The U70 PL-20 USB Network Interface expansion module enables a SmartServer IoT or other controller or computer to communicate with LON PL-20 and LON/IP PL-20 power line carrier networks via USB. The compact module is housed in a DIN 43880 7TE compliant enclosure. The U70 is compatible with OpenLDV 5 (or newer) and with hosts implementing the LON/IP stack, which provides source code for LON/IP and LON-compatible protocol stacks. The U70 facilitates communication to everyday devices like pumps, motors, valves, sensors, actuators and lights for lighting controls, building automation, energy management, transportation systems control and telecommunications equipment management. Tx and Rx LEDs provide an indication of LON packet transmission and reception. An on-board Connect LED provides a visual indication of device status during discovery and device configuration; status is also communicated to the host via the USB interface.


  • Includes integrated 3-phase power line coupler and 24VDC power supply
  • Powered by power line mains voltage
  • Compatible with IzoT™ Net Server, OpenLNS™ Server, LNS™ Server and OpenLDV applications
  • Works with IzoT Net and LNS compatible applications such as the IzoT Commissioning Tool and LonMaker Integration Tool
  • Compatible with SmartServer IoT
  • Source code available as a download for a Linux-compatible driver


  • Hardware and electrical specifications
    • Renesas PL Smart Transceiver Processor
    • 1 MB flash memory
    • 64 KB RAM
    • USB Micro-B 2.0, compatible with USB 1.1 and high-speed USB systems, peripherals and cables
    • USB cable with Mirco-B USB to Type A USB connectors included
    • Mains interface 1-3 phase AC
    • Input voltage 100-277VAC +/- 10%, 50-60Hz +/-5% (AC mains power input, single phase used for power; up to three phases used for communication)
    • Input power 2.5W no-load max (for Vin ≤ 120VAC) 35W max
    • Output voltage 24VDC +/- 5%
    • Output current 350mA max
    • Indicators
      • LON Tx/Rx LEDs
      • Connect LED
      • Power LED
    • Operating temperature -40°C to +70°C
    • Operating humidity 5-95% RH non-condensing @ 50°C
    • EN 61000-4-5:2006, +/- 6KV surge protection
    • DIN 43880 7TE mounting
  • Software platform
    • LON/IP PL-20 and LON PL-20 with a Layer 2 or Layer 5 Interface
    • Drivers
      • Windows: OpenLDV 5 (or newer)
      • Linux: Source code available for porting
  • Safety and compliance
    • UL/IEC/CSA 62368-1
    • FCC/CE/ICES/AS/NZ/VCCI CISPR 32 Class B; EN 55024, CISPR 24


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