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Is the HDL300 system compatible with the Yealink VC880?

Yes, the HDL300 system can extend the microphone and audio capabilities from the Yealink room solution.

To connect the HDL300 system with the Yealink VC880, you'll need the following items.


  1. Purchase two 3.5mm (3-conductor) Male to 2 RCA Male Stereo Y-splitter RCA cables from an audio supplier.
  2. Label one cable Cable 1 and the other one Cable 2.

On the HDL300 & Connect Module

  1. Plug Cable 1 into the Aux Out port
  2. Plug Cable 2 into the Aux In port
  3. Plug the USB cable (included with HDL300) into the USB-B port
  4. Connect the PoE cable (provided) to the RJ45-1 on the Connect Module port to the rear RJ45 port on the HDL300 system
  5. Plug in the 54VDC power supply

On a PC/laptop

  1. Plug the USB cable into a USB-A port on the laptop
  2. Download and Open Nureva Room Manager
  3. Under Product updates => Check for Firmware updates
  4. Under Audio conferencing system => Controls
    1. Microphones => set the mic level to 80%
    2. Speakers => set the volume level to 100%
    3. Auxiliary ports
      1. Select Aux Out -> Microphone Out (Line level)
      2. Set Sleep mode => Disable
  5. Disconnect the USB-B cable from the Connect Module.

On the Yealink console

  1. Plug Cable 1 into the RCA In L/R ports
  2. Plug Cable 2 into the RCA Out L/R ports
  3. Connect the console to the Network
  4. Connect the power supply as described in the Yealink user manual
  5. In the Yealink User Admin settings, Disable any audio processing, including 'Noise Proofing' or 


Connection Diagram

NOTE: Yealink microphones (VCM34) or Bluetooth wireless microphones (CPW90-BT) cannot be used in tandem with the HDL300.

NOTE: The Nureva Aux In / Out connections are single-ended, unbalanced signals with default maximum output signals as given in the table below. Any equipment requiring voltages below these levels may result in clipping, distortion and, in extreme cases, damage to connected systems. Equipment requiring voltages above these levels will not be adequately driven by the HDL300 system’s output signal and may result in quiet / no audio on the channel. Before connecting to the Nureva Connect Module, make sure the third-party device voltage levels are adequate or adjusted properly by additional interfacing hardware.

Last updated: January 20, 2020

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