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Fast Track to Rack Installation and Power

SUMMARY This procedure walks you through the most basic steps for installing your QFX5220 switch in a rack and connecting it to power.

You can install the QFX5220-32CD switch on a 19-in. four-post rack or cabinet using the QFX5K-4PST-RMK-E rack mount kit (RMK). We’ll walk you through the steps to install the QFX5220-32CD switch on a square hole rack using the QFX5K-4PST-RMK-E RMK.

You can install a QFX5220-128C in a four post rack by using the QFX5220-4PRMK-4U rack mount kit. See Mount a QFX5220-128C in a Four Post Rack by Using the QFX5220-4PRMK-4U Rack Mount Kit.

Before you install the switch, review:

Mount the Device by Using the QFX5K-4PST-RMK-E Rack Mount Kit On a Square Hole Rack

Ensure that you have the following tools and parts available:

  • An ESD grounding strap—not provided.

  • Number 2 Phillips (+) screwdriver—not provided

  • A pair of front and rear mounting rails. These mounting rails attach to the front and rear rack posts—provided with the rack mount kit

  • A pair of side mounting brackets and 16 flat head M4 x 6mm Phillips screws. These brackets attach to the device if not pre-installed—provided with the rack mount kit

  • A pair of Spacers—provided with the rack mount kit

To mount the device on four posts in a rack by using the QFX5K-4PST-RMK-E rack mount kit:

  1. Wrap and fasten the ESD grounding strap to your bare wrist and an connect the other end of the strap to the ESD point on the device.
  2. Assemble the mounting rails.
    1. Slide the rear floating rails into the front rails. See Figure 1.
      Figure 1: Assemble the Mounting Rails Assemble the Mounting Rails
    2. Mounting rails assembled. See Figure 2.
      Figure 2: Front and Rear Rails Assembled Front and Rear Rails Assembled
  3. Attach the mounting rails to the rack.
    1. Standing in front of the rack, align the guide blocks of the rear mounting rails with the rear-post holes. Pull the rear mounting rails toward the front of the rack to lock the rails in place. You will hear a click sound when the latch locks into the corresponding rack holes. See Figure 3.
      Figure 3: Install the Rear Floating Rails Install the Rear Floating Rails
    2. Move the latch lock on the front mounting rail to open position, slide the front mounting rail, and insert the guide blocks into the front rack posts. See Figure 4.
      Figure 4: Install the Front Mounting Rails Install the Front Mounting Rails
    3. Push the lock latch to the locked position. See Figure 5.
      Figure 5: Front Mounting Rail's Lock Latch Front Mounting Rail's Lock Latch
    4. Visually ensure that the front and rear latches are locked into place on the mountingrails. See Figure 6.
      Figure 6: Mounting Rails Installed and Locked Mounting Rails Installed and Locked
  4. Attach the spacers and the mounting brackets to the device if not pre-installed. If your device already has the spacers and mounting brackets pre-installed than skip this step and move to the next step.
    1. Align the holes on the spacer and the mounting bracket with the screw holes that are on the side panel of the chassis.
    2. Insert the flat head M4 x 6mm Phillips screws to attach the spacer and the mounting bracket into the aligned holes on the chassis (see Figure 7). Tighten the screws.
      Figure 7: Attach the Spacers and the Mounting Brackets to the Device Attach the Spacers and the Mounting Brackets to the Device
  5. Position the device in such a manner that the AIR OUT labels on components are next to the hot aisle.
  6. Lift the device and position it in the rack, aligning the side mounting brackets with the mounting rails. Slide the device into the channels of the rack mounting rails. See Figure 8.
    Figure 8: Slide the Device into the Rack Slide the Device into the Rack
  7. Tighten the two thumbscrews to secure the device. See Figure 9.
    Figure 9: Tighten Thumb Screws Tighten Thumb Screws

Connect to Power

To connect the QFX5220-128C switch to AC power, you must perform the following tasks:

Ground the QFX5220-128C

To connect earth ground to a QFX5220-128C:

  1. Use two SAE 10-32 x 0.25 in. screws with number10 split-lock washers (not provided) to secure the grounding lug and attached cable (not provided) to the FRU panel of the chassis. The posts on the grounding lug should point to the right. See Figure 10.
    Figure 10: Connecting a Grounding Cable to a QFX5220-128C Connecting a Grounding Cable to a QFX5220-128C
  2. Connect the remaining end of the grounding cable to a proper earth ground, such as the rack in which the switch is mounted.
  3. Dress the grounding cable. Ensure that it does not touch or block access to other device components and does not drape where people could trip over it.

Connect Power to the QFX5220-128C

The QFX5220-128C is shipped from the factory with four power supplies. Each power supply is a hot-removable and hot-insertable field-replaceable unit (FRU) when the second power supply is installed and running. You can install a replacement power supply in either of the two slots next to the fan modules without powering off the switch or disrupting the switching function.

To connect AC power to a QFX5220-128C:

  1. Attach the grounding strap to your bare wrist and to a site ESD point.
  2. Ensure that the power supplies are fully inserted in the chassis and the latches are secure.
  3. Locate the power cords shipped with the switch; the cords have plugs appropriate for your geographical location.

    For each power supply:

    1. Ensure the loop on the power cord retainer is open. There must be enough space to insert the power cord coupler into the inlet. If the loop is closed, press the small tab on the retainer to loosen the loop.
    2. Thread the power cord coupler through the power cord retainer loop.
    3. Insert the power cord coupler firmly into the AC inlet on the power supply faceplate.
    4. Slide the power cord retainer 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 to enclose the power cord. See Figure 11.
    Figure 11: Attaching the Power Cord Retainer Attaching the Power Cord Retainer
    Warning:

    Ensure that the power cord does not block access to device components or drape where 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. The device has no power switch.
  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.