Table 19: AC Power Supply LEDs on a QFX5100 Switch (continued)
DescriptionStateColorLED
The power supply is disconnected from power, or the power supply is
not sending out power correctly.
OffUnlitDC OK
The power supply is sending out power correctly.On steadilyGreen
An error has been detected in the power supply. Replace the power
supply as soon as possible. To maintain proper airflow through the
chassis, leave the power supply installed in the chassis until you are
ready to replace it.
On steadilyAmberFault
NOTE: If the AC OK LED and the DC OK LED are unlit, either the AC power
cord is not installed properly or the power supply fuse has failed. If the AC
OK LED is lit and the DC OK LED is unlit, the AC power supply is installed
properly, but the power supply has an internal failure.
Related
Documentation
AC Power Supply for a QFX5100 Device on page 47•
• Connecting AC Power to a QFX5100 Device on page 171
DC Power Supply LEDs on a QFX5100 Device
Figure 38 on page 62 shows the location of the LEDs on the DC power supply.
Figure 38: DC Power Supply Faceplate on a QFX5100 Switch
3—1— Fault LEDInput LED
2—Output LED
CAUTION: The V+ terminals are shunted internally together, as are the V-
terminals. The same polarity terminal can be wired together from the same
source to provide an additional current path in a higher power chassis. Do
not connect the terminals to different sources.
Copyright © 2016, Juniper Networks, Inc.62
QFX5100 Switch Hardware Guide
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