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Is the HDL300 system compatible with the Cisco® SX80?

To connect the HDL300 system with Cisco Telepresence® SX80 CODEC, two custom cables are needed to accommodate the standard 3.5mm jack connector on the HDL300 system's connect module with the standard Euroblock connectors on the Cisco I/O panel.

Creating custom cables

Cable 1: Prepare a 3.5mm jack cable with the three pins positive (+), negative () and ground (), wired to an appropriate Euroblock 4-conductor terminal block per the SX80 User Manual microphone inputs. Leave the microphone Mute pin unused.

Cable 2: Prepare a 3.5mm jack cable with the three pins positive (+), negative () and ground (), wired to accommodate the SX80 speaker Output Left & Right terminal connections by tying the two negative () and two ground () lines together.

For example:

On the connect module

  1. Plug Cable 1 into the Aux Out port
  2. Plug Cable 2 into the Aux In port
  3. Connect the PoE cable (provided) to the RJ45-1 port on the connect module to the rear RJ45 port on the HDL300 system
  4. Plug in the 54VDC power supply
  5. In Nureva Room Manager,
    1. Set "Aux Out" to Microphone Out (Mic level
    2. Set "Sleep mode" to Disable

On the Cisco CODEC

  1. Plug Cable 1 Euroblock connector into Microphone Input Channel 1 on the rear SX80 I/O panel
  2. Plug Cable 2 Euroblock dual terminal connectors into Speaker Output Channel L & R
  3. Connect the Cisco CODEC to the network via the LAN port
  4. Plug in the 110/240VAC power source
  5. In the SX80 CODEC control software
    1. Set "Audio Input Mic Type" to Line 
    2. Set Microphone controls "Echo Control", "Noise Reduction" and "Dereverberation" to OFF

Make sure you do not connect the microphone Mute on the Euroblock terminal.

Last updated: June 27, 2019

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