Juniper QFX5220-128C Quick Start Manual page 7

c. Insert the power cord coupler firmly into the AC inlet on the power supply faceplate.
d. Slide the power cord retainer loop towards the power supply until it is snug against the base of the coupler.
e. Press the tab on the loop and draw out the loop to enclose the power cord. See
Figure 6: Attaching the Power Cord Retainer
WARNING:
people can trip on it.
4. If the AC power source outlet has a power switch, set it to the OFF (O) position.
NOTE: The switch powers on as soon as power is provided to the power supply. There is no power switch on
the device.
5. Insert the power cord plug into an AC power source outlet.
6. If the AC power source outlet has a power switch, set it to the ON (|) position.
7. 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 How to Remove
a Power Supply from a QFX5220). Do not remove the power supply until you have a replacement power supply ready:
the power supplies must be installed in the switch to ensure proper airflow.
CAUTION:
to prevent chassis overheating.
Ensure that the power cord does not block access to device components or drape where
Replace a failed power supply with a new power supply within three minutes of removal
Figure 6.
7