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Unpack and Mount the QFX5120 Switch

Unpack the QFX5120 Switch

We ship QFX5120 switches in a cardboard carton, secured with foam packing material.

CAUTION:

QFX5120 switches are maximally protected inside the shipping carton. Do not unpack the switches until you are ready to mount the switch.

To unpack the switch:

  1. Move the shipping carton to a staging area as close to the installation site as possible, but where you have enough room to remove the system components.
  2. Position the carton so that the arrows marked on the carton are pointing up.
  3. Open the top flaps on the shipping carton.
  4. Pull out the packing material holding the switch in place.
  5. Verify the parts received against the inventory on the label attached to the carton.
  6. Save the shipping carton and packing materials in case you need to move or ship the switch later.

Parts Inventory (Packing List) for a QFX5120 Switch

The switch shipment includes a packing list. Check the parts you receive with the switch against the items in the packing list. The packing list specifies the part number and provides a description of each part in your order. The parts shipped depend on the switch model you order.

If any part in the packing list is missing, contact your customer service representative or contact Juniper customer care from within the U.S. or Canada by telephone at 1-888-314-5822. For international-dial or direct-dial options in countries without toll-free numbers, see https://www.juniper.net/support/requesting-support.html .

Table 1 lists the parts and their quantities as in the standard packing list for a QFX5120 switch.

Table 1: Inventory of Components Provided with a QFX5120 Switch

Component

Quantity

Switch

1

Fan modules

QFX5120-32C

6 preinstalled

QFX5120-48T, QFX5120-48Y, and QFX5120-48YM

5 preinstalled

Power supplies

2 (AC or DC) preinstalled

AC power cords appropriate for your geographical location for AC-powered models

2

Two-post rack mount kit

QFX5120-32C

(QFX5K-2PST-RMK)

  • Front mounting brackets—2

  • Side mounting rails—2

  • Flat head M4X8 screws to attach the front mounting brackets and side mounting rails to the switch chassis—20

  • Rear mounting (L-shaped) brackets—2

  • Pan head M4X8 screws to attach the rear mounting brackets to the side mounting rails—2

Four-post rack mount kit - QFX5120-48T, QFX5120-48Y, and QFX5120-48YM

Rack mount kit - JNP-4PST-RMK-1U-E (Partial toolless RMK)

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

Spare rack mount kits order numbers

  • JNP-4PST-RMK-1U-E

  • EX-4PST-RMK

1

Four-post tool less rack mount kit - QFX5120-32C

QFX5120-32C-RMK-E

Rack mount kit - QFX5120-32C-RMK-E (Toolless RMK)

QFX5120-32C-RMK-E rack mount kit consists of the following parts:

  • A pair of side mounting brackets that attach to the chassis

  • A pair of front and rear mounting rails that attach to the rack posts

1

Documentation Roadmap

1

End User License Agreement

1
Note:
We no longer include the RJ-45 console cable with the DB-9 adapter as part of the device package. If the console cable and adapter are not included in your device package, or if you need a different type of adapter, you can order the following separately:
  • RJ-45 to DB-9 adapter (JNP-CBL-RJ45-DB9)
  • RJ-45 to USB-A adapter (JNP-CBL-RJ45-USBA)
  • RJ-45 to USB-C adapter (JNP-CBL-RJ45-USBC)

If you want to use RJ-45 to USB-A or RJ-45 to USB-C adapter you must have X64 (64-Bit) Virtual COM port (VCP) driver installed on your PC. See, https://ftdichip.com/drivers/vcp-drivers/ to download the driver.
Note:

You must provide the appropriate mounting screws for mounting the switch on a rack or a cabinet.

All the rack mount kits are separately orderable.

Table 2: Rack Mount Kits for QFX5120-32C, QFX5120-48T, QFX5120-48Y, QFX5120-48YM
Model Rack Mount Kit

QFX5120-32C

  • QFX5120-32C-RMK-E (shipped with the switch)

  • QFX512032C-RMK (separately orderable)

  • QFX5K-2PST-RMK (separately orderable)

QFX5120-48YM

  • JNP-4PST-RMK-1U-E (shipped with the switch)

  • EX-4PST-RMK (separately orderable)

QFX5120-48T

  • JNP-4PST-RMK-1U-E (shipped with the switch)

  • EX-4PST-RMK (seperately orderable)
QFX5120-48Y

  • JNP-4PST-RMK-1U-E (shipped with the switch)

  • EX-4PST-RMK (seperately orderable)

Update Base Installation Data

CAUTION:

Update the installation base data if any addition or change to the installation base occurs or if the installation base is moved. Juniper Networks is not responsible for not meeting the hardware replacement SLA for products that do not have accurate installation base data.

Update your installation base at https://supportportal.juniper.net/s/CreateCase .

