4–Diagnostics/Troubleshooting
Chassis Diagnostics
4-2 59265-02 B
Input Power LED Is Not Lit
The Input Power LED lights up to indicate that the switch logic circuitry is receiving
the correct voltages. If the Input Power LED is not lit, do the following:
1. Inspect the power cords and connectors. Is the cord unplugged? Is the cord
or connector damaged?
Yes—Make necessary corrections or repairs. If the condition remains,
continue.
No—Continue.
2. Inspect the AC power source. Is the power source delivering the correct
voltage?
Yes—Continue.
No—
For a model 5800V, if the condition remains, contact your
authorized maintenance provider.
For a model 5802V, if the condition remains, continue.
3. Inspect the power supplies. Are the power supplies fully seated in their
bays?
Yes—Continue. Replace the power supplies.
No—Reinstall the power supplies. If the condition remains, replace the
power supplies.
System Fault LED Is Lit
The System Fault LED lights up to indicate that a fault exists in the switch
firmware or hardware. If the System Fault LED lights up, do the following:
Check the Heartbeat LED for an error blink pattern, and then take the
necessary actions. Refer to “Heartbeat LED Blink Patterns” on page 4-3.
For a model 5802V, check the power supply LEDs, and then take the
necessary actions. Refer to “Power Supply Diagnostics” on page 4-12.
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