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Replace Power Supply Units on the QFX5140

Maintaining the QFX5140 includes removing and installing the power supply units (PSUs).

The power supply units (PSUs) on the QFX5140 are hot-removable and hot-insertable field-replaceable units (FRUs) with support for 1+1 redundancy. You can remove and replace a PSU without powering off the QFX5140 or disrupting the device functions.

CAUTION:

Do not mix AC and DC power supplies within the same chassis, and avoid combining AFO and AFI modules in a single system configuration.
Note:

Per TSB #XYZ, PSU redundancy support depends on the unit's production date. Early production units support PSU redundancy only with high-line input power (200–240 VAC), while all later production units support PSU redundancy with both low-line (100–127 VAC) and high-line (200–240 VAC) AC input power.

Before you remove or install a PSU, ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage.

Ensure that you have the following parts and tools:

  • An ESD grounding strap

  • An antistatic bag or an antistatic mat

  • A replacement PSU

  • A blank cover panel (in case you're not replacing the PSU)

  • (For DC power supply) Philips (+) screwdriver, number 2

Replace an AC PSU on the QFX5140

Remove the JPSU-1600W-1UACAFO

This topic guides you through the steps to remove the JPSU-1600W-1UACAFO AC power supply from the QFX5140 Switch.

CAUTION:

Avoid leaving the PSU slot empty for more than 30 minutes when the device is operational. For optimal airflow, all PSUs must be installed in the chassis.
CAUTION:

If you need to replace all the power supplies installed in your QFX5140, you must power off the QFX5140 before removing the power supplies.

To remove the JPSU-1600W-1UACAFO:

  1. Wrap and fasten one end of the ESD cable grounding strap around your bare wrist and connect the other end to a site ESD point.
  2. Place the antistatic bag or the antistatic mat on a flat, stable surface.
  3. If the AC power source outlet has a power switch, set it to the off (O) position.
  4. Unplug the power cord that is connected to the power source outlet.
  5. Unplug the power cord from the device inlet of the PSU.
  6. Press the release latch located on the right side of the PSU toward the left side (see Figure 1 ).
  7. Pull the PSU straight out of the chassis.
    Figure 1: Remove the AC PSU Remove the AC PSU
  8. Place the PSU in the antistatic bag or on the antistatic mat.
  9. If you are not immediately replacing the PSU, install the cover panel over the PSU slot on the chassis.

Install the JPSU-1600W-1UACAFO

To install the JPSU-1600W-1UACAFO:

  1. Wrap and fasten one end of the ESD cable grounding strap around your bare wrist and connect the other end to a site ESD point.
  2. If the PSU slot in the chassis has a cover panel on it, remove the cover panel. Save the cover panel for subsequent use.
  3. Taking care not to touch the pins, leads, or solder connections on the PSU, remove the PSU from the bag.
  4. Using both hands, place the PSU in the PSU slot on the rear panel of the router. Slide the PSU straight into the chassis until the PSU is fully seated in the chassis slot and the release latch slides into place. Ensure that the PSU faceplate is flush with the adjacent PSU faceplate. See Figure 2.
    Figure 2: Install the AC PSU Install the AC PSU
  5. Connect the power cord (see Connect the QFX5140 to Power).
    Note:

    Each power supply must be connected to a dedicated power source outlet.