Mount a QFX5120-32C Switch on a Four-Post Rack

Before mounting a QFX5120-32C switch:

Ensure that you have the following parts and tools available:

  • Number 2 Phillips (+) screwdriver—not provided

  • Eight sscrews to secure the mounting brackets to the rack—not provided

  • Electrostatic discharge (ESD) grounding strap—not provided

  • Front mounting brackets—2 (provided with the rack mount kit)

  • Side mounting rails—2 (provided with the rack mount kit)

  • Flat head M4X8 screws to attach the front mounting brackets and side mounting rails to the switch chassis—20 (provided with the rack mount kit)

  • Rear mounting (L-shaped) brackets—2 (provided with the rack mount kit)

  • Pan head M4X8 screws to attach the rear mounting brackets to the side mounting rails—2 (provided with the rack mount kit)

You can mount a QFX5120-32C switch on four posts of a 19-in. rack or in a cabinet that contains a four-post 19-in. rack by using a rack mount kit. (The remainder of this topic uses rack to mean rack or cabinet.)

Note:

One person must be available to lift the switch while another person secures the switch to the rack.
CAUTION:

If you are mounting multiple units on a rack, mount the heaviest unit at the bottom of the rack, and then mount the other units from the bottom of the rack to the top in decreasing order of the weight of the units.

To mount a QFX5120-32C switch:

  1. Place the switch on a flat, stable surface.
  2. Wrap and fasten one end of the ESD wrist strap around your bare wrist, and connect the other end of the strap to a site ESD point.
  3. Align the front mounting brackets along the side panel of the switch such that the front of the bracket is flush with the front panel of the switch chassis. Insert the flat head M4X8 screws for attaching the front mounting brackets into the aligned holes on the chassis and tighten the screws (see Figure 1).
    Figure 1: Attach the Front Mounting Brackets to a QFX5120-32C Switch Chassis Attach the Front Mounting Brackets to a QFX5120-32C Switch Chassis
  4. Align the side mounting rails along the side panel of the switch. Insert the flat head M4X8 screws for attaching the side mounting rails into the aligned holes on the chassis and tighten the screws (see Figure 2).
    Figure 2: Attach the Side Mounting Rails to a QFX5120-32C Switch Chassis Attach the Side Mounting Rails to a QFX5120-32C Switch Chassis
  5. Decide which end of the switch you want to place at the front of the rack. Position the switch so that the F2B labels on the fan modules are facing the cold aisle, or the B2F labels on the fan modules are facing the hot aisle.
  6. Have one person grasp both sides of the switch, lift the switch, and position it in the rack, aligning the holes of the mounting brackets with the threaded holes in the front post of the rack. Align the bottom hole in both the mounting brackets with a hole in each rack rail, making sure that the chassis is level.
  7. Have a second person secure the front of the switch to the rack by using the screws appropriate for your rack. Tighten the screws (see Figure 3).
    Figure 3: Secure the QFX5120-32C Switch to the Front Posts of a Rack Secure the QFX5120-32C Switch to the Front Posts of a Rack
  8. Slide the rear mounting (L-shaped) brackets on to the side mounting rails (see Figure 4).
  9. Ensure that the chassis is level. Align the holes of the rear mounting brackets with the threaded holes in the rear post of the rack. Align the bottom hole in both the mounting brackets with a hole in each rack rail. Align the bottom hole in both the rear mounting brackets with the bottom hole in the front mounting brackets.
  10. Secure the rear mounting brackets to the rear post of the rack by using screws appropriate for your rack (see Figure 4). Tighten the screws.
    Figure 4: Secure the QFX5120-32C Switch to the Rear Post of the Rack by Using the Rear Mounting Brackets Secure the QFX5120-32C Switch to the Rear Post of the Rack by Using the Rear Mounting Brackets
  11. Secure the rear mounting (L-shaped) brackets to the side mounting rails by using the pan head M4X8 screws provided (see Figure 4). Tighten the screws.
  12. Your switch is now installed on a four-post rack.

Mount a QFX5120-32C Switch on a Two-Post Rack

Before you mount a QFX5120-32C switch on a two-post rack:

Ensure that you have the following parts and tools available:

  • Number 2 Phillips (+) screwdriver—not provided

  • Eight screws to secure the mounting brackets to the rack—not provided

  • Electrostatic discharge (ESD) grounding strap—not provided

  • Two-post rack mounting bracket for mounting the switch on a two-post rack—2 (provided with the two-post rack mount kit)

  • Flat head 4x6-mm Phillips screws for attaching the two-post rack mounting brackets to the chassis—8 (provided with the two-post rack mount kit)

You can mount a QFX5120 switch on four posts of a four-post 19-in. rack or in a cabinet that contains a four-post 19-in. rack, flush with the front posts, by using a four-post rack mount kit. (The remainder of this topic uses rack to mean rack or cabinet.) You can mount QFX5120-48T, QFX5120-48Y, and QFX5120-48YM switches in a recessed position inside a four-post rack by using the recessed mounting brackets. You can also mount QFX5120-48YM switches on a two-post rack by using a separately orderable two-post rack mount kit.

Note:

One person must be available to lift the switch while another person secures the switch to the rack.
CAUTION:

If you are mounting multiple units on a rack, mount the heaviest unit at the bottom of the rack, and then mount the other units from the bottom of the rack to the top in decreasing order of the weight of the units.

