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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

Four-post rack mount kit

QFX5120-32C

  • 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

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

  • Front mounting bracket assembly for mounting the switch flush with the front posts of a rack—2

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

  • Recessed mounting brackets for mounting the switch in a recessed position from the front posts of a rack—2

  • Flat head 4x6-mm Phillips screws for attaching the front mounting brackets to the chassis—12

  • Flat head 4-40 Phillips screws for attaching recessed mounting brackets to the side rails—6

  • Rear mounting brackets—2

RJ-45 cable and RJ-45 to DB-9 serial port adapter

1

Documentation Roadmap

1

End User License Agreement

1

Note:

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

Register Products—Mandatory to Validate SLAs

Register all new Juniper Networks hardware products and changes to an existing installed product using the Juniper Networks website to activate your hardware replacement service-level agreements (SLAs).

CAUTION:

Register product serial numbers on the Juniper Networks website and update the installation base data if there is any addition or change to the installation base or if the installation base is moved. Juniper Networks will not be held accountable for not meeting the hardware replacement service-level agreement for products that do not have registered serial numbers or accurate installation base data.

Register your product(s) at https://tools.juniper.net/svcreg/SRegSerialNum.jsp.

Update your installation base at https://www.juniper.net/customers/csc/management/updateinstallbase.jsp.

Mount a QFX5120-32C Switch on a Rack or Cabinet

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 ChassisAttach 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 ChassisAttach 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 RackSecure 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 BracketsSecure 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.

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

Mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM Switch Flush with the Front Posts of a Rack or Cabinet

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 5, Figure 6, and Figure 7). Tighten the screws.
    Figure 5: Attach the Flush Mounting Brackets to a QFX5120-48T Switch ChassisAttach the Flush Mounting Brackets to a QFX5120-48T Switch Chassis
    Figure 6: Attach the Flush Mounting Brackets to a QFX5120-48Y Switch ChassisAttach the Flush Mounting Brackets to a QFX5120-48Y Switch Chassis
    Figure 7: 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 8, Figure 9, and Figure 10).
    Figure 8: Secure the QFX5120-48T Switch to the Front Posts of a RackSecure the QFX5120-48T Switch to the Front Posts of a Rack
    Figure 9: Secure the QFX5120-48Y Switch to the Front Posts of a RackSecure the QFX5120-48Y Switch to the Front Posts of a Rack
    Figure 10: 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 11, Figure 12, and Figure 13).
  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 11, Figure 12, and Figure 13).
    Figure 11: 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 12: 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 13: 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

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 14).
    Figure 14: 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 15).
    Figure 15: 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 16, Figure 17, and Figure 18). Tighten the screws.
    Figure 16: Attach the Recessed Mounting Bracket Assembly to the QFX5120-48T Switch ChassisAttach the Recessed Mounting Bracket Assembly to the QFX5120-48T Switch Chassis
    Figure 17: Attach the Recessed Mounting Bracket Assembly to the QFX5120-48Y Switch ChassisAttach the Recessed Mounting Bracket Assembly to the QFX5120-48Y Switch Chassis
    Figure 18: 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 19, Figure 20, and Figure 21).
    Figure 19: Secure the QFX5120-48T Switch to the Front Posts of a RackSecure the QFX5120-48T Switch to the Front Posts of a Rack
    Figure 20: Secure the QFX5120-48Y Switch to the Front Posts of a RackSecure the QFX5120-48Y Switch to the Front Posts of a Rack
    Figure 21: 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 22, Figure 23, and Figure 24).
  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 22, Figure 23, and Figure 24).
    Figure 22: 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 23: 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 24: 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 QFX5120-48YM 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 QFX5120-48T, 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 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 (see Figure 25).
  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 (see Figure 25). Tighten the screws.
    Figure 25: Attach the Two-Post Rack Mounting Brackets to a QFX5120-48YM Switch ChassisAttach 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 (see Figure 26).
    Figure 26: Secure the QFX5120-48YM Switch to the Two-Post RackSecure the QFX5120-48YM Switch to the Two-Post Rack

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