Cisco Systems 4900M User Manual

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Cisco Catalyst 4900M Switch Installation Guide

January 2008

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Text Part Number: 78-18350-01

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The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.

The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate radio-frequency energy. If it is not installed in accordance with Cisco’s installation instructions, it may cause interference with radio and television reception. This equipment has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.

Modifying the equipment without Cisco’s written authorization may result in the equipment no longer complying with FCC requirements for Class A or Class B digital devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television communications at your own expense.

You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:

• Turn the television or radio antenna until the interference stops.

• Move the equipment to one side or the other of the television or radio.

• Move the equipment farther away from the television or radio.

• Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses.)

Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.

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Cisco Catalyst 4900M Switch Installation Guide

Systems, Inc.; and Access Registrar, Aironet, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, Cisco,

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Preface ix

Audience ix

Organization ix

Preface

This preface describes the audience, organization, and conventions of the Cisco Catalyst 4900M Switch Installation Guide and provides information on how to

obtain related documentation.

Only trained and qualified service personnel (as defined in IEC60950 and AZ/NZS 60950) should install, replace, or service the equipment.

Organization

This guide is organized as follows:

Chapter Title Description

Chapter 1 Product Overview Describes the hardware features and functionality of the

Catalyst

Chapter 2 Site Planning Describes how to prepare your site for the installation of the

switch.

Chapter 3 Installing the Switch Details how to install the Catalyst 4900M switch.

Chapter 4 Troubleshooting the

Installation

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Provides troubleshooting guidelines for the initial hardware installation and suggests steps to help isolate and resolve problems.

4900M switch.

Cisco Catalyst 4900M Switch Installation Guide

Chapter Title Description

Appendix A Specifications Lists the Catalyst 4900M switch system specifications.

Appendix B Translated Safety

Warn in g s

Repeats in multiple languages the warnings in this guide.

Product Overview

This chapter describes the Catalyst 4900M switch, as well as system features and components.

This chapter contains these sections:

• Catalyst 4900M Switch Applications, page 1-1

• Catalyst 4900M Switch Software Features, page 1-6

• Hardware System Features, page 1-6

• Switch Components, page 1-7

Catalyst 4900M Switch Applications

The Catalyst 4900M switch (see Figure 1-1) is designed for top-of-rack server aggregation. It simplifies the transition from 1 GB to 10 GB attached devices in the data center. The Cisco Catalyst 4900M is a top of rack Ethernet switch optimized for mixing 10/100/1000 and 10 Gigabit Ethernet access devices. It is a fixed Cisco IOS based Layer 2+ switch with 8 fixed wire speed X2 ports on the base unit with 2 optional half card slots. The half card slots can accommodate the following cards in any combination:

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• 20-port wirespeed10/100/1000 (RJ-45) half card

• 4-port wire speed 10GbE (X2) half card

• 8-port (2:1) 10GbE (X2) half card (Twin Gig compatible)

Cisco Catalyst 4900M Switch Installation Guide

1-1

Catalyst 4900M Switch Applications

The half cards provide a wide variety of combinations of Gigabit Ethernet and 10 Gigabit Ethernet media types. The half slots also provide investment protection for further additions of 1 GE and 10 GE media.

Figure 1-1 Catalyst 4900M Switch

Chapter 1 Product Overview

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The modules that fit into the open slots are:

• 20-port 1 GE RJ-45 (WS-X4920-GB-RJ45=)

• 4-port X2 wire speed 10 Gigabit Ethernet (WS-X4904-10GE=)

• 8-port X2 2:1 oversubscribed 10 Gigabit Ethernet (WS-X4908-10GE=)

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Chapter 1 Product Overview

Figure 1-2 20-Port 1 GE RJ-45 (WS-X4920-GB-RJ45=)

Catalyst 4900M Switch Applications

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1 Module Status LED 2 Port LEDs

Specification Description

Module type 10/100/1000BASE-T Fast Ethernet switching module

Port duplex mode Half or full duplex mode

Port speed 10, 100, or 1000 Mbps

Number of ports 20

Connector type RJ-45

Cable type Category 5

Power over Ethernet Not supported

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Chapter 1 Product Overview

Catalyst 4900M Switch Applications

Figure 1-3 4-Port X2 Wire Speed 10 Gigabit Ethernet (WS-X4904-10GE=)

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1 Module Status LED 2 Port LEDs

Specification Description

Module type 10 Gigabit X2 fiber Ethernet switching module

Port duplex mode Full duplex mode

Port speed 10 Gbps

Number of ports 4

Connector type SC type

Cable type MMF or SMF

1-4

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Chapter 1 Product Overview

Catalyst 4900M Switch Applications

Figure 1-4 8-Port X2 2:1 Oversubscribed 10 Gigabit Ethernet (WS-X4908-10GE=)

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1 Module Status LED 2 Port LEDs

Specification Description

Module type 10 Gigabit X2 or TwinGig fiber Ethernet switching

module

Port duplex mode Full duplex mode

Port speed 10 Gbps or 2 Gbps

Number of ports 8

Connector type SC type

Cable type MMF or SMF

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Catalyst 4900M Switch Software Features

Note When using TwinGig and X2 transceivers on this module, keep them grouped in

pairs as follows: 1-2, 3-4, 5-6, 7-8. Inserting a TwinGig or X2 transciever in any port will affect the capabilities of its partner port, and both will be set to handle the same type automatically. Mixing within a port group will not work. As an example, you would not be able to have an X2 in port 1 and a TwinGig in port 2 and expect both of them to function.

The Catalyst 4900M switch has a 320-Gbps, nonblocking, full-duplex switching fabric, providing 250 million packets-per-second of switching capacity for high-speed applications. The Catalyst Ethernet ports and other ports as configured.

A removable automatic variable speed fan tray for low-noise operation at room temperature and removable and redundant 1000 supplies provide fault-tolerance protection for the switch. See the

Power to the Catalyst 4900M Switch” section on page 3-11.

Chapter 1 Product Overview

4900M chassis has eight 10 Gigabit

W AC or 1000 W DC power

“Connecting

Catalyst 4900M Switch Software Features

For up-to-date information on software features, refer to the release notes and software configuration guide for your software release.

Hardware System Features

The Catalyst 4900M switch is a high-performance dedicated Ethernet switch that fully integrates into the Catalyst family of switches using Catalyst 4500 series system software.

The following is an overview of the Catalyst 4900M hardware features:

• Eight 10 Gigabit Ethernet uplink ports using X2 interfaces

• Serial console management port using an RJ-45 interface

• A removable automatic variable speed fan tray for low-noise operation at

room temperature

• Redundant and removable 1000 W AC or DC power supplies

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Chapter 1 Product Overview

• 512-MB SDRAM (fixed)

• 128-MB embedded Flash memory

• 360-Gbps switching capacity, 250 million packets-per-second actual

forwarding rate

• EtherChannel at 10/100/1000 Mbps, as well as 10 Gbps

• Host and device USB 2.0 ports

• Compact flash memory slot

Switch Components

This section describes the Catalyst 4900M hardware components.

Traffic Ports

There are eight 10-Gigabit Ethernet uplink ports using X2 interfaces and other traffic ports depending on the switching modules installed.

Switch Components

TwinGig Modules

On the WS-4908-10GE modules only, TwinGig converter modules may be used in place of X2 modules if you need to provide 1 GB SFP connections. When you insert the TwinGig into one port, its neighbor automatically converts to 1 GE interfaces whether it has a TwinGig installed or not, so you need to group your TwinGigs next to one another. The neighboring port to a TwinGig port cannot support an X2.

Installation documentation for Cisco TwinGig converter modules can be found at:

http://www.cisco.com/en/US/docs/switches/lan/catalyst3750e_3560e/hardware/i nstall/notes/1757202.html

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Switch Components

Rear Chassis Connections and Features

The Reset button is used to restart the switch. Use a paper clip or other small, pointed object to press the Reset button.

A console serial port (RJ-45) provides for switch management using standard console equipment. (See

Appendix A, “Specifications,” for the console and management ports.

The Management port on the rear panel offers the same TCP/IP based management services available via inband access (telnet SNMP etc.). IP address configuration via BOOTP is supported on the Management port; it also supports image download to the switch.

A USB connector is provided for future expansion.

The Compact Flash port accepts both 64-MB and 128-MB Type 1 compact Flash cards. You can use it for file transfer tasks such as loading a new software image. The Flash card is optional and can be obtained from third-party suppliers.

For more information, refer to Using the Compact Flash on the Catalyst 4500 Series Supervisor Engines at the following URL:

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/hardware/configura tion/notes/OL_2788.html

Figure 1-5.) A connector pinout table is provided in

Chapter 1 Product Overview

1-8

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Chapter 1 Product Overview

Figure 1-5 View of the Rear Panel

1 2 1 2 3

4 5 7 8

1 Input OK (power supply) 5 Console port 2 Output OK (power supply) 6 Management port 3 Fan Status LED 7 USB connection 4 Reset button 8 Compact Flash slot

Switch Components

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Front Panel LEDs

Figure 1-6 Front LEDs

1 PS1 LED 4 System LED 2 PS2 LED 5 10Gig port LEDs 3 Fan LED

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1-9

Switch Components

Chapter 1 Product Overview

The LEDs on the front and rear panel of the Catalyst 4900M switch (see

Figure 1-5 and Figure 1-6 ) provide status information as follows:

• System LED indicates the operating state of the Catalyst 4900M switch.

