Figure 44: AC Power Supply LEDs on an EX4600 Switch
Table 41 on page 195 describes the LEDs on the AC power supplies.
Table 41: AC Power Supply LEDs on a EX4600 Switch
DescriptionStateColorLED
The power supply is disconnected from power, or power is not coming
into the power supply.
OffUnlitAC OK
Power is coming into the power supply.On steadilyGreen
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 in an EX4600 Switch on page 23•
• Connecting AC Power to an EX4600 Switch on page 147
DC Power Supply LEDs on an EX4600 Switch
Figure 45 on page 196 shows the location of the LEDs on the DC power supply.
195Copyright © 2014, Juniper Networks, Inc.
Chapter 23: Viewing System Information
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