Cisco 5520 Manuale utente

Installing the Cisco 5520 Wireless Controller

This chapter describes how to install the Cisco 5520 Wireless Controller.

IMPORTANT SAFETY INSTRUCTIONS

This warning symbol means danger. You are in a situation that could cause bodily injury. Before you

work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with

standard practices for preventing accidents. Use the statement number provided at the end of each warning

to locate its translation in the translated safety warnings that accompanied this device. Statement 1071

Warning

SAVE THESE INSTRUCTIONS

•Unpacking and Inspecting the Controller, page 1

•Preparing for Controller Installation, page 2

•Installing the Controller in a Rack, page 3

•Initial Controller Setup , page 8

•System BIOS and Cisco Integrated Management Controller Firmware, page 9

Unpacking and Inspecting the Controller

When handling internal controller components, wear an ESD strap and handle modules by the carrier

edges only.

Caution

Retain the shipping container in case the controller requires shipping in the future.Tip

Cisco 5520 Wireless Controller Installation Guide

The chassis is thoroughly inspected before shipment. If any damage occurred during transportation or any

items are missing, contact your customer service representative immediately.

Note

Step 1 Remove the controller from its container and save all the packaging material.

Step 2 Compare the shipment to the equipment list provided by your Cisco customer service representative. Verify that you

have all the items.

Step 3 Check for damage and report discrepancies or damage, if any, to your Cisco customer service representative. Before

speaking to the representative, have the following information ready:

•Invoice number of shipper (see the packing slip)

•Model and serial number of the damaged unit

•Description of damage

•Effect of damage on the installation

Preparing for Controller Installation

Installation Guidelines

To prevent the system from overheating, do not operate it in an area that exceeds the maximum

recommended ambient temperature of: 40° C (104° F). Statement 1047

Warning

The plug-socket combination must be accessible at all times, because it serves as the main disconnecting

device. Statement 1019

Warning

This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that the

protective device is rated not greater than: 250 V, 15 A. Statement 1005

Warning

Installation of the equipment must comply with local and national electrical codes. Statement 1074Warning

Cisco 5520 Wireless Controller Installation Guide

Installing the Cisco 5520 Wireless Controller

Preparing for Controller Installation

To ensure proper airflow it is necessary to rack the controllers using rail kits. Physically placing the units

on top of one another or “stacking”without the use of the rail kits blocks the air vents on top of the

controllers, which could result in overheating, higher fan speeds, and higher power consumption. We

recommend that you mount your controllers on rail kits when you are installing them into the rack because

these rails provide the minimal spacing required between the controllers. No additional spacing between

the controllers is required when you mount the units using rail kits.

The rail mounting kit (Part Number: UCSC-RAILB-M4=) is provided along with the Cisco 5520 WLC

and you do not have to order it separately.

Caution

Avoid UPS models that use ferroresonant technology. These UPS models can become unstable with

systems such as the Cisco UCS, which can have substantial current draw fluctuations from fluctuating

data traffic patterns.

Caution

Rack Requirements

This section provides the requirements for the standard open racks.

The rack must be of the following type:

•A standard 19-in. (48.3-cm) wide, four-post EIA rack, with mounting posts that conform to English

universal hole spacing, per section 1 of ANSI/EIA-310-D-1992.

•The rack post holes can be square 0.38-inch (9.6 mm), round 0.28-inch (7.1 mm), #12-24 UNC, or

#10-32 UNC when you use the supplied slide rails.

•The minimum vertical rack space per controller must be one RU, equal to 1.75 in. (44.45 mm).

Equipment Requirements

The slide rails sold by Cisco Systems for this controller do not require tools for installation.

Slide Rail Adjustment Range

The slide rails for this controller have an adjustment range of 24 to 36 inches (610 to 914 mm).

Installing the Controller in a Rack

Installing the Slide Rails

This section describes how to install the controller in a rack using the rack kits that are sold by Cisco Systems.