• PS1 LED indicates the internal power supply status.

• PS2 LED indicates the internal power supply status.

• FAN LED indicates the fan tray status.

• A link status LED is below the 10-GB uplink ports.

A description of the LED functions is provided in Ta ble 1-1.

Ta b l e 1-1 LED Descriptions

LED Color or State Description

System

(front)

CON

(rear)

Green Red Flashing Yel low

Off

Green

Off

At startup, the Catalyst 4900M performs a series of diagnostic tests: All tests pass A test other than an individual port test fails System boot or diagnostic tests in progress System is in rommon mode or a power supply has failed Switch is disabled

10/100 BASE-T console port is in link-up state

10/100 BASE-T console port is in link-down state or not connected

1-10

MGT

Green

(rear)

Off

Cisco Catalyst 4900M Switch Installation Guide

There are no blinking, red, or yellow states for this port

10/100/1000BASE-T Management port is in link-up state

10/100/1000BASE-T Management port is in link-down state or not connected

There are no blinking, red, or yellow states for this port

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Chapter 1 Product Overview

Table 1-1 LED Descriptions (continued)

LED Color or State Description

Port

(front)

Fan (front and rear)

PS1 and PS2

(front)

1. If either LED is green and the other is OFF the power supply is probably not plugged in. If it is

Switch Components

Green Yel low Flashing yellow Off

Off

Green Red

Off Green Red

red, the supply is either plugged in and not switched on or it is faulty. It may be necessary to interrogate the system for further status using the CLI.

Port is operational Port is disabled by user Power-on self-test indicates faulty port No signal detected or link configuration failure

No power to the switch or fans (the tray may not be plugged in especially if one or more of the power supplies status LED is green) Fan tray operational Fault detected

No power to the PS Operational1 Fault detected or the on/off switch is set to off while the power supply is plugged in

Chassis Cooling

Note For environmental specifications, see Chapter 2, “Site Planning.”

The hot-swappable system fan tray provides cooling air for the internal chassis components. The fans exhaust air to the left, and fresh air is drawn in from the right side of the chassis.

Caution When the fan tray is removed, internal circuitry is exposed that should not be

touched by tools or fingers. The system should not be left operating without a fan tray for longer than is necessary to replace a faulty fan tray with a new one.

Figure 1-7 shows the direction of airflow going in and out of the switch.

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Switch Components

Figure 1-7 Catalyst 4900M Airflow

Chapter 1 Product Overview

232124

There are five fans in the fan tray. If an individual fan fails, the other fans continue to run. Sensors monitor the internal air temperatures. The number of fans in operation and their speed varies according to the internal temperature for the quietest operation possible. If the air temperature exceeds a desired threshold, the environmental monitor displays warning messages.

Power Supplies

Note For complete power specifications for the Catalyst 4900M switch, see

Appendix A, “Specifications.”

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Chapter 1 Product Overview

The Catalyst 4900M switch has two redundant internal 1000 W AC or 1000

The internal power supplies have individual power cords and status LEDs (PS1 and PS2 on the front panel). There are also LEDs on the power supplies that show status for the input (Input OK) and output (Output OK) currents. A power cord is used to connect the power supplies to the site AC power source. There is a power switch on the AC Catalyst when a power cord is plugged into a power supply and the switch is set to the On position. DC power supplies do not use a power supply cord or have an on/off switch.

The switch starts with only one power supply plugged in, but redundant failover and load sharing is not available in this configuration. Cisco recommends that you always connect both power supplies to separate AC or DC circuits for optimal power reliability.

For safety reasons, the AC power supply must be switched off and unplugged before it is removed from a chassis or inserted into a chassis. DC supplies should have power shut off from the source before they are removed.

If only one power supply is used, you must use the blank faceplate supplied to cover the empty power bay.

Switch Components

W DC power supplies.

4900M switch power supplies; AC power is present

Environmental Monitoring of the Power Supplies

Using the environmental monitoring and reporting functions, you can maintain normal system operation by resolving adverse environmental conditions prior to loss of operation.

Each power supply monitors its own temperature and output voltages. The Catalyst reports status through software.

4900M switch senses the operating condition of the power supply and

Power Management for the Catalyst 4900M Switch

You can select AC or DC power supplies for your switch. The Catalyst 4900M switch supports the following power supplies:

• 1000 W AC

• 1000 W DC

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1-13

Switch Components

A redundant power supply can be identified and diagnosed by a running system regardless of its input status. AC and DC supplies are interchangeable.

Power Management Modes

The Catalyst 4900M switch supports the redundant power management mode. In this mode, if both power supplies are operating normally, each provides from 20/80 to 45/55 percent of the total system power requirements at all times. If one power supply fails, the other unit increases power to 100 percent of the total power requirement.

Chapter 1 Product Overview

1-14

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Chapter 1 Product Overview

Serial Number Location

Figure 1-8 shows the location of the serial number for your switch.

Figure 1-8 Catalyst 4900M Serial Number

Serial Number Location

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202519

SN: XXXNNNNXXXX

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Serial Number Location

Chapter 1 Product Overview

1-16

Cisco Catalyst 4900M Switch Installation Guide

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CHAPTER

Site Planning

This chapter describes how to prepare your site for installation of the Catalyst

• Site Environmental Requirements, page 2-1

• Site Power Requirements, page 2-2

• Grounding Requirements, page 2-4

• Safety Overview, page 2-5

• Site Planning Checklist, page 2-7

Note A site planning checklist is provided on page 2-8 to help ensure that you complete

all site planning activities before you install the switch.

Site Environmental Requirements

4900M switch and contains these sections:

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Planning a proper location for the switch and layout for your equipment rack or wiring closet is essential for successful system operation. You should install the switch in an enclosed, secure area, ensuring that only qualified personnel have access to the switch and control of the environment. Equipment that is placed too closely together or that is inadequately ventilated can cause system overtemperature conditions. In addition, poor equipment placement can make chassis panels inaccessible and difficult to maintain.

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Site Power Requirements

The switch operates as a standalone system mounted in a rack in a secure wiring closet. It requires a dry, clean, well-ventilated, and air-conditioned environment. To ensure normal operation, maintain ambient airflow. If the airflow is blocked or restricted, or if the intake air is too warm, an overtemperature condition can occur. The switch environmental monitor can then shut down the system to protect the system components.

To ensure normal operation and avoid unnecessary maintenance, plan your site configuration and prepare your site before installation. After installation, make sure that the site maintains an ambient temperature of 0 to 40° C (32 to 104° F). It is essential to keep the area around the chassis as free from dust and foreign conductive material (such as metal flakes from nearby construction activity) as is possible.

Multiple switches can be rack-mounted with little or no clearance above and below the chassis. However, when mounting a switch in a rack with other equipment, or when placing it on the floor near other equipment, ensure that the exhaust from other equipment does not blow into the intake vents of the chassis.

Cooling air is drawn in through the right side and exhausted through the left side of the chassis. Keep the sides and rear clear of obstructions, including dust and foreign conductive material, and away from the exhaust ports of other equipment.

Appendix A, “Specifications,” lists the operating and nonoperating environmental

site requirements for the switches. To maintain normal operation and ensure high system availability, maintain an ambient temperature and EMI-free and continuous power at your site. The environmental ranges listed in those within which the switch will continue to operate; however, a measurement that approaches the minimum or maximum of a range indicates a potential problem. You can maintain normal operation by anticipating and correcting environmental anomalies before they exceed the maximum operating range.

Chapter 2 Site Planning

Appendix A are

Site Power Requirements

This section describes the installation site power requirements for the Catalyst

This section consists of the following sections:

• Preinstallation Requirements, page 2-3

• Warnings and Cautions, page 2-3

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4900M switch. Verify your site power before you install the switch.

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Chapter 2 Site Planning

• EMI Recommendations, page 2-4

• Power Requirements and Heat Dissipation, page 2-4

Preinstallation Requirements

Follow these requirements when preparing your site for the Catalyst 4900M switch installation:

• Connect each switch to separate wiring on a dedicated circuit; provide each

switch with its own branch circuit connection with sufficient overcurrent protection and direct grounding to the branch circuit.

• To prevent a loss of input power, be sure the total maximum load on each AC

circuit is within the current ratings of the wiring and breakers.

Warnings and Cautions

Follow these precautions when preparing your site for the Catalyst 4900M switch installation:

Site Power Requirements

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Caution The total maximum load on each AC or DC -input power circuit must be within

the rating of the wiring and breaker. An overload of input power can result if this requirement is not met.

Warning

Read the installation instructions before connecting the system to the power source.

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

Ultimate disposal of this product should be handled according to all national laws and regulations.