To mount a QFX5120-32C switch on a two-post rack:

  1. Place the switch on a flat, stable surface.
  2. Wrap and fasten one end of the ESD wrist strap around your bare wrist, and connect the other end of the strap to a site ESD point.
  3. Align the two-post rack mounting bracket (provided with the two-post rack mount kit) along the side panel of the switch.
  4. Insert the flat head 4x6-mm Phillips screws for attaching the two-post rack mounting brackets (provided with the two-post rack mount kit) into the aligned holes on the chassis. Tighten the screws (see Figure 5) .
    Figure 5: Attach the Two-Post Mounting Brackets to a QFX5120-32C Switch Attach the Two-Post Mounting Brackets to a QFX5120-32C Switch
  5. Decide which end of the switch you want to place at the front of the rack. Position the switch so that the AIR IN labels on the fan modules are facing the cold aisle, or the AIR OUT labels on the fan modules are facing the hot aisle.
  6. Have one person grasp both sides of the switch, lift the switch, and position it in the rack, aligning the holes of the mounting brackets with the threaded holes in the posts of the rack. Align the bottom hole in both the mounting brackets with a hole in each rack rail, making sure that the chassis is level.
  7. Have a second person secure the switch to the rack by using the screws appropriate for your rack. Tighten the screws (see Figure 6).
    Figure 6: Secure the QFX5120-32C Switch to the Two-Post Rack Secure the QFX5120-32C Switch to the Two-Post Rack
  8. Your switch is now installed on a two-post rack (see Install the QFX5120-32C Switch to the Two-Post Rack.)
    Figure 7: Mount the QFX5120-32C Switch to the Two-Post Rack Mount the QFX5120-32C Switch to the Two-Post Rack

Mount a QFX5120-32C by Using the QFX5120-32C-RMK-E Rack Mount Kit

Use the information in this topic to install the QFX5120-32C by using the QFX5120-32C-RMK-E rack mount kit.

You can mount QFX5120-32 switches on a square hole or threaded hole four-post 19-in. racks using the tool less QFX5120-32C-RMK-E rack mount kit.

QFX5120-32C-RMK-E rack mount kit consists of the following parts:

  • A pair of side mounting brackets that attach to the chassis

  • A pair of front and rear mounting rails that attach to the rack posts

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

Before mounting a QFX5120-32C switch:

Mount a QFX5120-32C by Using the QFX5120-32C-RMK-E Rack Mount Kit on a Square Hole 4-Post Rack

Ensure that you have the following tools and parts available:

  • An ESD grounding strap—not provided.

  • QFX5120-32C-RMK-E Rack Mount Kit

To mount the device on a four-post rack:

  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, and connect the other end to a site ESD point.
  3. To attach the side mounting brackets to the chassis, align the keyholes on the mounting brackets over the shoulder screws on the chassis. Slide the mounting brackets toward the rear of the chassis.
    Figure 8: Attach the Side Mounting Brackets Attach the Side Mounting Brackets
  4. Assemble the mounting rails by sliding the rear floating rails into the front rails.
    Figure 9: Assemble the Mounting Rails Assemble the Mounting Rails
  5. Install the mounting rails on 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 distinct click sound when the latch locks into the corresponding rack holes.
      Figure 10: Install the Rear Mounting Rails Install the Rear Mounting 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 11: Install the Front Mounting Rails Install the Front Mounting Rails
    3. Visually ensure that the front and rear latches are locked into place on the mounting rails. The mounting rails should be securely installed on the rack.
  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.
    Figure 12: Slide the Device into the Rack Slide the Device into the Rack
  7. Tighten the two thumbscrews to secure the device.
    Figure 13: Tighten the Thumbscrews Tighten the Thumbscrews

Mount a QFX5120-32C by Using the QFX5120-32C-RMK-E Rack Mount Kit on a Threaded-Hole 4-Post Rack

Ensure that you have the following tools and parts available:

  • An ESD grounding strap—not provided.

  • QFX5120-32C-RMK-E Rack Mount Kit

To mount the device on a four-post rack with threaded holes:

