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Mounting a QFX5110 in a Rack

You can mount a QFX5110 on a four-post 19-in. rack using the mounting kit provided with the switch.

Space the front and rear rack rails between 23.5 in. (59.7 cm) to 30.6 in. (77.7 cm) front-to-back.

This topic describes:

Before You Begin Rack Installation

Before you begin mounting a QFX5110 switch in the rack:

  1. Ensure that you understand how to prevent electrostatic discharge (ESD) damage. See Prevention of Electrostatic Discharge Damage.
  2. Verify that the site meets the requirements described in QFX5110 Site Preparation Checklist.
  3. Place the rack in its permanent location, allowing adequate clearance for airflow and maintenance, and secure it to the building structure.
  4. Read General Site Guidelines, and the QFX5110 Installation Safety Guidelines.
  5. Remove the switch from the shipping carton.
  6. Ensure that you have the following parts and tools available to mount the switch in a rack:

    • ESD grounding strap (not provided).

    • Rack Mount Kit (provided).

    • Appropriate screwdriver for the mounting screws (not provided).

    • Two power cords with plugs appropriate to your geographical location (provided).

    • RJ-45 cable and RJ-45 to DB-9 serial port adapter (not provided).

    • Management host, such as a PC laptop, with a serial port (not provided).

Optional equipment: grounding cable kit with bracket, lug, and two screws and washers.

CAUTION:

All QFX5110 switches require two people for installation, one person to lift the switch into place and another person to attach the switch to the rack. If you are installing the QFX5110 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 switch.
CAUTION:

If you are mounting multiple switches on a rack, mount the switch in the lowest position of the rack first. Proceed to mount the rest of the switches from the bottom to the top of the rack to minimize the risk of the rack toppling.

Mount a QFX5110 in a Rack or Cabinet by Using the JNP-4PST-RMK-1U-E Rack Mount Kit

You can mount the QFX5110 switches on a square hole or threaded hole four-post 19-in. racks using the partial tool less JNP-4PST-RMK-1U-E rack mount kit which is available as a spare.

JNP-4PST-RMK-1U-E rack mount kit consists of the following parts:

  • A pair of front and rear mounting rails

  • A pair of mounting brackets

  • 16 flat head M4 x 6mm Phillips screws

A four-post installation evenly supports the device by all four corners.

Mount the Device by Using the JNP-4PST-RMK-1U-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 that attach to the rack posts—provided with the rack mount kit

  • A pair of 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

To mount the device on four posts in a rack by using the JNP-4PST-RMK-1U-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 bracket into the front bracket. 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. 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 rails to open position, slide the front mounting rails, 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 Rails Lock Latch Front Mounting Rails Lock Latch
    4. Visually ensure that the front and rear latches are locked into place on the mounting rails. See Figure 6.
      Figure 6: Mounting Rails Installed and Locked Mounting Rails Installed and Locked
  4. Attach mounting brackets to the device if not pre-installed. If your device already has the mounting brackets pre-installed than skip this step and move to the next step.
    1. Align the holes on the mounting bracket with the screw holes on the side panel of the chassis.
    2. Insert the flat head M4 x 6mm Phillips screws to attach the mounting bracket into the aligned holes on the chassis (see Figure 7). Tighten the screws.
      Figure 7: Attach the Mounting Brackets to the Device Attach 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. Grasp both sides of the device, lift it, and position the device such that the mounting rails slide into the channels of the mounting brackets. 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 the Thumb Screws Tighten the Thumb Screws

Mount the Device by Using the JNP-4PST-RMK-1U-E Rack Mount Kit On a Threaded 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 that attach to the 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

To mount the device on four posts in a threaded hole rack by using the JNP-4PST-RMK-1U-E rack mount kit:

  1. Wrap and fasten the ESD grounding strap to your bare wrist and connect the other end of the strap to the ESD point on the device.
  2. Assemble the mounting rails.
    1. Remove the guide blocks from the front mounting rails by loosening the screws and preserve them for later use. See Figure 10.
      Figure 10: 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. Preserve the guide blocks, screws, and washers for later use. See Figure 11
      Figure 11: Remove Guide Blocks from Rear Floating Rail Remove Guide Blocks from Rear Floating Rail
    3. Slide the rear floating rails into the front mounting rails. See Figure 12.
      Figure 12: Slide Rear Floating Rail into Front Mounting Rail Slide Rear Floating Rail into Front Mounting Rail
    4. Mounting rails assembled. See Figure 13.
      Figure 13: Front and Rear Rails Assembled Front and Rear Rails Assembled
  3. Attach the mounting rails to the threaded hole rack.
    1. 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 14.
      Figure 14: Install the Rear Floating Rails Install the Rear Floating Rails
    2. Move the latch locks on the front mounting rails to open position, slide the front mounting rails and align them to the front rack post. Push the lock latch to locked position and using the screws removed in step 2.a and the washers removed in step 2.b, secure the front mounting rails to the front rack post. See Figure 15.
      Figure 15: Install the Front Mounting Rails Install the Front Mounting Rails
    3. Secure the rear floating rails to the rear rack post by using screws (not provided) appropriate for your rack threaded size. See Figure 16.
      Figure 16: Secure the Rear Floating Rails Secure the Rear Floating Rails
    4. Visually ensure that the front and rear latches are locked into place on the mounting rails. See Figure 17.
      Figure 17: Mounting Rails Installed and Secured Mounting Rails Installed and Secured
  4. Attach mounting brackets to the device if not pre-installed. If your device already has the mounting brackets pre-installed than skip this step and move to the next step.
    1. Align the holes on the mounting bracket with the screw holes on the side panel of the chassis.
    2. Insert the flat head M4 x 6mm Phillips screws to attach the mounting bracket into the aligned holes on the chassis (see Figure 18). Tighten the screws.
      Figure 18: Attach the Mounting Brackets to the Device Attach 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. Grasp both sides of the device, lift it, and position the device such that the mounting rails slide into the channels of the mounting brackets. See Figure 19.
    Figure 19: Slide the Device into the Rack Slide the Device into the Rack
  7. Tighten the two thumbscrews to secure the device. See Figure 20.
    Figure 20: Tighten Thumb Screws Tighten Thumb Screws