Galaxy, No communications, Failed RS-422 surge card

Potential Symptoms

  • No communications to the display.
  • Receiving a "Connect failed" alert error in Venus.
  • Failed loopback test at the output of the RS-422 surge card while test passed at the input of the surge card.


  • Product Family: Message Displays
  • Product: AF-3150, AF-3160, AF-3165, AF-3180, AF-3190, AF-3197, AF-3200, AF-3220, AF-3400
  • Component: RS-422 serial communications 
  • Control System: Venus 1500


  • Failed RS-422 surge card.


  • Replace RS-422 surge card.

KB ID: DD3582213

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