  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, and connect the other end to a site ESD point.
  3. To attach the side mounting brackets to the chassis, align the keyholes on the mounting brackets over the shoulder screws on the chassis. Slide the mounting brackets toward the rear of the chassis.
    Figure 14: Attach the Side Mounting Brackets Attach the Side Mounting Brackets
  4. Assemble the mounting rails:
    1. Remove the guide blocks from the front mounting rails by loosening the screws and washers. Preserve the guide blocks, screws, and washers for later use.
      Figure 15: Remove the Guide Blocks from the Front Mounting Rail Remove the Guide Blocks from the Front Mounting Rail
    2. Remove the guide blocks from the rear mounting rail by loosening the screws and washers. Preserve the guide blocks, screws, and washers for later use.
      Figure 16: Remove the Guide Blocks from the Rear Mounting Rail Remove the Guide Blocks from the Rear Mounting Rail
    3. Slide the rear floating rails into the front rails.
      Figure 17: Assemble the Mounting Rails Assemble the Mounting Rails
  5. Install the mounting rails on the rack:
    1. Insert the guide pin of the rear mounting rails into 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 distinct click sound when the latch locks into place.
      Figure 18: Install the Rear Mounting Rails Install the Rear Mounting Rails
    2. Insert the guide pin of the front mounting rails into 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 place. Secure the front mounting rails to the front rack post by using screws (not provided) appropriate for your rack threaded size.
      Figure 19: Install and Secure the Front Mounting Rails Install and Secure the Front Mounting Rails
    3. Secure the rear mounting rails to the rear rack post by using screws (not provided) appropriate for your rack threaded size.
      Figure 20: Secure the Rear Mounting Rails Secure the Rear Mounting Rails
    4. Visually ensure that the front and rear latches are locked into place on the mounting rails. The mounting rails should be securely installed on the rack.
      Figure 21: Mounting Rails Installed and Secured Mounting Rails Installed and Secured
  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.
    Figure 22: Slide the Device into the Rack Slide the Device into the Rack
  7. Tighten the two thumbscrews to secure the device.
    Figure 23: Tighten the Thumbscrews Tighten the Thumbscrews

Mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM Switch in a Rack or Cabinet by Using the JNP-4PST-RMK-1U-E Rack Mount Kit

You can mount QFX5120-48T,QFX5120-48Y, or QFX5120-48YM 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.

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 24.
      Figure 24: Assemble the Mounting Rails Assemble the Mounting Rails
    2. Mounting rails assembled. See Figure 25.
      Figure 25: 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 26.
      Figure 26: 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 27.
      Figure 27: Install the Front Mounting Rails Install the Front Mounting Rails
    3. Push the lock latch to the locked position. See Figure 28.
      Figure 28: 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 29.
      Figure 29: 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 30). Tighten the screws.
      Figure 30: 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 31.
    Figure 31: Slide the Device into the Rack Slide the Device into the Rack
  7. Tighten the two thumbscrews to secure the device. See Figure 32.
    Figure 32: 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 33.
      Figure 33: 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 34
      Figure 34: 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 35.
      Figure 35: Slide Rear Floating Rail into Front Mounting Rail Slide Rear Floating Rail into Front Mounting Rail
    4. Mounting rails assembled. See Figure 36.
      Figure 36: 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 37.
      Figure 37: 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 38.
      Figure 38: 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 39.
      Figure 39: 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 40.
      Figure 40: 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 41). Tighten the screws.
      Figure 41: 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 42.
    Figure 42: Slide the Device into the Rack Slide the Device into the Rack
  7. Tighten the two thumbscrews to secure the device. See Figure 43.
    Figure 43: Tighten Thumb Screws Tighten Thumb Screws

Mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM Switch Flush with the Front Posts of a Rack or Cabinet by Using the EX-4PST-RMK Rack Mount Kit

Note:

The protective earthing terminal on QFX5120-48T, QFX5120-48Y, and QFX5120-48YM switches mounted flush with the front posts of a rack is accessible through the slot on the left rear bracket only if the distance between the front posts and the rear posts is 23 in. (58.5 cm) through 30.25 in. (76.8 cm).

Before you mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM switch:

Ensure that you have the following parts and tools available:

  • Number 2 Phillips (+) screwdriver—not provided

  • Eight screws to secure the mounting brackets to the rack—not provided

  • Electrostatic discharge (ESD) grounding strap—not provided

  • Front mounting bracket assembly for mounting the switch flush with the front posts of a rack—2 (provided with the four-post rack mount kit)

    (The front mounting bracket assembly is made up of a side rail to which an L-shaped bracket is attached.)

  • Flat head 4x6-mm Phillips screws for attaching the front mounting brackets to the chassis—12 (provided with the four-post rack mount kit)

  • Rear mounting brackets—2 (provided with the four-post rack mount kit)

You can mount a QFX5120 switch on four posts of a four-post 19-in. rack or in a cabinet that contains a four-post 19-in. rack, flush with the front posts, by using a four-post rack mount kit. (The remainder of this topic uses rack to mean rack or cabinet.) You can mount QFX5120-48T, QFX5120-48Y, and QFX5120-48YM switches in a recessed position inside a four-post rack by using the recessed mounting brackets. You can also mount QFX5120-48YM switches on a two-post rack by using a separately orderable two-post rack mount kit.

This topic describes the procedure to mount QFX5120-48T, QFX5120-48Y, and QFX5120-48YM switches flush with the front posts of a four-post rack. If you want to mount the switch in a recessed position from the front posts of a four-post rack, see Mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM Switch in a Recessed Position from the Front Posts of a Rack or Cabinet. If you want to mount a QFX5120-48YM switch on a two-post rack, see Mount a QFX5120-48YM Switch on a Two-Post Rack.

Note:

One person must be available to lift the switch while another person secures the switch to the rack.

CAUTION:

If you are mounting multiple units on a rack, mount the heaviest unit at the bottom of the rack, and then mount the other units from the bottom of the rack to the top in decreasing order of the weight of the units.

To mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM switch flush with the front posts of a four-post rack:

  1. Place the switch on a flat, stable surface.
  2. Wrap and fasten one end of the ESD wrist strap around your bare wrist, and connect the other end of the strap to a site ESD point.
  3. Align the front mounting bracket assembly (provided with the four-post rack mount kit) along the side panel of the switch such that the front of the bracket is flush with the front panel of the switch chassis.
  4. Insert the flat head 4x6-mm Phillips screws for attaching the front mounting brackets (provided with the four-post rack mount kit) into the aligned holes on the chassis (see Figure 44, Figure 45, and Figure 46). Tighten the screws.
    Figure 44: Attach the Flush Mounting Brackets to a QFX5120-48T Switch ChassisAttach the Flush Mounting Brackets to a QFX5120-48T Switch Chassis
    Figure 45: Attach the Flush Mounting Brackets to a QFX5120-48Y Switch ChassisAttach the Flush Mounting Brackets to a QFX5120-48Y Switch Chassis
    Figure 46: Attach the Flush Mounting Brackets to a QFX5120-48YM Switch ChassisAttach the Flush Mounting Brackets to a QFX5120-48YM Switch Chassis
  5. Decide which end of the switch you want to place at the front of the rack. Position the switch so that the AIR IN labels on the fan modules are facing the cold aisle, or the AIR OUT labels on the fan modules are facing the hot aisle.
  6. Have one person grasp both sides of the switch, lift the switch, and position it in the rack, aligning the holes of the mounting brackets with the threaded holes in the front post of the rack. Align the bottom hole in both the mounting brackets with a hole in each rack rail, making sure that the chassis is level.
  7. Have a second person secure the front of the switch to the rack by using the screws appropriate for your rack. Tighten the screws (see Figure 47, Figure 48, and Figure 49).
    Figure 47: Secure the QFX5120-48T Switch to the Front Posts of a RackSecure the QFX5120-48T Switch to the Front Posts of a Rack
    Figure 48: Secure the QFX5120-48Y Switch to the Front Posts of a RackSecure the QFX5120-48Y Switch to the Front Posts of a Rack
    Figure 49: Secure the QFX5120-48YM Switch to the Front Posts of a RackSecure the QFX5120-48YM Switch to the Front Posts of a Rack
  8. Slide the rear mounting bracket blades into the side rails of the front mounting brackets attached to the switch chassis (see Figure 50, Figure 51, and Figure 52).
  9. Ensure that the chassis is level. Align the holes of the rear mounting brackets with the threaded holes in the rear post of the rack. Align the bottom hole in both the mounting brackets with a hole in each rack rail. Align the bottom hole in both the rear mounting brackets with the bottom hole in the front mounting brackets.
  10. Secure the rear mounting brackets to the rear post of the rack by using screws appropriate for your rack (see Figure 50, Figure 51, and Figure 52).
    Figure 50: Secure the QFX5120-48T Switch to the Rear Post of the Rack by Using the Rear Mounting BracketsSecure the QFX5120-48T Switch to the Rear Post of the Rack by Using the Rear Mounting Brackets
    Figure 51: Secure the QFX5120-48Y Switch to the Rear Post of the Rack by Using the Rear Mounting BracketsSecure the QFX5120-48Y Switch to the Rear Post of the Rack by Using the Rear Mounting Brackets
    Figure 52: Secure the QFX5120-48YM Switch to the Rear Post of the Rack by Using the Rear Mounting BracketsSecure the QFX5120-48YM Switch to the Rear Post of the Rack by Using the Rear Mounting Brackets

    Your switch is now installed on a four-post rack.

Mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM Switch in a Recessed Position from the Front Posts of a Rack or Cabinet by Using the EX-4PST-RMK Rack Mount Kit

Note:

The protective earthing terminal on QFX5120-48T, QFX5120-48Y, and QFX5120-48YM switches mounted in a recessed position from the front posts of a rack is accessible through the slot on the left rear bracket only if the distance between the front posts and the rear posts is 25 in. (63.5 cm) through 32.25 in. (81.9 cm).

Before you mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM switch:

Ensure that you have the following parts and tools available:

  • Number 2 Phillips (+) screwdriver—not provided

  • Eight screws to secure the mounting brackets to the rack—not provided

  • Electrostatic discharge (ESD) grounding strap—not provided

  • Front mounting bracket assembly for mounting the switch flush with the front posts of a rack—2 (provided with the four-post rack mount kit)

    (The front mounting bracket assembly is made up of a side rail to which an L-shaped bracket is attached.)

