Connecting Dc Power To A Qfx5120 Switch - Juniper QFX5120 Series Hardware Manual

Figure 48: Connecting Power to an AC-Powered QFX5120-48Y Switch
Figure 49: Connecting Power to an AC-Powered QFX5120-32C Switch
6. The switch powers on as soon as power is provided to the power supply. There is no power switch on
the device.
7. Insert the power cord plug into an AC power source outlet.
8. 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. Do
not remove the power supply 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 one minute of removal to prevent chassis overheating.

Connecting DC Power to a QFX5120 Switch

The QFX5120 is shipped from the factory with two 650 W power supplies. Each power supply is a
hot-removable and hot-insertable field-replaceable unit (FRU) when the second power supply is installed
Replace a failed power supply with a blank panel or new power supply
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