Statement 1004

Statement 1074

Statement 1040

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Grounding Requirements

EMI Recommendations

Follow these guidelines when setting up the site wiring. When planning the location of the new system, consider electromagnetic interface (EMI), the distance limitations for signaling, and connector compatibility.

When wires are run for any significant distance in an electromagnetic field, radio frequency interference (RFI) can occur between the field and the signals on the wires.

• Bad plant wiring can result in radio frequency interference.

• Strong EMI, especially when caused by lightning or radio transmitters, can

destroy the signal drivers and receivers in the switch and can create an electrical hazard by conducting power surges through lines and into equipment.

Note To predict and remedy strong EMI, you might need to consult RFI experts.

Chapter 2 Site Planning

Power Requirements and Heat Dissipation

The power requirements might be useful for planning the power distribution system needed to support the switches. Heat dissipation is an important consideration for sizing the air-conditioning requirements for an installation. Refer to Catalyst 4900M switch.

Appendix A, “Specifications,” for the power and heat ratings for a

Grounding Requirements

Grounding is recommended on all AC or DC installations, using only approved copper connectors. Attach the provided two hole ground lug to the chassis using M4x 8mm bolts and then to the central office (CO) or other interior ground system with number 6 as shown in

Cisco Catalyst 4900M Switch Installation Guide

2-4

AWG wire. The grounding connector is on the rear of the chassis,

Figure 2-1.

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Chapter 2 Site Planning

Figure 2-1 Grounding Pad Location

1 Grounding pad

Safety Overview

This section provides safety information that you should read and understand to ensure a safe switch installation.

Safety Overview

232131

Ensuring Safety

Follow these guidelines to ensure your safety and protect the equipment. This list is not inclusive of all potentially hazardous situations that you may be exposed to as you install the switch, so be alert.

Warning

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Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician if you are uncertain that suitable grounding is available.

Statement 1030

Statement 1024

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2-5

Safety Overview

Note To completely de-energize the system, unplug the power cord.

Chapter 2 Site Planning

• Always use caution when lifting heavy equipment. See the “Lifting the

Chassis Safely” section on page 3-4 before lifting the Catalyst 4900M switch.

• Always turn all power supplies off by unplugging all power cords before

installing or removing a chassis.

• Keep the chassis area clear and free of dust during and after installation.

• Keep tools and chassis components off of the floor and away from foot traffic.

• Avoid wearing jewelry (including rings and chains) or other items that could

get caught in the chassis. Avoid wearing any loose clothing, or securely fasten items such as ties, scarves, or sleeves.

• Install the system in compliance with the following local and national

electrical codes:

–

United States—National Fire Protection Association (NFPA 70); United States National Electrical Code

–

Canada—Canadian Electrical Code, Part I, CSA C22.1

–

Other countries—International Electrotechnical Commission (IEC) 60364, Part 1 through Part 7

Working Safely with Electricity

Follow these basic guidelines when working with any electrical equipment:

• Locate the emergency power-off switch for the room in which you are

working before beginning installation.

• Disconnect all power and external cables before installing or removing a

chassis.

• Do not work alone when potentially hazardous conditions exist.

• Never assume that power has been disconnected from a circuit; always check.

• Do not perform any action that creates a potential hazard to people or makes

the equipment unsafe.

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Chapter 2 Site Planning

• Examine your work area carefully for possible hazards such as moist floors,

ungrounded power extension cables, and missing safety grounds.

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) damage occurs when electronic cards or components are improperly handled and can result in complete or intermittent failures. Follow these guidelines to prevent ESD damage:

• Always use an ESD-preventive wrist or ankle strap, and ensure that it makes

maximum contact with the skin.

• When coming into contact with any internal components, always use a wrist

strap connected to one of the following:

–

ESD wrist strap connector

–

Any unpainted grounded surface on the chassis or equipment rack

Caution Periodically check the resistance value of the antistatic strap. The measurement

should be between 1 and 10 megohms (Mohms).

Site Planning Checklist

• Handle cards by the edges only.

• Avoid contact between the modules and clothing. The wrist strap protects

only the card from ESD voltages on the body; ESD voltages on clothing can still cause damage.

Site Planning Checklist

Table 2-1 lists the site planning activities that you should perform before you

install the Catalyst 4900M switch. Completing each activity helps to ensure a successful switch installation.

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Chapter 2 Site Planning

Site Planning Checklist

Ta b l e 2-1 Site Planning Checklist

Task No. Planning Activity Verified By Time Date

1 Space evaluation:

Space and layout Floor covering Shock and vibration Lighting Maintenance access

2 Environmental evaluation:

Ambient temperature Humidity Altitude Atmospheric contamination Airflow

3 Power evaluation:

Input power type Receptacle proximity to the equipment Dedicated (separate) circuits for redundant power supplies UPS for power failures

4 Grounding evaluation:

Circuit breaker size

5 Cable and interface equipment evaluation:

Cable type Connector type Cable distance limitations Interface equipment (transceivers)

6 EMI evaluation:

2-8

Distance limitations for signaling Site wiring RFI levels

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CHAPTER

Installing the Switch

This chapter describes how to install the Catalyst 4900M switch. For first-time installations, perform the procedures in the following sections in the order listed.

• Checking the Contents, page 3-1

• Rack-Mounting the Switch, page 3-2

• Connecting Power to the Catalyst 4900M Switch, page 3-11

• Connecting DC Power to the Catalyst 4900M Switch, page 3-13

• Optical Connections, page 3-15

• Configurable Modules, page 3-15

Note Before starting the installation procedures in this chapter, complete the site

planning checklist in activities were completed.

Chapter 2, “Site Planning,” to verify that all planning

Checking the Contents

Note Do not discard the shipping container when you unpack the switch. Flatten the

shipping cartons and store them. You will need the container if you need to move or ship the switch in the future.

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Rack-Mounting the Switch

To check the contents of the shipping container follow these steps:

Step 1 Check the contents of the accessories kit against the packing slip. Verify that you

received all listed equipment, which should include the following:

• Switch hardware and software documentation, if ordered

• Optional equipment that you ordered, such as network interface cables,

transceivers, or special connectors

Step 2 To begin installation, proceed to the “Rack-Mounting the Switch” section on

page 3-2.

Rack-Mounting the Switch

A standard rack-mount kit is included for mounting the switch in a standard 19-inch (48.3 unobstructed front posts, a minimum depth between the front and rear mounting posts of 19.25 This kit is not suitable for racks with obstructions (such as a power strip) that could impair access to the switch.

cm) four-post equipment rack. A standard equipment rack has two

inches (48.9 cm), and a maximum depth of 32 inches (81.3 cm).

Chapter 3 Installing the Switch

3-2

A separate mounting kit for a two-post telco rack is available, and differs mainly in the dimensions and in the absence of the rear mounts.

Caution Before installing the chassis in a rack, read the “Site Environmental

Requirements” section on page 2-1 to become familiar with the proper site and

environmental conditions. Failure to read and follow these guidelines could lead to an unsuccessful installation and possible damage to the system and components.

Caution This unit is meant to be rack-mounted, and is not intended to bear more than its

own weight. Do not stack more than two on a table top, the added weight may damage the bottom chassis.

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Chapter 3 Installing the Switch

Rack-Mounting the Switch

Warning

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.

Rack-Mounting Guidelines

Before rack-mounting the switch, ensure the following:

• The equipment rack is the proper size.

–

The width of the rack, between the two front mounting strips or rails, must be 17.75

–

The depth of the rack, between the front and rear mounting strips, must be at least 19.25

–

The rack must have sufficient vertical clearance to insert the chassis. The chassis height is 1.75 inches (4.45 cm).

• The equipment rack is stable and in no danger of falling over.

Statement 1006

inches (45.09 cm).

inches (48.9 cm) but not more than 32 inches (81.3 cm).

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–

Ensure that the shelf is constructed to support the weight and dimensions of the chassis. For physical specifications, see

Appendix A,

“Specifications.”

–

We recommend that you bolt the rack to the floor.

–

Mount the unit at the bottom of the rack if it is the only unit in the rack.

–

Install heavier equipment in the lower half of the rack to maintain a low center of gravity and prevent the rack from becoming top-heavy and tipping over.

–

Install the stabilizers before mounting or servicing the switch in the rack (if the rack is provided with stabilizing devices).

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3-3

Rack-Mounting the Switch

• The equipment rack is properly ventilated.

Chapter 3 Installing the Switch

–

Install the chassis in an enclosed rack only if it has adequate ventilation or an exhaust fan; use an open rack whenever possible.

–

Ensure that the ambient temperature of the rack environment does not exceed a maximum temperature of 104° F (40° C). Note that if the switch is installed in a closed or multiunit rack assembly, the ambient operating temperature of the rack environment might be higher than the ambient room temperature.

–

Note that a ventilation system in a closed rack that is too powerful might also prevent cooling by creating negative pressure around the chassis and redirecting the air away from the chassis intake vent. If necessary, operate the chassis with the rack open.

–

To prevent airflow restriction, allow at least 3 inches (7.6 cm) of clearance around the ventilation openings on the sides of the chassis.

–

Use baffles correctly to assist in cooling the chassis.

