Thunderbolt Indicator Lights

How to Interpret Controller LED Lights

Use Thunderbolt card LED indicators to interpret the controller’s status as follows:

• POWER: When green light is active, the controller has power
• RESET: Hitting the reset button activates the red RESET light, indicating the controller is being power cycled.
• STATUS:
  • If the green light is on, the controller has loaded successfully.
• ETH A & B:
  • Normal operation: one port will have red and green flashing fast and alternating, the other port will have green light flashing fast.
  • Red light is flashing fast: data is traveling to that port, and out of the other port.
  • Green light is flashing fast: data is passing through the cable successfully.
  • Green light is on solid: a cable is plugged in.
  • Red light is on solid: a cable is plugged in, but the PC has not connected to it.
  • If both the green and red light flash simultaneously at a steady rate: the cable plugged into that port is bad.

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