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play_arrow Fast Track: Initial Installation
- Fast Track to Rack Installation and Power
- Onboard, Configure, and Monitor QFX5210
play_arrow Overview
play_arrow Site Planning, Preparation, and Specifications
play_arrow Initial Installation and Configuration
play_arrow Maintaining Components
play_arrow Troubleshooting the QFX5210
- Troubleshooting QFX5210 Components
play_arrow Contacting Customer Support and Returning the Chassis or Components
- Contact Customer Support
- Returning the Chassis or Component
play_arrow Safety and Compliance Information

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Fast Track to Rack Installation and Power

date_range 18-Jul-24

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This procedure walks you through the most basic steps for installing your QFX5210 switch in a rack and connecting it to power.

You can install the QFX5210-64C switch in a four-post rack or cabinet using the mounting kit provided with the switch. We’ll walk you through the steps to install the QFX5210-64C switch on a four post 19-in. rack or cabinet.

Before you install the switch, review:

Mounting a QFX5210 in a Rack or Cabinet

You can mount all QFX5210 switches on a four post 19-in. rack or cabinet using the mounting kit provided with the switch.

For four post rack or cabinet installations, the mounting kit contains two front mounting rails with two matching rear mounting blades. This configuration allows either end of the switch to be mounted flush with the rack and still be adjustable for racks with different depths.

The mounting kit for the QFX5210-64C has mounting rails, blades, and brackets for the four-post configuration.

(The remainder of this topic uses “rack” to mean “rack or cabinet.”) The front and rear rack rails must be spaced between 28 in. (71.1 cm) and 36 in. (91.4 cm) front to back.

This topic describes:

Before You Begin Rack Installation
Four Post Procedure

Before You Begin Rack Installation

Before you begin mounting a QFX5210 switch in the rack or cabinet:

Ensure that you understand how to prevent electrostatic discharge (ESD) damage. See Prevention of Electrostatic Discharge Damage.
Verify that the site meets the requirements described in QFX5210 Site Guidelines and Requirements.
Place the rack in its permanent location, allowing adequate clearance for airflow and maintenance, and secure it to the building structure.
Read General Site Guidelines, and QFX5210 Installation Overview..
Remove the switch from the shipping carton (see Unpacking and Mounting the QFX5210).
Ensure that you have the following parts and tools available to mount the switch in a rack:
- ESD grounding strap (not provided).
- Blades, rails, or brackets (provided).
  
  Warning:
  Only use Juniper-provided rack mounting kits to ensure proper ventilation and cooling to the chassis.
  - For four-post installations:
    - One pair of rear mounting blades. These mounting blades support the rear of the chassis and must be installed (provided).
    - One pair of front mounting rails. The mounting blades slide into the mounting rails to support the switch (provided).
    - Screws to secure the mounting rails to the chassis (provided).
      
      Twelve M4 flat-head screws for attaching the mounting bracket to the chassis.
    - Eight screws to secure the chassis and rear installation blades to the rack (not 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).
Register the QFX5210. SeeUpdate Base Installation Data

Optional equipment: Grounding cable kit with bracket, lug, and three nuts with integrated washers.

Warning:

A QFX5210 must be supported at all four corners. Mounting the chassis using only the front brackets will damage the chassis and can result in serious bodily injury.

CAUTION:

All QFX5210 require two people for installation, one person to lift the device into place and another person to attach it to the rack. If you are installing the QFX5210 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 device.

CAUTION:

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

Four Post Procedure

To mount the switch on four posts in a rack using the provided mounting kit:

Attach the ESD grounding strap to your bare wrist and to a site ESD point.
Decide whether the Field Replaceable Unit (FRU) end of the switch or the port end is to be placed at the front of the rack. Position the switch in such a manner that the AIR IN labels on components are next to the cold aisle and AIR OUT labels on components are next to the hot aisle.
Align the holes in the mounting rail with the holes on the side of the chassis. SeeFigure 1 to see the proper alignment for the QFX5210.
Figure 1: Attaching Mounting Rails to the QFX5210
Attach the mounting rail to the switch using the mounting screws. Tighten the screws.
Repeats steps 3 and 4 on the opposite side of the switch.
Have one person grasp both sides of the switch, lift it, and position it in the rack so that the front bracket is aligned with the rack holes.
Have a second person secure the front of the switch to the rack using four mounting screws (and cage nuts and washers if your rack requires them.) Tighten the screws. See Figure 2 for an example of attaching the chassis with mounting rail to the mounting rack.
Figure 2: Attach Chassis to the Mounting Rack
Continue to support the switch while sliding the rear mounting-blades into the channel of the side mounting-rails and securing the blades to the rack. Use the four mounting screws (and cage nuts and washers if your rack requires them) to attach each blade to the rack. (Use eight front-mounting screws for the QFX5210.)Tighten the screws. See Figure 3.
Figure 3: Slide Mounting Blade into Mounting Rail
Ensure that the switch chassis is level by verifying that all the screws on the front of the rack are aligned with the screws at the back of the rack.

