The fan tray contains four high-efficiency fans with variable speed settings and thermal sensors. If one fan
fails, the speed of the others is increased and a minor alarm is triggered. If a major fan tray failure occurs, the
system is shut down. The individual fans are not field replaceable; the entire fan tray must be replaced in the
event of a major fan tray failure. See Removing the Fan Tray, on page 61 for additional information about
the fan.
Related Topics
Front Panel Components
Fan Tray LED, on page 17
LED Indicators
You can use the switch LEDs to monitor switch activity and performance. You can also monitor the status of
the fan tray assembly, and the power supplies.
Catalyst 6840-X Switch Series Hardware Installation Guide
15
Product Overview
LED Indicators
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