–

Note that equipment near the bottom of a rack may generate excessive heat that is drawn upward and into the intake ports of equipment above, leading to overtemperature conditions in the chassis at or near the top of the rack.

–

Consider the equipment and cabling that is already installed in the rack. Ensure that cables from other equipment will not obstruct the airflow through the chassis or impair access to the power supplies or switching modules. Route cables away from field-replaceable components to avoid disconnecting cables unnecessarily for equipment maintenance or upgrades.

–

Allow at least 3 to 4 feet (91.4 to 121.9 cm) of clearance behind the rack for maintenance and removal of switch assemblies. If the rack is mobile, you can push it back within 1 foot (30.45 cm) of a wall or cabinet for normal operation and pull it out when necessary for maintenance.

Lifting the Chassis Safely

The chassis is not intended to be moved frequently. Before you install the switch, ensure that your site is properly prepared so that you can avoid moving the chassis later to accommodate power sources and network connections.

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Chapter 3 Installing the Switch

Whenever you lift a chassis or any heavy object, follow these guidelines:

• Ensure that your footing is solid, and balance the weight of the chassis

• Lift the chassis slowly; never move suddenly or twist your body as you lift.

• Keep your back straight and lift with your legs, not your back. If you must

• Always disconnect all external cables before lifting or moving the chassis.

Figure 3-1 Unsafe Lifting Practices

Rack-Mounting the Switch

between your feet.

bend down to lift the chassis, bend at the knees, not at the waist, to reduce the strain on your lower back muscles. (See

Figure 3-1.)

Required Installation Tools

The following tools and equipment are required to install the chassis:

• Number 1, number 2 Phillips, and 3/16-inch flat-blade screwdriver

• Antistatic mat or antistatic foam

• Your own ESD grounding strap or the disposable ESD strap included with the

system

The following tools and equipment are required to install the chassis in a rack:

• Rack-mount kit

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H1369a

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Rack-Mounting the Switch

• Tape measure and level

Rack-Mounting the Catalyst 4900M Switch

Follow these steps to install the Catalyst 4900M switch in a four-post rack.

Step 1 Prepare for installation:

a. Place the chassis on the floor or on a sturdy table as close as possible to the

rack. Leave enough clearance to allow you to move around the chassis.

b. Use a tape measure to measure the depth of the rack. Measure from the

outside of the front mounting posts to the outside of the rear mounting strip. The depth must be at least 19.0 28

inches (71.1 cm).

c. Measure the space between the inner edges of the left front and right front

mounting posts to ensure that it is 17.75 is 17.5

inches [44 cm] wide and must fit between the mounting posts.)

d. Open the rack-mount kit, and refer to the component checklist to verify that

all parts are included.

inches (48.2 cm) but not greater than

inches (45.09 cm) wide. (The chassis

Chapter 3 Installing the Switch

3-6

Ta b l e 3-1 Rack-Mount Kit Checklist

Quantity Part Description Received

2 L brackets

12 M4 Phillips Flat-head screws

4 12-24 x 3/4-inch Phillips binder-head screws

4 10-32 x 3/4-inch Phillips binder-head screws

Note Figure 3-2 illustrates how to attach the front of the switch to the rack. You

will also need to attach the rear of the switch to the rack.

Step 2 Note that the L brackets connect the chassis to the rack. You can mount the

brackets to the front or rear mounting holes of the chassis, depending on which

end is in the front of the rack.

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Chapter 3 Installing the Switch

Note Some equipment racks provide a power strip along the length of one of

the rear posts. If the rack has this feature, consider the position of the strip when planning fastener points. Before installing the L brackets on the chassis, determine whether to install the chassis from the front or the rear of the rack.

Attach the left and right L brackets using the four M4 Phillips pan-head screws provided in the rack-mount kit. (See the front bracket.

Figure 3-2 Attaching the L Brackets to the Switch

Rack-Mounting the Switch

Figure 3-2.) Then slide the rear bracket into

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232125

3-7

Rack-Mounting the Switch

Step 3 Install the chassis in the rack as follows:

a. Position the chassis in the rack (see Figure 3-3):

b. Align the mounting holes in the front and rear L brackets with the mounting

c. Secure the chassis using eight (two on each flange) 12-24 x 3/4-inch screws

d. Use a tape measure and level to ensure that the chassis is installed straight and

Chapter 3 Installing the Switch

–

If the chassis front panel is in the front of the rack, insert the rear of the chassis between the mounting posts.

–

If the rear of the chassis is in the front of the rack, insert the front of the chassis between the mounting posts.

holes in the equipment rack.

through the elongated holes in the L brackets and into the threaded holes in the mounting posts.

level.

3-8

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Chapter 3 Installing the Switch

Figure 3-3 Installing the Switch in the Rack

Rack-Mounting the Switch

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202519

232126

Step 4 Attach the cable guide to the right or left side of the chassis mount.

Cisco Catalyst 4900M Switch Installation Guide

3-9

Rack-Mounting the Switch

Figure 3-4 Installing the Cable Guide

Chapter 3 Installing the Switch

232127

3-10

Step 5 Do not connect the power cord at this time. Proceed to the “Connecting Power to

the Catalyst 4900M Switch” section on page 3-11.

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Chapter 3 Installing the Switch

Connecting Power to the Catalyst 4900M Switch

Follow these steps and warnings when connecting power to the Catalyst 4900M switch:

Step 1 Prior to connecting the power supply to a power source, ensure that all of the site

power and grounding requirements described in been met and the chassis is properly grounded as described in the “Grounding

Requirements” section on page 2-4. The grounding pad for the switch is shown in Figure 3-5.

Figure 3-5 Grounding Pad Location

Chapter 2, “Site Planning,” have

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1 Grounding pad

Warning

Step 2 Plug the power cords into the power supplies. Refer to Figure 3-6 for the plug

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

Statement 1019

location.

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3-11

Connecting Power to the Catalyst 4900M Switch

Figure 3-6 AC Power Supply

Chapter 3 Installing the Switch

2 2

5 6

232129

1 Captive screw 4 AC power connection 2 Handle 5 INPUT OK LED 3 On/off switch 6 OUTPUT OK LED

Step 3 Connect the other end of the power cords to an AC-power input source. If both

power supplies will be used, make sure they are on different circuits.

Step 4 Turn the power switches to the ON position. Step 5 Verify power supply operation by looking at the front panel power supply LEDs:

3-12

• The PS1 or PS2 LED is green when the power supply and fans are functioning

normally.

• The PS1 or PS2 LED is red when the power supply is not functioning

normally. The on/off switch may be set to off while the power supply is plugged in, or the power supply may be defective and not providing DC power to the switch. There may also be a fan failure.

• The PS1 or PS2 LED is off when there is no power supply installed.

From the system console, enter the show power command to display the power supply and system status. For more information on this command, see the command reference publication for your software release.

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Chapter 3 Installing the Switch

Connecting DC Power to the Catalyst 4900M Switch

If the LEDs or show power command indicate a power or other system problem, see

Chapter 4, “Troubleshooting the Installation,” for troubleshooting

information.

Connecting DC Power to the Catalyst 4900M Switch

Follow these steps and warnings when connecting DC power to the Catalyst

4900M switch:

Warning

Step 1 Prior to connecting the power supply to a power source, ensure that all of the site

Before performing any of the following procedures, ensure that power is removed from the DC circuit.

This unit is intended for installation in restricted access areas. A restricted access area can be accessed only through the use of a special tool, lock and key, or other means of security.

This product requires short-circuit (overcurrent) protection, to be provided as part of the building installation. Install only in accordance with national and local wiring regulations.

Hazardous voltage or energy may be present on DC power terminals. Always replace cover when terminals are not in service. Be sure uninsulated conductors are not accessible when cover is in place.

power and grounding requirements described in

Statement 1003

Statement 1017

Statement 1045

Statement 1075

Chapter 2, “Site Planning,” have been met and the chassis is properly grounded as described in the “Grounding

Requirements” section on page 2-4.

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Step 2 Remove the safety cover from the power terminal. Step 3 Connect the power supply ground terminal to earth ground.

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Connecting DC Power to the Catalyst 4900M Switch

Figure 3-7 DC Power Supply

Chapter 3 Installing the Switch

2 23

5 6

232130

1 Captive screw 5 Positive terminals 2 Handle 6 Negative terminals 3 On/off switch 7 INPUT OK LED 4 Ground terminal 8 OUTPUT OK LED

Step 4 Connect the positive and negative power cables into the power supplies using a

number 2 Phillips screwdriver.

Note The DC power cables may use AWG #10 to AWG #12 wire.

3-14

Step 5 Replace the safety cover over the power terminals. Step 6 Connect the other end of the power cables to an DC-power input source. If both

power supplies will be used, make sure they are on different circuits.

Step 7 Turn on the power from the power source. Turn the DC supply on/off switch to

ON.

Step 8 Verify power supply operation by looking at the front panel power supply LEDs:

• The PS1 or PS2 LED is green when the power supply is functioning normally.

• The PS1 or PS2 LED is red when the power supply is not functioning

normally.

