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Install the QFX5140

This topic guides you through the steps to install the QFX5140 on four-post racks.

You can mount the QFX5140:

  • On four posts of a 19-in. rack. A four-post rack mounting kit is included with the QFX5140 shipment.

Complete these prerequisites before you mount the device:

CAUTION:

  • A qualified technician must verify that the rack or cabinet is strong enough to support the device's weight before mounting the device. Have the technician also verify that the rack or cabinet has adequate support at the installation site.

  • If you are installing more than one device on a rack or in a cabinet, install the first device at the bottom of the rack.
CAUTION:

QFX5140 requires two people for installation, one person to lift the device into place and another person to attach the device to the rack. If you are installing the QFX5140 above 60 in. (152.4 cm) from the floor, you can remove the power supplies and fan modules to minimize the weight before attempting to install the QFX5140. A fully loaded chassis (with an AC power supply) weighs approximately 24.5 lb (11.1 kg).
Note:

Ensure that you support the rear of the chassis throughout the process of mounting the device on the rack.

Mount the QFX5140 on a Four-Post Square-Holed Rack Using the JNP-4P-TL-1RU-RMK

Mount the QFX5140 on a four-post square-holed rack on your site by following the recommended procedure below.

Ensure that you have the following tools and parts available:

  • An ESD grounding strap (provided)

  • A pair of front-mounting and rear-floating rails (provided with the RMK)

    These mounting rails attach to the front and rear rack posts.

  • A pair of chassis brackets (provided with the RMK)

    You must attach these brackets to the device if not preinstalled.

Note:

Juniper provides the four-post rack mounting kit (JNP-4P-TL-1RU-RMK) with the QFX5140. If the four-post kit is lost or damaged, you can order a replacement.

To mount the device on four posts of a square-holed rack using the JNP-4P-TL-1RU-RMK rack mount kit:

  1. Wrap and fasten one end of the ESD cable grounding strap around your bare wrist. Connect the other end to a site ESD point.
  2. Install the chassis bracket to the chassis by aligning the keyholes on the chassis bracket with the shoulder screws on the chassis. Slide the chassis bracket toward the rear of the chassis.
    Figure 2: Install the Chassis Brackets Install the Chassis Brackets
  3. Assemble the mounting rails by sliding the rear-floating rails into the respective front-mounting rails.
    Figure 3: Assemble the Mounting Rails Assemble the Mounting Rails
  4. Install the mounting rails on the four-post rack:
    1. Use the guide pin to align the guide blocks of the rear-floating rails with the corresponding rear post holes. Pull the rear-floating rails toward the front of the rack to lock the rail in place. You will hear a distinct click sound when the latch locks into the corresponding rack holes.
      Figure 4: Secure Rear-Floating Rails Secure Rear-Floating Rails
    2. Align the guide blocks of the front-mounting rails with the front post holes. Push the front-mounting rails toward the rear of the rack to lock the rails in place. You will hear a distinct click sound when the latch locks into the corresponding rack holes.
      Figure 5: Secure Front-Mounting Rails Secure Front-Mounting Rails
      Figure 6: Both Mounting Rails Installed and Secured Both Mounting Rails Installed and Secured
    3. Visually confirm that you have locked the front and rear latches into the mounting rails. The mounting rails should now be securely installed on the rack.
  5. Lift the device and position it in the rack, aligning the chassis brackets with the mounting rails. Slide the device all the way into the channels of the rack mounting rails.
    Note:

    In an AFO configuration, the chassis is installed with its front panel facing the front of the rack.
    Figure 7: Slide the QFX5140 into the Rack (for AFO configuration) Slide the QFX5140 into the Rack (for AFO configuration)
    Note:

    In an AFI configuration, the chassis is installed with its rear panel facing the front of the rack and its front panel facing the rear. This orientation may appear unusual, but it is required for proper AFI airflow.
    Figure 8: Slide the QFX5140 in the Rack Slide the QFX5140 in the Rack
  6. Tighten the two thumbscrews (in a clockwise direction) to secure the device.
    Figure 9: Tighten the Thumbscrews Tighten the Thumbscrews

Mount the QFX5140 on a Four-Post Round-Holed Rack Using the JNP-4P-TL-1RU RMK

Mount the QFX5140 on a four-post threaded-holed rack on your site by following the recommended procedure below.