Cisco 5520 Wireless Controller Installation Guide

Installing the Cisco 5520 Wireless Controller

Rack Requirements

To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions

to ensure that the system remains stable. The following guidelines are provided to ensure your safety:This

unit should be mounted at the bottom of the rack if it is the only unit in the rack.When mounting this unit

in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom

of the rack.If the rack is provided with stabilizing devices, install the stabilizers before mounting or

servicing the unit in the rack. Statement 1006

Warning

Step 1 Attach the inner rails to the sides of the controller:

a) Align an inner rail with one side of the controller so that the three keyed slots in the rail align with the three pegs on

the side of the controller (see Attaching Inner Rail to Side of Controller).

b) Set the keyed slots over the pegs, and then slide the rail toward the front to lock it in place on the pegs. The front slot

has a metal clip that locks over the front peg.

c) Install the second inner rail to the opposite side of the controller.

Figure 1: Attaching Inner Rail to Side of Controller

Locking clip on inner rail2Front of controller1

Step 2 Open the front securing plate on both slide-rail assemblies. The front end of the slide-rail assembly has a spring-loaded

securing plate that must be open before you can insert the mounting pegs into the rack-post holes (see Front Securing

Mechanism, Inside of Front End).

Cisco 5520 Wireless Controller Installation Guide

Installing the Cisco 5520 Wireless Controller

Installing the Slide Rails

On the outside of the assembly, push the green arrow button towards the rear to open the securing plate.

Figure 2: Front Securing Mechanism, Inside of Front End

Securing plate shown pulled back to Open position3Front-mounting pegs1

Rack post2

Step 3 Install the outer slide rails into the rack:

a) Align one slide-rail assembly front end with the front rack-post holes that you want to use.

The slide rail front-end wraps around the outside of the rack post and the mounting pegs enter the rack-post holes

from the outside-front (see Front Securing Mechanism, Inside of Front End).

The rack post must be between the mounting pegs and the open securing

plate.

Note

b) Push the mounting pegs into the rack-post holes from the outside-front.

c) Press the securing plate release button, marked PUSH. The spring-loaded securing plate closes to lock the pegs in

place.

d) Adjust the slide-rail length, and then push the rear mounting pegs into the corresponding rear rack-post holes. The

slide rail must be level front-to-rear.

The rear mounting pegs enter the rear rack-post holes from the inside of the rack post.

e) Attach the second slide-rail assembly to the opposite side of the rack. Ensure that the two slide-rail assemblies are

at the same height with each other and are level front-to-back.

f) Pull the inner slide rails on each assembly out toward the rack front until they hit the internal stops and lock in place.

Step 4 Insert the controller into the slide rails:

This controller can weigh up to 67 pounds (59 kilograms) when fully loaded with components. We recommend

that you use a minimum of two people or a mechanical lift when lifting the controller. Attempting this

procedure alone could result in personal injury or equipment damage.

Caution

a) Align the rear of the inner rails that are attached to the controller sides with the front ends of the empty slide rails on

the rack.

b) Push the inner rails into the slide rails on the rack until they stop at the internal stops.

Cisco 5520 Wireless Controller Installation Guide

Installing the Cisco 5520 Wireless Controller

Installing the Slide Rails

c) Slide the release clip toward the rear on both inner rails, and then continue pushing the controller into the rack until

its front slam latches engage with the rack posts.

Figure 3: Inner Rail Release Clip

Outer rail attached to rack post3Inner rail release clip1

Inner rail attached to controller and inserted

into outer rail

Step 5 (Optional) Secure the controller in the rack more permanently by using the two screws that are provided with the slide

rails. Perform this step if you plan to move the rack with controller installed.

With the controller fully pushed into the slide rails, open a hinged slam latch lever on the front of the controller and

insert the screw through the hole that is under the lever. The screw threads into the static part of the rail on the rack post

and prevents the controller from being pulled out. Repeat for the opposite slam latch.

Installing the Cable Management Arm (Optional)

Step 1 With the controller pushed fully into the rack, slide the CMA tab of the CMA arm that is farthest from the controller

onto the end of the stationary slide rail that is attached to the rack post (see Attaching the Cable Management Arm to the

Rear of the Slide Rails). Slide the tab over the end of the rail until it clicks and locks.

