processing.
Featured Functions
  • ① Data Retransmission
  • ② Data transmission success flag
  • ③ Additional Data Transmission
  • ④ Forward Error Correction
  • ⑤ Serial Port Buffer
  • ⑥ Restart without data
Ultra-small Size
  • 3 Practical Designs, Easy Your Installation.
  • Ultra-small size like a lipstick, can be applied to various scenarios, especially the small box.
  • Appearance patent number: 202130367085.8.
Easy connection
    Push-type, pluggable wire connector, easy wiring, no need for additional tools such as screwdrivers.
  • Push wire connector.
  • Pluggable wire connector.
High Reliability Design
  • Watchdog Protection：Hardware watchdog to ensure stable operation.
  • Wide Voltage Power Supply：DC 8-24V.
  • Wide Operating Temp：-40℃ ~ +85℃, industrial grade design, stable operation in harsh environments.
  • Flame retardant rating: V0, burning stops within 10 seconds on a vertical part allowing for drops of plastic that are not inflames.
Energy Management Precisely monitor each area. Property management personnel can real - time monitor the room temperature and light brightness in the area and make timely adjustments, greatly improving management efficiency.
Smart Factory Solution For traditional factories, equipment operating status, production information, etc. can be wirelessly and remotely transmitted to the control center via simple configuration of USR-DR124. This enables unified management and control of terminal devices, effectively reducing production and maintenance costs and facilitating the intelligent transformation of traditional factories.