Ensure that you have the following tools and parts available:

  • An ESD grounding strap (provided)

  • A Philips (+) screwdriver, number 2 (not provided)

  • Eight screws appropriate for your rack to attach the mounting rails to the rack posts (not provided)

  • A pair of front-mounting and rear-floating rails (provided with the RMK)

    These mounting rails attach to the front and rear rack posts.

  • A pair of chassis brackets (provided with the RMK)

    You must attach these brackets to the device.

Note:

Juniper provides the four-post rack mounting kit (JNP-4P-TL-1RU) with the QFX5140. If the four-post kit is lost or damaged, you can order a replacement.

To mount the QFX5140 on four posts of a threaded-hole rack using the JNP-4P-TL-1RU rack mount kit:

  1. Review the General Safety Guidelines and Warnings.
  2. Wrap and fasten one end of the electrostatic discharge (ESD) cable grounding strap around your bare wrist. Connect the other end to a site ESD point.
  3. Install the chassis bracket to the chassis by aligning the keyholes on the chassis bracket over the shoulder screws on the chassis. Slide the chassis bracket toward the rear of the chassis.
    Figure 10: Attach the Chassis Brackets Attach the Chassis Brackets
  4. Assemble the mounting rails:
    1. Remove the guide blocks from the front-mounting rails by loosening the screws and washers.
      Tip:

      Retain the guide blocks, screws, and washers for later use.
      Figure 11: Remove Guide Blocks from Front-Mounting Rail Remove Guide Blocks from Front-Mounting Rail
    2. Remove the guide blocks from the rear-floating rails by loosening the screws and washers.
      Tip:

      Retain the guide blocks, screws, and washers for later use.
      Figure 12: Remove Guide Blocks from Rear-Floating Rail Remove Guide Blocks from Rear-Floating Rail
    3. Slide the rear-floating rails into the front rails.
      Figure 13: Assemble the Mounting Rails Assemble the Mounting Rails
  5. Install the mounting rails on the four-post rack:
    1. Align and insert the guide pins of the rear-floating rails into the corresponding rear-post holes. Pull the rear-floating rails toward the front of the rack to lock the rails in place. You will hear a distinct click sound when each latch locks into the corresponding rack hole.
      Figure 14: Install Rear-Floating Rails Install Rear-Floating Rails
    2. Align and insert the guide pins of the front-mounting rails into the corresponding front-post holes. Push each front-mounting rail into the corresponding front-post hole toward the rear of the rack to lock the rails in place. You will hear a distinct click sound when each latch locks into the corresponding rack hole.
    3. Secure the front-mounting rails to the front rack post by using screws (not provided) appropriate for the thread size of your rack.
      Figure 15: Secure the Front-Mounting Rails Secure the Front-Mounting Rails
    4. Secure the rear-floating rails to the rear rack post by using screws (not provided) appropriate for the thread size of your rack.
      Figure 16: Secure the Rear-Floating Rails Secure the Rear-Floating Rails
    5. Visually confirm that you have locked the front and rear latches of the mounting rails into the rack posts. The mounting rails should now be securely installed on the rack.
      Figure 17: Both Mounting Rails Installed and Secured Both Mounting Rails Installed and Secured
  6. Lift the device and position it in the rack, aligning the chassis brackets with the mounting rails. Slide the device all the way into the channels of the mounting rails.
    Figure 18: Slide the QFX5140 into the Rack Slide the QFX5140 into the Rack
  7. Tighten the two thumbscrews (in a clockwise direction) to secure the device.
    Figure 19: Tighten the Thumbscrews Tighten the Thumbscrews