Part 4: Connect Power To The Switch - Juniper QFX5120 Series Quick Start Manual

Part 4: Connect Power to the Switch

Depending on the model of your switch, you can use either AC or DC power supplies. The power supplies are installed in
the slots on the rear panel.
Before you connect power to the switch, wrap and fasten one end of an ESD wrist strap around your bare wrist, and
connect the other end of the strap to the ESD point on the switch.
To connect power to an AC-powered switch (see
1. Push the end of the retainer strip into the hole next to the inlet on the power supply faceplate until it snaps into place.
2. Press the tab on the retainer strip to loosen the loop. Slide the loop until you have enough space to insert the power
cord coupler into the inlet.
3. Insert the power cord coupler firmly into the inlet.
4. Slide the loop toward the power supply until it is snug against the base of the coupler.
5. Press the tab on the loop, and draw out the loop into a tight circle.
6. 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 switch.
7. Insert the power cord plug into the power source outlet.
8. If you are installing the power supply in a QFX5120-32C switch, verify that the LED on the power supply is lit green.
If the LED is lit in red or is blinking, remove power from the power supply, and replace the power supply.
Figure 15: Connecting Power to an AC-Powered QFX5120-32C Switch
9. If you are installing the power supply in a QFX5120-48Y switch, verify that the AC and DC LEDs on the power supply
are lit green. If the fault LED is lit, remove power from the power supply, and replace the power supply.
Figure 16 and Figure 15):
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