  • Flat head 4x6-mm Phillips screws for attaching the front mounting brackets to the chassis—12 (provided with the four-post rack mount kit)

  • Rear mounting brackets—2 (provided with the four-post rack mount kit)

  • Recessed mounting brackets for mounting the switch in a recessed position from the front posts of a rack—2 (provided with the four-post rack mount kit)

  • Flat head 4-40 Phillips screws for attaching the recessed mounting brackets to the side rails—6 (provided with the four-post rack mount kit)

You can mount a QFX5120 switch on four posts of a four-post 19-in. rack or in a cabinet that contains a four-post 19-in. rack, flush with the front posts, by using a four-post rack mount kit. (The remainder of this topic uses rack to mean rack or cabinet.) You can mount QFX5120-48T, QFX5120-48Y, and QFX5120-48YM switches in a recessed position inside a four-post rack by using the recessed mounting brackets. You can also mount QFX5120-48YM switches on a two-post rack by using a separately orderable two-post rack mount kit.

This topic describes the procedure to mount QFX5120-48T, QFX5120-48Y, and QFX5120-48YM switches in a recessed position from the front posts of a four-post rack. If you want to mount the switch flush with the front posts of a four-post rack, see Mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM Switch Flush with the Front Posts of a Rack or Cabinet. If you want to mount a QFX5120-48YM switch on a two-post rack, see Mount a QFX5120-48YM Switch on a Two-Post Rack.

Note:

One person must be available to lift the switch while another person secures the switch to the rack.

CAUTION:

If you are mounting multiple units on a rack, mount the heaviest unit at the bottom of the rack, and then mount the other units from the bottom of the rack to the top in decreasing order of the weight of the units.

To mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM switch in a recessed position from the front posts of a four-post rack:

  1. Place the switch on a flat, stable surface.
  2. Wrap and fasten one end of the ESD wrist strap around your bare wrist, and connect the other end of the strap to a site ESD point.
  3. Unscrew and detach the L-shaped bracket from the side rail in the front mounting bracket assembly provided with the four-post rack mount kit (see Figure 53).
    Figure 53: Unscrew and Detach the L-Shaped Bracket from the Side RailUnscrew and Detach the L-Shaped Bracket from the Side Rail
      1
    —

    Side rail

      2
    —

    L-shaped bracket

  4. Attach the recessed mounting brackets provided with the four-post rack mount kit to the side rails by using the flat head 4-40 Phillips screws provided with the four-post rack mount kit (see Figure 54).
    Figure 54: Attach the Recessed Mounting Bracket to the Side RailAttach the Recessed Mounting Bracket to the Side Rail
      1
    —

    Side rail

      2
    —

    Recessed mounting bracket

  5. Align the recessed mounting bracket assembly along the side panel of the switch.
  6. Insert the flat head 4x6-mm Phillips screws for attaching the recess mounting bracket assembly (provided with the four-post rack mount kit) into the aligned holes on the chassis (see Figure 55, Figure 56, and Figure 57). Tighten the screws.
    Figure 55: Attach the Recessed Mounting Bracket Assembly to the QFX5120-48T Switch ChassisAttach the Recessed Mounting Bracket Assembly to the QFX5120-48T Switch Chassis
    Figure 56: Attach the Recessed Mounting Bracket Assembly to the QFX5120-48Y Switch ChassisAttach the Recessed Mounting Bracket Assembly to the QFX5120-48Y Switch Chassis
    Figure 57: Attach the Recessed Mounting Bracket Assembly to the QFX5120-48YM Switch ChassisAttach the Recessed Mounting Bracket Assembly to the QFX5120-48YM Switch Chassis
  7. Decide which end of the switch you want to place at the front of the rack. Position the switch so that the AIR IN labels on the fan modules are facing the cold aisle, or the AIR OUT labels on the fan modules are facing the hot aisle.
  8. Have one person grasp both sides of the switch, lift the switch, and position it in the rack, aligning the holes of the mounting brackets with the threaded holes in the front post of the rack. Align the bottom hole in both the mounting brackets with a hole in each rack rail, making sure that the chassis is level.
  9. Have a second person secure the front of the switch to the rack by using the screws appropriate for your rack. Tighten the screws (see Figure 58, Figure 59, and Figure 60).
    Figure 58: Secure the QFX5120-48T Switch to the Front Posts of a RackSecure the QFX5120-48T Switch to the Front Posts of a Rack
    Figure 59: Secure the QFX5120-48Y Switch to the Front Posts of a RackSecure the QFX5120-48Y Switch to the Front Posts of a Rack
    Figure 60: Secure the QFX5120-48YM Switch to the Front Posts of a RackSecure the QFX5120-48YM Switch to the Front Posts of a Rack
  10. Slide the rear mounting bracket blades into the side rails of the recess mounting bracket assembly attached to the switch chassis (see Figure 61, Figure 62, and Figure 63).
  11. Ensure that the chassis is level. Align the holes of the rear mounting brackets with the threaded holes in the rear post of the rack. Align the bottom hole in both the mounting brackets with a hole in each rack rail. Align the bottom hole in both the rear mounting brackets with the bottom hole in the front mounting brackets.
  12. Secure the rear mounting brackets to the rear post of the rack by using screws appropriate for your rack (see Figure 61, Figure 62, and Figure 63).
    Figure 61: Secure the QFX5120-48T Switch to the Rear Post of the Rack by Using the Rear Mounting BracketsSecure the QFX5120-48T Switch to the Rear Post of the Rack by Using the Rear Mounting Brackets
    Figure 62: Secure the QFX5120-48Y Switch to the Rear Post of the Rack by Using the Rear Mounting BracketsSecure the QFX5120-48Y Switch to the Rear Post of the Rack by Using the Rear Mounting Brackets
    Figure 63: Secure the QFX5120-48YM Switch to the Rear Post of the Rack by Using the Rear Mounting BracketsSecure the QFX5120-48YM Switch to the Rear Post of the Rack by Using the Rear Mounting Brackets

    Your switch is now installed on a four-post rack.