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Chapter 3 Installing the Switch

• The PS1 or PS2 LED is off when the power supply is not connected to a power

source.

If the LEDs or show power command indicate a power or other system problem, see

Chapter 4, “Troubleshooting the Installation,” for troubleshooting

information.

Optical Connections

The Cisco 4900M switch has up to 24 ports that can be configured with X2 modules with SC connectors. Module types supported are documented at:

http://www.cisco.com/en/US/products/hw/modules/ps5455/products_device_sup port_table09186a00803857e7.html

Optical Connections

Generic connection instructions for the X2 modules are at:

http://www.cisco.com/en/US/docs/interfaces_modules/transceiver_modules/inst allation/note/78_16705.html

Installation documentation for Cisco TwinGig converter modules can be found at:

http://www.cisco.com/en/US/docs/switches/lan/catalyst3750e_3560e/hardware/i nstall/notes/1757202.html

Configurable Modules

All Catalyst 4900M modules support hot swapping, which lets you install, remove, replace, and rearrange switching modules without turning off the system power. When the system detects that a switching module has been installed or removed, it runs diagnostic and discovery tests automatically, acknowledges the presence or absence of the module, and resumes system operation with no operator intervention.

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Configurable Modules

This section describes the following topics:

• Required Tools, page 3-16

• Removing Switching Modules, page 3-16

• Installing Switching Modules, page 3-19

Required Tools

You will need these tools to install supervisor engines and switching modules in the Catalyst

• Number 1 and number 2 Phillips screwdrivers for the captive installation

• 3/16-inch flat-blade screwdriver for the captive installation screws on other

• Antistatic mat or antistatic foam

• Wrist strap or other grounding device

Chapter 3 Installing the Switch

4900M series switches:

screws on most modules

modules

Note Whenever you handle switching modules, use a wrist strap or other grounding

device to prevent ESD damage.

Removing Switching Modules

Warning

Cisco Catalyst 4900M Switch Installation Guide

3-16

Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or view directly with optical instruments.

Statement 1051

Hazardous voltage or energy is present on the backplane when the system is operating. Use caution when servicing.

Statement 1034

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Chapter 3 Installing the Switch

Configurable Modules

Warning

Voltages that present a shock hazard may exist on Power over Ethernet (PoE) circuits if interconnections are made using uninsulated exposed metal contacts, conductors, or terminals. Avoid using such interconnection methods, unless the exposed metal parts are located within a restricted access location and users and service people who are authorized within the restricted access location are made aware of the hazard. A restricted access area can be accessed only through the use of a special tool, lock and key or other means of security.

Caution To prevent ESD damage, handle switching modules by the carrier edges only.

Statement 1072

To remove a switching module from a Catalyst 4900M series switch, follow this procedure:

Step 1 Disconnect any network interface cables attached to the ports on the switching

module that you intend to remove.

Step 2 Loosen the captive installation screws. (See Figure 3-8.)

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3-17

Configurable Modules

Figure 3-8 Captive Installation Screws and Ejector Levers

Chapter 3 Installing the Switch

3-18

232517

1 Captive screw 2 Ejector lever

Step 3 Grasp the left and right ejector levers, and simultaneously pivot the levers

downward to release the switching module from the backplane connector.

Step 4 Grasp the front panel of the switching-module with one hand, and place your other

hand under the carrier to support and guide it out of the slot. Do not touch the printed circuit boards or connector pins.

Step 5 Carefully pull the switching module straight out of the slot, keeping your other

hand under the carrier to guide it.

Step 6 Place the switching module on an antistatic mat or antistatic foam, or immediately

install it in another slot.

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Chapter 3 Installing the Switch

Step 7 If the slot is to remain empty, install a switching-module filler plate.

Configurable Modules

Warning

Blank faceplates and cover panels serve three important functions: they prevent exposure to hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI) that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all cards, faceplates, front covers, and rear covers are in place.

Statement 1029

Installing Switching Modules

All Catalyst 4900M series supervisor engine modules and switching modules are installed in horizontal chassis slots that are numbered from top to bottom.

Warning

Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or view directly with optical instruments.

Statement 1051

Statement 1072

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Caution To prevent ESD damage, handle switching modules by the carrier edges only.

Cisco Catalyst 4900M Switch Installation Guide

3-19

Configurable Modules

Step 1 Take the necessary precautions to prevent ESD damage as described in Appendix

Step 2 Choose a slot for the new switching module. Ensure that you have enough

Step 3 Loosen the captive installation screws that secure the switching-module filler

Step 4 Remove the switching-module filler plate (or the existing switching module).

Step 5 To install the new switching module, grasp the switching-module front panel with

Chapter 3 Installing the Switch

To install a switching module in a Catalyst 4900M series switch, follow this procedure:

B and in Chapter 2.

clearance to accommodate any interface equipment that you will connect directly to the switching module ports.

plate (or the existing switching module) to the desired slot.

Save the switching-module filler plate for future use. If you are removing an existing switching module, see the

page 3-16.

one hand, and place your other hand under the carrier to support the switching module, as shown in

Figure 3-9. Do not touch the printed circuit boards or

connector pins.

“Removing Switching Modules” section on

3-20

Step 6 Align the edges of the circuit board with the slot guides on the sides of the switch

chassis, as shown in

Cisco Catalyst 4900M Switch Installation Guide

Figure 3-9.

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Chapter 3 Installing the Switch

Figure 3-9 Installing the Switching Module in the Chassis

Configurable Modules

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232516

1 Captive screw

Step 7 Carefully slide the switching module into the slot until both ejector levers engage

the chassis sides equally and the module is seated in the backplane.

Step 8 Use a screwdriver to tighten the captive installation screws on each end of the

switching module faceplate.

To check the status of the module, follow this procedure:

Step 1 Ensure that the STATUS LED is green (module operational).

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Chapter 3 Installing the Switch

Removing and Replacing the Power Supply

Step 2 When the switch is online, enter the show module command. Verify that the

system acknowledges the new module and that the module’s status is listed as good in the command output.

Step 3 If the module is not operational, reseat it. If the module is still not operational,

contact your customer service representative.

Removing and Replacing the Power Supply

This section describes how to remove and install the AC and DC-input power supplies. This information is presented in the following sections:

• Required Tools, page 3-23

• Removing a Power Supply, page 3-23

• Installing a Power Supply, page 3-24

3-22

Warning

Hazardous voltage or energy is present on the backplane when the system is operating. Use caution when servicing.

Statement 1034

Locate your power supply and notice the location of the captive installation screws.

Note The power supplies are hot-swappable, so in redundant mode you will not need to

power down the switch to replace most power supplies. In combined mode some slots may lose power during power supply replacement.

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Chapter 3 Installing the Switch

Required Tools

You will need a flathead or Phillips screwdriver to perform these procedures.

Removing a Power Supply

Follow these steps to remove a power supply:

Step 1 Set the power switch to the off (O) position. Step 2 Disconnect the power cord or cords from the power supply being removed. Step 3 Loosen the captive screws.

Caution Use both hands to remove a power supply.

Step 4 Grasp the power supply handles and pull the power supply out an inch to unseat

the backplane connections. Place one hand underneath to support the bottom of the power supply.

Removing and Replacing the Power Supply

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Step 5 Pull the power supply out of the bay and set it aside.

Warning

Step 6 If the power supply bay is to remain empty, install a blank power supply filler

Statement 1029

plate over the opening. Secure the filler plate with the two mounting screws and tighten them with a screwdriver.

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Removing and Replacing the Power Supply

Installing a Power Supply

Chapter 3 Installing the Switch

Warning

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

Statement 1019

Follow these steps to install a power supply:

Step 1 Make sure that the power supply you are installing is not connected to a power

source and that a power cord is not connected to the power supply.

Step 2 Loosen the two Phillips-head screws from the power supply filler plate (if a filler

plate is present).

Step 3 Remove the power supply filler plate (if one is present) and set it aside.

Caution Use both hands to grasp a power supply.

Step 4 Grasp a power supply handle with one hand. Place your other hand underneath to

support the bottom of the power supply.

Step 5 Slide the power supply almost all the way into the power supply bay. Press with

both thumbs evenly to correctly seat the power supply into the connections inside.

Step 6 Using a screwdriver, tighten the two captive installation screws on the front panel

of the power supply.

Step 7 Make sure the power supply power switch is in the off position (O). Step 8 Before you connect the power supply to a power source, ensure that all site power

and grounding requirements have been met.

Step 9 Plug the power cord or cords into the power supply.

3-24

Step 10 Connect the other end of the power cord to a power input source.

Caution In a system with multiple power supplies, connect each power supply to a separate

power source. In the event of a power source failure, if the second source is still available, it can maintain maximum overcurrent protection for each power connection.

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Chapter 3 Installing the Switch

Removing and Replacing the Fan Assembly

Step 11 Press the power switch to the on (|) position. Step 12 Verify power supply operation by checking the power supply’s front-panel LEDs.

You should see the following:

• The LED labeled INPUT OK is green.

• The LED labeled OUTPUT OK is green.

