Daktronics

What are the expected resistance readings for CAN signal harness on a Vanguard series display?

Topic

  • What are the expected resistance readings for CAN harness on a Vanguard series display?

Environment

  • Product Family: Transportation
  • Product: VF, VM series displays
  • Components: CAN signal harnessing
  • Control System: Vanguard or NTCIP compliant software

Steps

  1.   All resistance reading should be taken with a millimeter across CAN H (orange) and CAN L (blue). When CAN harness is connected to modules it should read ~60 ohms. There should be ~120 ohms at the VCB and on the harness when mods are disconnected.
  2.   If resistance is less than expected than this typically indicates a short while if greater then it can indicate an open. Problems may occur on module or harness itself.  Further troubleshooting should be done to determine which component has issue.

KB ID: DD4682046

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