Mount a QFX5120-48Y Switch on a Two-Post Rack

Before you mount a QFX5120-48Y switch on a two-post rack:

Ensure that you have the following parts and tools available:

  • Number 2 Phillips (+) screwdriver—not provided

  • Eight screws to secure the mounting brackets to the rack—not provided

  • Electrostatic discharge (ESD) grounding strap—not provided

  • Two-post rack mounting bracket for mounting the switch on a two-post rack—2 (provided with the two-post rack mount kit)

  • Flat head 4x6-mm Phillips screws for attaching the two-post rack mounting brackets to the chassis—8 (provided with the two-post rack mount kit)

You can mount a QFX5120 switch on four posts of a four-post 19-in. rack or in a cabinet that contains a four-post 19-in. rack, flush with the front posts, by using a four-post rack mount kit. (The remainder of this topic uses rack to mean rack or cabinet.) You can mount QFX5120-48Y switches in a recessed position inside a four-post rack by using the recessed mounting brackets. You can also mount QFX5120-48Y switches on a two-post rack by using a separately orderable two-post rack mount kit.

This topic describes the procedure to mount a QFX5120-48Y switch on a two-post rack. If you want to mount the switch flush with the front posts of a four-post rack, see Mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM Switch Flush with the Front Posts of a Rack or Cabinet. If you want to mount the switch in a recessed position from the front posts of a four-post rack, see Mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM Switch in a Recessed Position from the Front Posts of a Rack or Cabinet.

Note:

One person must be available to lift the switch while another person secures the switch to the rack.
CAUTION:

If you are mounting multiple units on a rack, mount the heaviest unit at the bottom of the rack, and then mount the other units from the bottom of the rack to the top in decreasing order of the weight of the units.

To mount a QFX5120-48Y switch on a two-post rack:

  1. Place the switch on a flat, stable surface.
  2. Wrap and fasten one end of the ESD wrist strap around your bare wrist, and connect the other end of the strap to a site ESD point.
  3. Align the two-post rack mounting bracket (provided with the two-post rack mount kit) along the side panel of the switch.
  4. Insert the flat head 4x6-mm Phillips screws for attaching the two-post rack mounting brackets (provided with the two-post rack mount kit) into the aligned holes on the chassis. Tighten the screws.
    Figure 64: Attach the Two-Post Rack Mounting Brackets to a QFX5120-48Y Switch Chassis Attach the Two-Post Rack Mounting Brackets to a QFX5120-48Y Switch Chassis
  5. Decide which end of the switch you want to place at the front of the rack. Position the switch so that the AIR IN labels on the fan modules are facing the cold aisle, or the AIR OUT labels on the fan modules are facing the hot aisle.
  6. Have one person grasp both sides of the switch, lift the switch, and position it in the rack, aligning the holes of the mounting brackets with the threaded holes in the posts of the rack. Align the bottom hole in both the mounting brackets with a hole in each rack rail, making sure that the chassis is level.
  7. Have a second person secure the switch to the rack by using the screws appropriate for your rack. Tighten the screws.
    Figure 65: Secure the QFX5120-48Y Switch to the Two-Post Rack Secure the QFX5120-48Y Switch to the Two-Post Rack

    Your switch is now installed on a two-post rack.

Mount a QFX5120-48T Switch on a Two-Post Rack

Before you mount a QFX5120-48T switch on a two-post rack:

Ensure that you have the following parts and tools available:

  • Number 2 Phillips (+) screwdriver—not provided

  • Eight screws to secure the mounting brackets to the rack—not provided

  • Electrostatic discharge (ESD) grounding strap—not provided

  • Two-post rack mounting bracket for mounting the switch on a two-post rack—2 (provided with the two-post rack mount kit)

  • Flat head 4x6-mm Phillips screws for attaching the two-post rack mounting brackets to the chassis—8 (provided with the two-post rack mount kit)

You can mount a QFX5120 switch on four posts of a four-post 19-in. rack or in a cabinet that contains a four-post 19-in. rack, flush with the front posts, by using a four-post rack mount kit. (The remainder of this topic uses rack to mean rack or cabinet.) You can mount QFX5120-48T switches in a recessed position inside a four-post rack by using the recessed mounting brackets. You can also mount QFX5120-48T switches on a two-post rack by using a separately orderable two-post rack mount kit.

This topic describes the procedure to mount a QFX5120-48T switch on a two-post rack. If you want to mount the switch flush with the front posts of a four-post rack, see Mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM Switch Flush with the Front Posts of a Rack or Cabinet. If you want to mount the switch in a recessed position from the front posts of a four-post rack, see Mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM Switch in a Recessed Position from the Front Posts of a Rack or Cabinet.