Step 13 Check the power supply and system status from the system console by entering

show power command. For more information on this command, refer to the command reference publication for your switch.

Step 14 If the LEDs or show power command output indicate a power problem or other

system problem, see information.

Chapter 4, “Troubleshooting the Installation,” for more

Removing and Replacing the Fan Assembly

This section describes how to remove and install the fan assembly.

Required Tools

You will need a Phillips screwdriver for the following two procedures.

Removing the Fan Assembly

Warning

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When removing the fan tray, keep your hands and fingers away from the spinning fan blades. Let the fan blades completely stop before you remove the fan tray.

Statement 258

Cisco Catalyst 4900M Switch Installation Guide

3-25

Removing and Replacing the Fan Assembly

Caution Never operate the system for an extended period if the fan assembly is removed

or if it is not functioning properly. An over-temperature condition can cause severe equipment damage.

Follow these steps to remove the existing fan assembly:

Step 1 Loosen the two captive installation screws on the fan assembly by turning them

counterclockwise.

Step 2 Grasp the fan assembly with both hands and pull it outward; gently move it side

to side if necessary to unseat it from the backplane. Slide it out of the chassis and place it in a safe place.

Installing the Fan Assembly

Follow these steps to install the new fan assembly:

Chapter 3 Installing the Switch

3-26

Step 1 Hold the fan assembly with the captive screws on the left. Step 2 Place the fan assembly into the fan assembly bay so it rests on the chassis, and

then lift the fan assembly up slightly, aligning the top and bottom guides.

Step 3 Slide the fan assembly into the chassis until the two captive installation screws

make contact with the chassis.

Step 4 Using a screwdriver, tighten the two captive installation screws by turning them

clockwise.

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Chapter 3 Installing the Switch

Verifying the Installation

Note To check the operation of the fans, you need to power up the chassis.

Follow these steps to verify that the new fan assembly was installed correctly:

Step 1 Listen for the fans; you should immediately hear them operating. If you do not

hear them, ensure that the fan assembly is inserted completely in the chassis and that the faceplate is flush with the switch back panel.

Step 2 The fan tray LED should light and be green. Step 3 If after several attempts the fans do not operate, or if you experience trouble with

the installation (for instance, if the captive installation screws do not align with the chassis holes), contact the Cisco TAC for assistance.

Removing and Replacing the Fan Assembly

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3-27

Removing and Replacing the Fan Assembly

Chapter 3 Installing the Switch

3-28

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CHAPTER

Troubleshooting the Installation

This chapter describes how to troubleshoot the Catalyst 4900M switch hardware installation and contains these sections:

• Getting Started, page 4-1

• Problem Solving to the System Component Level, page 4-2

• Identifying Startup Problems, page 4-2

• Troubleshooting the Power Supply, page 4-5

• Contacting Customer Service, page 4-6

If your system has problems starting up, use the information in this chapter to help isolate the cause. Problems with the initial startup are often caused by poor or improper connections. Although temperature conditions above the maximum acceptable level rarely occur at initial startup, environmental monitoring functions are included because they also monitor DC-line voltages.

Note For configuration questions or problems, refer to the software configuration guide

or the command reference publication to configure or enable the interfaces.

Getting Started

When the initial system boot is complete, verify the following:

• Power supplies are supplying power to the system.

• The system fan assembly is operating.

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Chapter 4 Troubleshooting the Installation

Problem Solving to the System Component Level

• System software boots successfully.

If all of these conditions are met and the hardware installation is complete, refer to the software configuration guide and the command reference publications to troubleshoot the software. However, if any of these conditions are not met, use the procedures in this chapter to isolate and, if possible, resolve the problem.

Problem Solving to the System Component Level

The key to success when troubleshooting the system is to isolate the problem to a specific system component. The first step is to compare what the system is doing to what it should be doing. Because a startup problem can usually be attributed to a single component, it is more efficient to isolate the problem to a subsystem rather than troubleshoot each separate component in the system.

The switch consists of the following subsystems:

• Power supply—Includes the power supply and power supply cooling. (See

the

“Troubleshooting the Power Supply” section on page 4-5.)

• Fan assembly system—The chassis fan assembly should operate whenever

system power is on. Usually, it continues to operate even when the environmental monitor shuts down the system because of an overtemperature or overvoltage condition. (It will shut down for a power supply shutdown.) You should be able to hear the fan assembly to determine whether or not it is operating. If the FAN LED is orange and you determine that the fan assembly is not operating, you should immediately contact a customer service representative. There are no installation adjustments that you can make if the fan assembly does not function properly at the initial startup.

Identifying Startup Problems

When you connect the power cords to the Catalyst 4900M switch, follow these steps:

Step 1 Flip the power switches to the on position (AC powered systems only). Step 2 Verify that power is available to the power supplied from the site AC or DC

source. Flip breakers and fuses if necessary.

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Chapter 4 Troubleshooting the Installation

Step 3 Listen for the system fan assembly. If you do not immediately hear the system fan

assembly begin to operate, see

page 4-5.

Step 4 If you determine that the power supplies are functioning normally and that the fan

assembly is faulty, contact a customer service representative. If the system fan assembly does not function properly at initial startup, there are no installation adjustments that you can make.

LED Readings

LEDs indicate all system states in the startup sequence. By checking the LEDs, you can determine when and where the system failed in the startup sequence. To check the LEDs, follow these steps:

Step 1 Compare the LED states to Tab le 4-1:

Identifying Startup Problems

“Troubleshooting the Power Supply” section on

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Identifying Startup Problems

Ta b l e 4-1 Power Supply LED Meanings

LED and Color Meaning

INPUT OK (AC)

Chapter 4 Troubleshooting the Installation

This LED should turn green immediately when power is applied to the supply and the power switch is set to ON.

Green

Red

Off

INPUT OK (DC)

Green

Red

Off

OUTPUT OK

Green

Red

AC input voltage is greater than 80.5 +/- 4.5 V AC.

In a dual power supply configuration (alternate unit powered) the AC input is less than 73 +/-3V, or the power supply is turned off.

In a single supply configuration, signals that AC input voltage is less than 73 +/-3V, or the power supply is turned off.

This LED should turn green immediately when power is applied to the supply.

DC input voltage is greater than -38.25 +/-2.25V.

In a dual power supply configuration (alternate unit powered) the DC input is less than 33 +/-3V, or the power supply is turned off.

In a single supply configuration, the LED shall be off to signal that DC input is less than 33 +/-3V, or the power supply is turned off.

DC output voltages are within the normal operating range.

Output voltages below the minimum or above the maximum will create an output fail alarm and cause the LED to illuminate red.

4-4

Step 2 Verify that the LEDs on the front panel are lit:

• The STATUS LED flashes yellow during diagnostic boot tests. It is green

when the switch is operational (online). If the system software is unable to start up, this LED stays orange.

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Chapter 4 Troubleshooting the Installation

• The port LEDs (1-48) are green when the module is operational (online). If

no signal is detected, the LINK LED is off. The port LED remains yellow if the port is disabled. The port LED flashes yellow if the port tested faulty at startup.

Step 3 If a STATUS LED is red, contact a customer service representative for

instructions.

Step 4 If the boot information and system banner are not displayed, verify that the

terminal is set correctly and that it is connected properly to the console port.

Troubleshooting the Power Supply

Follow these steps to help isolate a power subsystem problem:

Step 1 Verify that the power supply is plugged in and that the on/off switch is set to ON

(if the power supply is an AC supply).

Troubleshooting the Power Supply

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Step 2 Look at the power supply LED (PS1 or PS2). If the LED is off or if the LED is

red, unplug the power cord, and then plug the power cord in. Be sure the on/off switch is OFF before removing the power cord from the power supply.

Step 3 If the LED remains off, there might be a problem with the AC or DC source or the

power cable.

Step 4 Connect the power cord to another power source if one is available. Step 5 If the LED then lights, the problem is the first power source. Step 6 If the LED fails to light after you connect the power supply to a new power source,

replace the power cord.

Step 7 If the LED still fails to light when the switch is connected to a different power

source with a new power cord, the power supply is probably faulty.

If you are unable to resolve the problem, contact a customer service representative for instructions.

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Contacting Customer Service

If you are unable to solve a startup problem after using the troubleshooting suggestions in this chapter, contact a customer service representative for assistance and further instructions. Before you call, have the following information ready to help your service provider assist you as quickly as possible:

• Date you received the switch

• Chassis serial number (located on a label on the right of the rear of the

chassis, see

• Type of software and release number

• Maintenance agreement or warranty information

• Brief description of the problem

• Brief explanation of the steps you have already taken to isolate and resolve

the problem

Figure 4-1)

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Chapter 4 Troubleshooting the Installation

Figure 4-1 Serial Number Location

Contacting Customer Service

202519

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SN: XXXNNNNXXXX

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Contacting Customer Service

Chapter 4 Troubleshooting the Installation

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Specifications

This appendix provides cable and technical specifications for the Catalyst 4900M switches.

Console Port

The console port is an RJ-45 receptacle. The Request to Send (RTS) signal tracks the state of the Clear to Send (CTS) input.

