• If the OK LED then goes on, return the first power cord for replacement.
If this unit has more than one power cord, repeat Step 1 for each power supply.
If the OK LED still fails to light when the switch is connected to a different power source with a new power
cord, the power supply is probably faulty.
If a second power supply is available, install it in the second power supply bay, and contact a customer service
representative for further instructions.
Step 2
If you have a second power supply, repeat Step 1 for this power supply.
What to do next
If you are unable to resolve the problem or if you determine that either a power supply or backplane connector
is faulty, see
Contacting Cisco Customer Service, on page 82
Troubleshooting the Fan Tray
To isolate a fan tray problem, follow these steps:
Procedure
Step 1
Verify that the FAN LED on the fan tray is green.
If the FAN LED is not green, see
Contacting Cisco Customer Service, on page 82
to determine whether or
not the power subsystem is functioning properly.
Step 2
Check to determine if the FAN LED is amber. If the FAN LED is amber, the fan tray is not seated in the
backplane or has malfunctioned.
Do the following:
• To ensure that the fan tray is seated properly, loosen the captive installation screws, remove the fan tray,
and reinstall it.
• Tighten all captive installation screws, and then restart the system.
• If the FAN LED is still amber, the system detects an individual fan failure. Contact a customer service
representative for instructions.
Catalyst 6840-X Switch Series Hardware Installation Guide
81
Troubleshooting
Troubleshooting the Fan Tray
Содержание Catalyst 6816-X-LE
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Страница 32: ...Catalyst 6840 X Switch Series Hardware Installation Guide 20 Product Overview Rear Panel ...
Страница 64: ...Catalyst 6840 X Switch Series Hardware Installation Guide 52 Installing the Switch Online Diagnostics ...
Страница 96: ...Catalyst 6840 X Switch Series Hardware Installation Guide 84 Troubleshooting Finding the Serial Number ...