Note:

One person must be available to lift the switch while another person secures the switch to the rack.
CAUTION:

If you are mounting multiple units on a rack, mount the heaviest unit at the bottom of the rack, and then mount the other units from the bottom of the rack to the top in decreasing order of the weight of the units.

To mount a QFX5120-48T switch on a two-post rack:

  1. Place the switch on a flat, stable surface.
  2. Wrap and fasten one end of the ESD wrist strap around your bare wrist, and connect the other end of the strap to a site ESD point.
  3. Align the two-post rack mounting bracket (provided with the two-post rack mount kit) along the side panel of the switch).
  4. Insert the flat head 4x6-mm Phillips screws for attaching the two-post rack mounting brackets (provided with the two-post rack mount kit) into the aligned holes on the chassis. Tighten the screws.
    Figure 66: Attach the Two-Post Rack Mounting Brackets to a QFX5120-48T Switch Chassis
  5. Decide which end of the switch you want to place at the front of the rack. Position the switch so that the AIR IN labels on the fan modules are facing the cold aisle, or the AIR OUT labels on the fan modules are facing the hot aisle.
  6. Have one person grasp both sides of the switch, lift the switch, and position it in the rack, aligning the holes of the mounting brackets with the threaded holes in the posts of the rack. Align the bottom hole in both the mounting brackets with a hole in each rack rail, making sure that the chassis is level.
  7. Have a second person secure the switch to the rack by using the screws appropriate for your rack. Tighten the screws).
    Figure 67: Secure the QFX5120-48T Switch to the Two-Post Rack Secure the QFX5120-48T Switch to the Two-Post Rack

    Your switch is now installed on a two-post rack.

Mount a QFX5120-48YM Switch on a Two-Post Rack

Before you mount a QFX5120-48YM switch on a two-post rack:

Ensure that you have the following parts and tools available:

  • Number 2 Phillips (+) screwdriver—not provided

  • Eight screws to secure the mounting brackets to the rack—not provided

  • Electrostatic discharge (ESD) grounding strap—not provided

  • Two-post rack mounting bracket for mounting the switch on a two-post rack—2 (provided with the two-post rack mount kit)

  • Flat head 4x6-mm Phillips screws for attaching the two-post rack mounting brackets to the chassis—8 (provided with the two-post rack mount kit)

You can mount a QFX5120 switch on four posts of a four-post 19-in. rack or in a cabinet that contains a four-post 19-in. rack, flush with the front posts, by using a four-post rack mount kit. (The remainder of this topic uses rack to mean rack or cabinet.) You can mount QFX5120-48YM switches in a recessed position inside a four-post rack by using the recessed mounting brackets. You can also mount QFX5120-48YM switches on a two-post rack by using a separately orderable two-post rack mount kit.

This topic describes the procedure to mount a QFX5120-48YM switch on a two-post rack. If you want to mount the switch flush with the front posts of a four-post rack, see Mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM Switch Flush with the Front Posts of a Rack or Cabinet. If you want to mount the switch in a recessed position from the front posts of a four-post rack, see Mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM Switch in a Recessed Position from the Front Posts of a Rack or Cabinet.

Note:

One person must be available to lift the switch while another person secures the switch to the rack.

CAUTION:

If you are mounting multiple units on a rack, mount the heaviest unit at the bottom of the rack, and then mount the other units from the bottom of the rack to the top in decreasing order of the weight of the units.

To mount a QFX5120-48YM switch on a two-post rack:

  1. Place the switch on a flat, stable surface.
  2. Wrap and fasten one end of the ESD wrist strap around your bare wrist, and connect the other end of the strap to a site ESD point.
  3. Align the two-post rack mounting bracket (provided with the two-post rack mount kit) along the side panel of the switch.
  4. Insert the flat head 4x6-mm Phillips screws for attaching the two-post rack mounting brackets (provided with the two-post rack mount kit) into the aligned holes on the chassis). Tighten the screws.
    Figure 68: Attach the Two-Post Rack Mounting Brackets to a QFX5120-48YM Switch Chassis Attach the Two-Post Rack Mounting Brackets to a QFX5120-48YM Switch Chassis
  5. Decide which end of the switch you want to place at the front of the rack. Position the switch so that the AIR IN labels on the fan modules are facing the cold aisle, or the AIR OUT labels on the fan modules are facing the hot aisle.
  6. Have one person grasp both sides of the switch, lift the switch, and position it in the rack, aligning the holes of the mounting brackets with the threaded holes in the posts of the rack. Align the bottom hole in both the mounting brackets with a hole in each rack rail, making sure that the chassis is level.
  7. Have a second person secure the switch to the rack by using the screws appropriate for your rack. Tighten the screws.
    Figure 69: Secure the QFX5120-48YM Switch to the Two-Post Rack Secure the QFX5120-48YM Switch to the Two-Post Rack

    Your switch is now installed on a two-post rack.