Ta b l e A-1 Console Port Pinouts

Pin Signal Direction Description

1 RTS output request to send

2 DTR output data terminal ready

3 TXD output transmit data

4 GND — —

5 GND — —

6 RXD input receive data

7 DSR input data set ready

8 CTS input clear to send

APPENDIX

Table A-1 lists the console port pinouts.

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A-1

10/100/1000BASE-T Management Port

The 10/100/1000BASE-T management port is an RJ-45 receptacle with a Link Status LED.

Ta b l e A-2 10/100BASE-T Port Pinouts

Pin Signal Direction Description

1 RXDP input receive data

2 RXDN input receive data

3 TXDP output transmit data

4 unused — —

5 unused — —

6 TXDN output transmit data

7 unused — —

8 unused — —

Table A-2 lists the 10/100BASE-T port pinouts.

Appendix A Specifications

Catalyst 4900M Switch Specifications

Catalyst 4900M switch specifications are provided in Table A-3.

Ta b l e A-3 Catalyst 4900 Series Switch Specifications

Item Specification Environmental

Temperature ambient operating

Temperature ambient nonoperating and storage

Humidity (RH), ambient (noncondensing) operating

Humidity (RH), ambient (noncondensing) nonoperating and storage

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A-2

32°F (0°C) to 104°F (40°C)

–40 to 167°F (–40 to 75°C)

10% to 90%

5% to 95%

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Appendix A Specifications

Catalyst 4900M Switch Specifications

Table A-3 Catalyst 4900 Series Switch Specifications (continued)

Item Specification

Altitude operating and nonoperating

Switch heat dissipation

Switching Components

Memory 512-MB SDRAM, 128-MB Flash (onboard and fixed),

Physical Characteristics

Dimensions (H x W x D) 3.5 x 17.2 x 17.9 in. (8.9 x 43.7 x 45.5 cm)

Weight 34.0 lb (15.4 kg) for a system with two power supplies,

Airflow Left to right

AC Power

Power supply output 960 W

System power dissipation 240 W

AC-input 12 A maximum @ 100 VA C

AC frequency 50 to 60 Hz

Output current 80 A maximum

Inrush value 50 A for one cycle of AC

Output voltage 12 V

Input KVA rating 1.200 KVA

DC Power

Power supply output 960 W

System power dissipation 320 W

DC-input 27 A @ –48 VDC (Operating range –40.5 to –56 VDC)

Output current 80 A maximum

Inrush value Hot turn on (PSU on for > 1 hour) 75 A

–60 to 2000 m

723 BTU/hour

256

bytes serial EEROM

4.5 lb (2.1 kg) per power supply

5 A maximum @ 240 VA C

21.6 A @ –60 VDC (Operating range –55 to –72 VDC)

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Catalyst 4900M Switch Specifications

Table A-3 Catalyst 4900 Series Switch Specifications (continued)

Item Specification

Output voltage 12 V

Input KVA rating 1.296 KVA

Appendix A Specifications

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APPENDIX

Compliance Information and Translated Safety Warnings

Note Only trained and qualified service personnel (as defined in IEC 60950-1 and

AS/NZS 60950) should install, replace, or service the equipment. Install the system in accordance with the U.S. National Electric Code if you are in the United States.

This appendix contains the following sections:

• Regulatory Standards Compliance, page B-1

• European Directives, page B-4

• EMC Class A Notices and Warnings, page B-6

• Translated Safety Warnings, page B-11

Regulatory Standards Compliance

This section includes all standards. Catalyst 4900M switches are in compliance with national and international standards as described in

Regulatory Standards Compliance”, Tabl e B-2 “Industry EMC, Safety, and Environmental Standards”, and Tabl e B-3 “GR-1089 Installation and Caution Instructions”.

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Table B-1 “Class A

B-1

Regulatory Standards Compliance

Ta b l e B-1 Class A Regulatory Standards Compliance

Specification Standard

Regulatory Compliance Products with the CE Marking indicate

Safety UL 60950-1

EMC FCC Part 15 (CFR 47) Class A

Appendix B Compliance Information and Translated Safety Warnings

compliance with the 1999/5/EC directive, which includes the safety and EMC standards listed.

CAN/CSA-C22.2 No. 60950-1

EN 60950-1

IEC 60950-1

AS/NZS 60950-1

ICES-003 Class A

EN50082-1

CISPR22 Class A

AS/NZS CISPR22 Class A

VCCI Class A

EN55022 Class A

EN55024

EN61000-3-2

EN6100-3-3

EN61000-6-1

EN300 386

KN22 Class A

KN immunity series

CISPR24

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Appendix B Compliance Information and Translated Safety Warnings

Ta b l e B-2 Industry EMC, Safety, and Environmental Standards

Specification Standard

NEBS Criteria Levels SR-3580 Issue 3, June 2007

Verizon NEBS Compliance

Qwest NEBS Compliance

ATT NEBS requirements ATT TP76200 level 3 and TCG Checklist

ETSI ETS 300 019-2-1, Class 1.1 Storage

Ta b l e B-3 GR-1089 Installation and Caution Instructions

Shielded cable grounded at both ends specified for copper telecom ports.

Telecommunications Carrier Group (TCG) Checklist

TCG Checklist

ETS 300 019-2-2, Class 2.1 and 2.2 Transportation ETS 300 019-2-3, Class 3.1E Stationary Use

Regulatory Standards Compliance

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Caution The intra-building port(s) of the equipment or subassembly is suitable

for connection to intra-building or unexposed wiring or cabling only. The intra-building port(s) of the equipment or subassembly must not be metallically connected to interfaces which connect to the OSP or its wiring. These interfaces are designed for use as intra-building interfaces only (Type 2 or Type 4 ports as described in GR-1089-CORE, Issue 4) and require isolation from the exposed OSP cabling. The addition of primary protectors is not sufficient protection in order to connect these interfaces metallically to OSP wiring.

The Catalyst 4900M Series Switches have AC power ports that are intended for deployments where an external Surge Protective Device (SPD) is utilized at the AC power service equipment (see definition in National Electric Code).

The Catalyst 4900M Series Switches are designed for a Common Bonding Network (CBN) installation.

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European Directives

Appendix B Compliance Information and Translated Safety Warnings

Table B-3 GR-1089 Installation and Caution Instructions (continued)

The Catalyst 4900 Series Switches can be installed in network telecommunication facilities or locations where the National Electric Code applies.

An electrical conducting path shall exist between the product chassis and the metal surface of the enclosure or rack in which it is mounted or to a grounding conductor. Electrical continuity shall be provided by using thread-forming type mounting screws that remove any paint or nonconductive coatings and establish a metal-to-metal contact. Any paint or other nonconductive coatings shall be removed on the surfaces between the mounting hardware and the enclosure or rack. The surfaces shall be cleaned and an antioxidant applied before installation.

The DC return connection to this system should remain Isolated from the system frame and chassis (DC-I).

The nominal DC operating voltage is –48 VDC.

European Directives

Statement 275—Declaration of Conformity with Regard to the Directives 73/23/EEC and 89/336/EEC as amended by Directive 93/68/EEC

For specifics about which standards have been applied, refer to the Declaration of Conformity.

English:

Dansk:

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This equipment is in compliance with the essential requirements and other provisions of Directives 73/23/EEC and 89/336/EEC as amended by Directive 93/68/EEC.

Dette udstyr er i overensstemmelse med de ufravigelige hensyn og andre bestemmelser i direktiv 73/23/EEC og 89/336/EEC som ændred i direktiv 93/68/EEC.

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Appendix B Compliance Information and Translated Safety Warnings

European Directives

Deutsch:

Español:

Français:

Íslenska:

Italiano:

Nederlands:

Dieses Gerät entspricht den wesentlichen Anforderungen und weiteren Bestimmungen der Richtlinien 73/23/EWG und 89/336/EWG mit der Ergänzung durch Richtlinie 93/68/EWG.

Este equipo cumple con los requisitos esenciales y otras disposiciones de las Directrices 73/23/EEC y 89/336/EEC de acuerdo a las modificaciones de la Directriz 93/68/EEC.

Cet appareil remplit les principales conditions requises et autres dispositions des Directives 73/23/EEC et 89/336/EEC, modifiées par la Directive 93/68/EEC.

Þessir búnaður samrýmist lögboðnum kröfum og öðrum ákvæðum tilskipana 73/23/EBE og 89/336/EBE, með breytingum skv. tilskipun 93/68/EBE.

Questa apparecchiatura è conforme ai requisiti essenziali e altre disposizioni delle Direttive 73/23/EEC e 89/336/EEC modificate con la Direttiva 93/68/EEC.

Deze apparatuur voldoet aan de belangrijkste eisen en andere voorzieningen van richtlijnen 73/23/EEC en 89/336/EEC zoals gewijzigd door richtlijn 93/68/EEC.

Português:

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Norsk:

Dette utstyret samsvarer med de vesentligste kravene og andre regler i direktivene 73/23/EEC og 89/336/EEC samt i tilleggsdirektiv 93/68/EEC.