Connect to Power

To connect the QFX5210 switch to AC power, you must perform the following tasks:

Connecting the QFX5210 to Ground
Connecting AC Power to a QFX5210

Connecting the QFX5210 to Ground

You must install the QFX5210 in a restricted-access location and ensure that the chassis is always properly grounded. The QFX5210 has a two-hole protective grounding terminal provided on the chassis. See Figure 4. Under all circumstances, use this grounding connection to ground the chassis. For AC-powered systems, you must also use the grounding wire in the AC power cord along with the two-hole grounding lug connection. This tested system meets or exceeds all applicable EMC regulatory requirements with the two-hole protective grounding terminal.

CAUTION:

If an external ground connection is required, ensure that a licensed electrician has attached an appropriate grounding lug to the grounding cable that you supply. Using a grounding cable with an incorrectly attached lug can damage the switch (for example, by causing a short circuit).

Note:

Mount your switch in the rack or cabinet before attaching the grounding lug to the switch. See Unpacking and Mounting the QFX5210.

Ensure that you have the following parts and tools available:

Grounding cable for your QFX5210—The grounding cable must be 10 AWG (5 mm²), minimum 90° C wire, or as permitted by the local code.
Grounding lug for your grounding cable—The grounding lug required is a Panduit LCD10-10A-L or equivalent (not provided).
Two #10-32 UNF screws and washers (not provided).
Screwdriver appropriate for the #10-32 UNF screws (not provided).

An AC-powered QFX5210 switch chassis gains additional grounding when you plug the power supply in the switch into a grounded AC power outlet by using an AC power cord appropriate for your geographical location. See AC Power Cord with Type C15 Coupler Specifications.

To connect earth ground to a QFX5210:

Secure the protective earthing terminal bracket to the FRU panel of the QFX5210 chassis with two #10-32 UNF screws. The posts on the protective earthing terminal bracket should point to the left. See Figure 4 .
Figure 4: Connecting a Grounding Cable to a QFX5210-64C
Connect one end of the grounding cable to a proper earth ground, such as the rack in which the switch is mounted.
Place the grounding lug attached to the grounding cable over the protective earthing terminal on the protective earthing terminal bracket.
Secure the grounding lug to the protective earthing terminal with the two washers and screws.
Dress the grounding cable and ensure that it does not touch or block access to other device components and that it does not drape where people could trip over it.

Connecting AC Power to a QFX5210

Ensure that you have a power cord appropriate for your geographical location available to connect AC power to the switch.

Before you begin connecting AC power to the switch:

Ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention of Electrostatic Discharge Damage).
Ensure that you have connected the switch chassis to earth ground.

CAUTION:
Before you connect power to the switch, a licensed electrician must attach a cable lug to the grounding and power cables that you supply. A cable with an incorrectly attached lug can damage the switch (for example, by causing a short circuit).

To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, you must connect the chassis to earth ground before you connect it to power. For installations that require a separate grounding conductor to the chassis, use the protective earthing terminal on the switch chassis to connect to the earth ground. For instructions on connecting earth ground, see Connecting the QFX5210. The switch gains additional grounding when you plug the power supply in the switch into a grounded AC power outlet by using the AC power cord appropriate for your geographical location (see QFX5210 Power System).
Install the power supply in the chassis. For instructions on installing a power supply in a QFX5210, see Maintaining QFX5210 Power Supplies.

The QFX5210 is shipped from the factory with two power supplies. Each power supply is a hot-removable and hot-insertable field-replaceable unit (FRU) when the second power supply is installed and running. You can install replacement power supplies in the two slots next to the fan modules without powering off the switch or disrupting the switching function.

Note:

Each power supply must be connected to a dedicated power source outlet.

To connect AC power to a QFX5210:

Attach the grounding strap to your bare wrist and to a site ESD point.
Ensure that the power supplies are fully inserted in the chassis and the latches are secure. If only one power supply is installed, ensure a that blank cover panel is installed over the second power supply slot.
Locate the power cord or cords shipped with the switch; the cords have plugs appropriate for your geographical location. See AC Power Cord with Type C15 Coupler Specifications.

Warning:
Ensure that the power cord does not block access to device components or drape where people can trip on it.
Attach a power cord retainer to each AC power supply. See Figure 5.
Figure 5: Attaching a Cord Retainer to the AC Power Supply
Thread the coupler end of the power cords through the opening of the cord retainer.
Connect each power supply to the power sources. Insert the coupler end of the power cord into the AC power cord inlet on the AC power supply faceplate.
Push down the power cord retainer to lock the retainer down over the power cord.
Figure 6: Connecting AC Power
If the AC power source outlet has a power switch, set it to the OFF (O) position.

Note:
The switch powers on as soon as power is provided to the power supply. There is no power switch on the device.
Insert the power cord plug into an AC power source outlet.
If the AC power source outlet has a power switch, set it to the ON (|) position.
Verify that the AC and DC LEDs on each power supply are lit green.
If the amber fault LED is lit, remove power from the power supply, and replace the power supply (see Removing a Power Supply from a QFX5210). Do not remove the power supply until you have a replacement power supply ready: the power supplies or a blank cover panel must be installed in the switch to ensure proper airflow.

CAUTION:
Replace a failed power supply with a blank panel or new power supply within 1 minute of removal to prevent chassis overheating.

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