No communication to Galaxy display; Failed media converter

Potential Symptoms

  • No communication to display through fiber media converters but able to connect at the base of the display.

A-2826 Converter symptoms

  • No fiber or Ethernet Link Activity (LNK ACT) lights lit on media converters.
  • Attached devices (computer and display controller) do not have an active Ethernet link light.
  • No fiber LNK ACT light lit when performing the patch fiber test found on How to Troubleshoot the A-2826 Fiber Ethernet System, DD2968410.
  • No Ethernet LNK ACT light when performing the Ethernet test in above linked document.


  • Product Family: Message Displays
  • Product: Galaxy, GS6
  • Component: Fiber Ethernet communication, Fiber media converter (A-2826 or A-1778)
  • Control System:


  • Failed media converter.


  • Replace media converter.

KB ID: DD3503180

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