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QFX10000 Fan Tray LEDs and Fan Tray Controller LEDs
Copyright © 2019, Juniper Networks, Inc.
Figure 19: Airflow Through a QFX10008
The fan tray continues to operate indefinitely and provide sufficient cooling even when
a single fan fails, provided the room temperature is within the operating range. You can
check the status of fans by viewing the LEDs on each fan tray.
You cannot replace a single fan. If one or more fans fail, you must replace the entire fan
tray.
In addition to the fan trays, there is an internal fan in each power supply.
QFX10000 Field-Replaceable Units on page 35
Each fan tray has a set of LEDs, and each corresponding fan tray controller also has a
set of LEDs. This topic covers:
Fan Tray LEDs on page 45
Fan Tray Controller LEDs on page 49
Fan Tray LEDs
The two fan trays have a set of LEDs that represent the status of the fans in the fan tray,
the fan tray controller, and the three Switch Interface Boards (SIBs). The fan tray LEDs
are located in the top left corner of each fan tray.
of the LEDs on the fan tray.
Chapter 1: Overview
Figure 20 on page 46
shows the location
45
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