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Maintain the QFX5130 Power System

A QFX5130-power supply unit (PSU) is a hot-removable and hot-insertable field-replaceable unit (FRU). You can install replacement power supplies without powering off the switch or disrupting the switching function.

Remove a Power Supply Unit from QFX5130 Switches

QFX5130 switches are shipped from the factory with two power supplies.

Before you remove a power supply unit from a QFX5130 switch, ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention of Electrostatic Discharge Damage).

Ensure that you have the following parts and tools available to remove a power supply from a QFX5130 switch:

  • ESD grounding strap

  • Antistatic bag or an antistatic mat

  1. Place the antistatic bag or the antistatic mat on a flat, stable surface.
  2. Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD point on the chassis.
    Note:

    If only one power supply is installed in your QFX5130 switch, you must power off the switch before removing the power supply. See Power Off a QFX5130 Switch.
  3. Disconnect power to the switch:

    • AC power supply—If the AC power source outlet has a power switch, set it to the OFF (O) position. If the AC power source outlet does not have a power switch, gently pull out the plug end of the power cord connected to the power source outlet.

    • DC power supply—Switch the circuit breaker on the panel board that services the DC circuit to the Off position.

  4. Remove the power source cable from the power supply faceplate:

    • AC power supply—Remove the power cord from the power supply faceplate by detaching the power cord retainer and gently pulling out the socket end of the power cord connected to the power supply faceplate.

    • DC power supply:

      1. Remove the screws that secure the ring lugs to the terminals by using a screwdriver.

      2. Replace the screws to each terminal and tighten the screws by using a screwdriver.

  5. Slide the locking lever toward the handle until it stops.
  6. Grasp the power supply handle and pull firmly to slide the power supply unit halfway out of the chassis. Figure 1shows how to remove an AC power supply unit from a QFX5130-32CD switch. Figure 2shows how to remove an AC power supply unit from a QFX5130-48C switch. Figure 3 shows how to remove a DC power supply unit from a QFX5130-32CD switch. Figure 4 shows how to remove a DC power supply unit from a QFX5130-48C switch.
    Figure 1: Remove an AC Power Supply Unit from a QFX5130-32CD/QFX5130E-32CD Switch Remove an AC Power Supply Unit from a QFX5130-32CD/QFX5130E-32CD Switch
    Figure 2: Remove an AC Power Supply Unit from a QFX5130-48C Switch Remove an AC Power Supply Unit from a QFX5130-48C Switch
    Figure 3: Remove a DC Power Supply Unit from a QFX5130-32CD/QFX5130E-32CD Switch Remove a DC Power Supply Unit from a QFX5130-32CD/QFX5130E-32CD Switch
    Figure 4: Remove a DC Power Supply Unit from a QFX5130-48C Switch Remove a DC Power Supply Unit from a QFX5130-48C Switch
  7. Place one hand under the power supply unit to support it and slide it completely out of the chassis. Take care not to touch power supply components, pins, leads, or solder connections.
  8. Place the power supply in the antistatic bag or on the antistatic mat placed on a flat, stable surface.
  9. Replace with another power supply module.

Install an AC Power Supply Unit in QFX5130 Switches

  • Before you install a power supply in QFX5130 switches, ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention of Electrostatic Discharge Damage).

  • Ensure that the airflow direction of the power supply is the same as the chassis. Labels on the power supply handle indicate the direction of airflow. SeeQFX5130 Cooling System for more information.

To install a power supply in a QFX5130:

  1. Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD point on the chassis.
  2. Take care not to touch power supply components, pins, leads, or solder connections as you remove the power supply from its bag.
    CAUTION:

    Verify that the direction of the arrow on the power supply handle matches the direction of airflow in the chassis. Ensure that each power supply you install in the chassis has the same airflow direction. If you install power supplies with two different airflow directions, Junos OS raises an alarm, and the status (ALM) LED blinks amber.

  3. If the power supply has a protective plastic wrap, peel and remove the plastic wrap from all four sides of the power supply.
  4. Using both hands, place the power supply in the power supply slot on the FRU panel of the switch and slide it in until it is fully seated and the locking lever slides into place. Figure 6 shows how to install an AC power supply unit in a QFX5130-32CD switch. Figure 4 shows how to install an AC power supply unit in a QFX5130-48C switch.
Figure 5: Install an AC Power Supply Unit in a QFX5130-32CD/QFX5130E-32CD Switch Install an AC Power Supply Unit in a QFX5130-32CD/QFX5130E-32CD Switch
Figure 6: Install an AC Power Supply Unit in a QFX5130-48C Switch Install an AC Power Supply Unit in a QFX5130-48C Switch
Note:

You must connect each power supply to a dedicated power source outlet.

Note:

If you have a Juniper Care service contract, register any addition, change, or upgrade of hardware components at https://www.juniper.net/customers/support/tools/updateinstallbase/. Failure to do so can result in significant delays if you need replacement parts. This note does not apply if you replace existing components with the same type of component.

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