The CMA is reversible left to right. To reverse the CMA, see Reversing the Cable Management Arm (Optional)

before installation.

Note

Cisco 5520 Wireless Controller Installation Guide

Installing the Cisco 5520 Wireless Controller

Installing the Cable Management Arm (Optional)

Step 2 Slide the CMA tab that is closest to the controller over the end of the inner rail that is attached to the controller (see

Attaching the Cable Management Arm to the Rear of the Slide Rails). Slide the tab over the end of the rail until it clicks

and locks.

Step 3 Pull out the width-adjustment slider that is at the opposite end of the CMA assembly until it matches the width of your

rack (see Attaching the Cable Management Arm to the Rear of the Slide Rails).

Step 4 Slide the CMA tab that is at the end of the width-adjustment slider onto the end of the stationary slide rail that is attached

to the rack post (see Attaching the Cable Management Arm to the Rear of the Slide Rails). Slide the tab over the end of

the rail until it clicks and locks.

Step 5 Open the hinged flap at the top of each plastic cable guide and route your cables through the cable guides, as required.

Figure 4: Attaching the Cable Management Arm to the Rear of the Slide Rails

CMA tab on width-adjustment slider and end of

stationary outer slide rail

3CMA tab on arm farthest from controller and end of

stationary outer slide rail

Rear of controller4CMA tab on arm closest to the controller and end of

inner slide rail attached to controller

Cisco 5520 Wireless Controller Installation Guide

Installing the Cisco 5520 Wireless Controller

Installing the Cable Management Arm (Optional)

Reversing the Cable Management Arm (Optional)

Step 1 Rotate the entire CMA assembly 180 degrees. The plastic cable guides must remain pointing upward.

Step 2 Flip the tabs at the end of each CMA arm so that they point toward the rear of the controller.

Step 3 Pivot the tab that is at the end of the width-adjustment slider. Depress and hold the metal button on the outside of the

tab and pivot the tab 180 degrees so that it points toward the rear of the controller.

Figure 5: Reversing the CMA

Metal button for rotating2CMA tab on end of width-adjustment slider1

Initial Controller Setup

For instructions on performing initial setup of controller, see the Cisco 5520 Wireless Controller Deployment

Guide .

Cisco 5520 Wireless Controller Installation Guide

Installing the Cisco 5520 Wireless Controller

Reversing the Cable Management Arm (Optional)

System BIOS and Cisco Integrated Management Controller

Firmware

Updating the BIOS and Cisco Integrated Management Controller Firmware

The BIOS and Cisco IMC firmware need not be upgraded when you first bring up the unit.

When you upgrade the BIOS firmware, you must also upgrade the Cisco IMC firmware to the same version

or the controller does not boot. Do not power off the controller until the BIOS and Cisco IMC firmware

are matching or the controller does not boot.

Cisco provides the Cisco Host Upgrade Utility to assist with simultaneously upgrading the BIOS, Cisco

IMC, and other firmware to compatible levels.

Caution

After the firmware is upgraded, do not reset the system to factory default. Doing so will delete the initial

BIOS setup and boot orders.

Warning

The controller uses firmware obtained from and certified by Cisco. Cisco provides release notes with each

firmware image.

The only supported method to update the firmware is using the Cisco Host Upgrade Utility.

Accessing System BIOS

Step 1 Enter the BIOS setup utility by pressing the F2 key when prompted during bootup.

The version and build of the current BIOS are displayed on the Main page of the utility.Note

Step 2 Use the arrow keys to select the BIOS menu page.

Step 3 Highlight the field to be modified by using the arrow keys.

Step 4 Press Enter to select the field that you want to change, and then modify the value in the field.

Step 5 Press the right arrow key until the Exit menu screen is displayed.

Step 6 Follow the instructions on the Exit menu screen to save your changes and exit the setup utility (or press F10). You can

exit without saving changes by pressing Esc.

Cisco 5520 Wireless Controller Installation Guide

Installing the Cisco 5520 Wireless Controller

System BIOS and Cisco Integrated Management Controller Firmware

Cisco 5520 Wireless Controller Installation Guide

Installing the Cisco 5520 Wireless Controller

Accessing System BIOS

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