Connecting Dc Power To A Qfx5100 Device - Juniper QFX5110 Series Hardware Documentation

7. Insert the power cord plug into an AC power source outlet.
8. If the AC power source outlet has a power switch, set it to the ON (|) position.
9. Verify that the AC and DC LEDs on each power supply are lit green.
If the amber fault LED is lit, remove power from the power supply, and replace the power supply (see
"Removing a Power Supply from a QFX5100 Device" on page 432
until you have a replacement power supply ready: the power supplies or a blank cover panel must be
installed in the switch to ensure proper airflow.
CAUTION:
within 1 minute of removal to prevent chassis overheating.
CAUTION:
successfully boot the Junos OS software. In case of a system reboot failure, you
need to power cycle the switch. To check the current FPGA version, issue the show
chassis firmware command.
RELATED DOCUMENTATION
AC Power Supply for a QFX5100 Device
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Connecting DC Power to a QFX5100 Device

The QFX5100 is shipped from the factory with two power supplies. Each power supply is a hot-removable
and hot-insertable field-replaceable unit (FRU) when the second power supply is installed and running.
You can install replacement power supplies in the two slots next to the fan modules without powering off
the switch or disrupting the switching function.
WARNING:
restricted access location.
Replace a failed power supply with a blank panel or new power supply
A system reboot with Routing Engine FPGA version 7.1 might not
DC-powered QFX5100 devices are intended for installation only in a
). Do not remove the power supply
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