Este equipamento satisfaz os requisitos essenciais e outras provisões das Directivas 73/23/EEC e 89/336/EEC, conforme amendados pela Directiva 93/68/EEC.

Catalyst 4948 and Catalyst 4900M switches

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EMC Class A Notices and Warnings

Appendix B Compliance Information and Translated Safety Warnings

Suomalainen:

Svenska:

Tämä laite on direktiivien 73/23/ETY ja 89/336/ETY (kuten muutettu direktiivissä 93/68/ETY) keskeisten vaatimusten ja määräysten mukainen.

Denna utrustning uppfyller de väsentliga kraven och andra villkor i direktiven 73/23/EEC och 89/336/EEC enligt ändringarna i direktiv 93/68/EEC.

EMC Class A Notices and Warnings

This section includes the EMC Class A warnings for the Catalyst 4900M switches.

Class A Notice for FCC

Modifying the equipment without Cisco’s authorization may result in the equipment no longer complying with FCC requirements for Class A digital devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television communications at your own expense.

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case users will be required to correct the interference at their own expense.

Class A Notice for Canada

This Class A digital apparatus complies with Canadian ICES-003.

Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.

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Appendix B Compliance Information and Translated Safety Warnings

EMC Class A Notices and Warnings

Statement 340—Class A Warning for CISPR22

Warning

Waarschuwing

Varoitus

Attention

Warnung

Avvertenza

Advarsel

This is a class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

Dit is een product van klasse A. In een woonomgeving kan dit product radiostoring veroorzaken. In dat geval moet de gebruiker de juiste maatregelen nemen.

Tämä on A-luokan tuote. Kotona käytettynä tämä tuote voi aiheuttaa radiotaajuushäiriöitä, jolloin käyttäjän tulisi ryhtyä vaadittaviin toimenpiteisiin häiriöiden ehkäisemiseksi.

Il s'agit d'un produit de classe A. Dans un environnement local, ce produit peut entraîner des perturbations radioélectriques, auquel cas l'utilisateur devra éventuellement prendre des mesures adéquates.

Dies ist ein Produkt der Klasse A. Bei der Verwendung dieses Produkts im Haus- oder Wohnungsbereich kann es zu Funkstörungen kommen. In diesem Fall muss der Benutzer u. U. angemessene Maßnahmen ergreifen.

Prodotto di classe A. È possibile che il prodotto generi interferenze radio in un ambienti chiusi. In questo caso l'utente deve intraprendere le misure adeguate per risolvere il problema.

Dette er et produkt i klasse A. I et hjemmemiljø kan dette produktet forårsake radioforstyrrelser, og brukeren kan da være nødt til å ta de nødvendige forholdsregler.

Statement 340

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Aviso

Este é um produto de classe A. Em um ambiente doméstico, este produto pode causar interferência de rádio. Nesse caso, talvez o usuário precise tomar as medidas adequadas.

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EMC Class A Notices and Warnings

Appendix B Compliance Information and Translated Safety Warnings

¡Advertencia!

Varning!

Este es un producto de clase A. En el ámbito doméstico, este producto puede causar radiointerferencias, lo que puede hacer necesaria la puesta en marcha de medidas adecuadas.

Detta är en klass A-produkt. Denna produkt kan orsaka radiostörningar inomhus. Det kan då vara ett krav att användaren vidtar lämpliga åtgärder.

B-8

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Appendix B Compliance Information and Translated Safety Warnings

EMC Class A Notices and Warnings

Statement 191—VCCI Class A Warning for Japan

Warning

This is a Class A product based on the standard of the Voluntary Control Council for Interference by Information Technology Equipment (VCCI). If this equipment is used in a domestic environment, radio disturbance may arise. When such trouble occurs, the user may be required to take corrective actions.

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Appendix B Compliance Information and Translated Safety Warnings

EMC Class A Notices and Warnings

Statement 256—Class A Warning for Hungary

Warning

This equipment is a class A product and should be used and installed properly according to the Hungarian EMC Class A requirements (MSZEN55022). Class A equipment is designed for typical commercial establishments for which special conditions of installation and protection distance are used.

Statement 294—Class A Warning for Korea

Warning

This is a Class A Device and is registered for EMC requirements for industrial use. The seller or buyer should be aware of this. If this type was sold or purchased by mistake, it should be replaced with a residential-use type.

B-10

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Appendix B Compliance Information and Translated Safety Warnings

Translated Safety Warnings

Statement 257—Class A Notice for Taiwan and Other Traditional Chinese Markets

Warning

This is a Class A Information Product, when used in residential environment, it may cause radio frequency interference, under such circumstances, the user may be requested to take appropriate countermeasures.

Statement 371—Power Cable and AC Adapter

Translated Safety Warnings

This section repeats in multiple languages the warnings in this guide.

Statement 257

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Appendix B Compliance Information and Translated Safety Warnings

Translated Safety Warnings

Statement 258—Fan Tray Removal Warning

Warning

Waarschuwing

Varoitus

Attention

Warnung

Avvertenza

When removing the fan tray, keep your hands and fingers away from the spinning fan blades. Let the fan blades completely stop before you remove the fan tray.

Houd tijdens het verwijderen van de ventilator de handen en vingers uit de buurt van de draaiende ventilatorschoepen. Laat de ventilatorschoepen volledig tot stilstand komen alvorens de ventilator te verwijderen.

Pidä kädet ja sormet pois tuulettimen pyörivistä siivistä tuuletinalustaa poistaessasi. Anna tuulettimen siipien pysähtyä kokonaan ennen kuin irrotat tuuletinalustan.

Lors du retrait du plateau du ventilateur, veillez à ce que vos mains et doigts restent à l’écart des pales en rotation du ventilateur. Attendez que les pales du ventilateur soient parvenues à une immobilité complète avant de retirer le plateau du ventilateur.

Beim Herausnehmen des Lüfterkastens Hände und Finger von den sich drehenden Gebläseflügeln fern halten. Vor Herausnehmen des Gebläsekastens warten, bis die Gebläseflügel völlig zum Stillstand gekommen sind.

Quando si toglie il vano della ventola, fare attenzione che le mani e le dita non vengano in contatto con la ventola in movimento. Attendere che la ventola si fermi completamente prima di togliere il vano.

Statement 258

B-12

Advarsel

Aviso

Cisco Catalyst 4900M Switch Installation Guide

Når du fjerner viftedekselet, hold hender og fingre borte fra de roterende viftebladene. La viftebladene stanse helt før du fjerner viftedekselet.

Mantenha as suas mãos e dedos afastados das lâminas em movimento da ventoinha, ao retirar a respectiva bandeja. Deixe as lâminas da ventoinha parar completamente antes de retirar a bandeja.

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Appendix B Compliance Information and Translated Safety Warnings

Translated Safety Warnings

¡Advertencia!

Varning!

Cuando quite la bandeja del abanico, mantenga las manos y los dedos alejados de las aspas en movimiento. Deje que las aspas se detengan completamente antes de quitar la bandeja del abanico.

Håll händer och fingrar borta från de roterande fläktbladen när du tar av fläktskyddet. Låt fläkten stanna helt innan du tar av fläktskyddet.

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Appendix B Compliance Information and Translated Safety Warnings

Translated Safety Warnings

Statement 1003—DC Power Disconnection

Warning

Waarschuwing

Varoitus

Attention

Warnung

Avvertenza

Advarsel

Aviso

Before performing any of the following procedures, ensure that power is removed from the DC

circuit.

Statement 1003

Voordat u een van de onderstaande procedures uitvoert, dient u te controleren of de stroom naar het gelijkstroom circuit uitgeschakeld is.

Varmista, että tasavirtapiirissä ei ole virtaa ennen seuraavien toimenpiteiden suorittamista.

Avant de pratiquer l'une quelconque des procédures ci-dessous, vérifier que le circuit en courant continu n'est plus sous tension.

Vor Ausführung der folgenden Vorgänge ist sicherzustellen, daß die Gleichstromschaltung keinen

Strom erhält.

Prima di svolgere una qualsiasi delle procedure seguenti, verificare che il circuito CC non sia

alimentato.

Før noen av disse prosedyrene utføres, kontroller at strømmen er frakoblet likestrømkretsen.

Antes de executar um dos seguintes procedimentos, certifique-se que desligou a fonte de alimentação de energia do circuito de corrente contínua.

¡Advertencia!

B-14

Antes de proceder con los siguientes pasos, comprobar que la alimentación del circuito de corriente continua (CC) esté cortada (OFF).

Varning!

Innan du utför någon av följande procedurer måste du kontrollera att strömförsörjningen till likströmskretsen är bruten.

Aviso

Antes de executar qualquer um dos procedimentos a seguir, verifique se a energia foi removida do circuito DC.

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Appendix B Compliance Information and Translated Safety Warnings

Translated Safety Warnings

Advarsel

Før du udfører nogen af følgende procedurer, skal du sikre dig, at der ikke er strøm til jævnstrømskredsløbet.

Statement 1004—Installation Instructions

Warning

Waarschuwing

Varoitus

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Read the installation instructions before connecting the system to the power source.

Raadpleeg de installatie-instructies voordat u het systeem op de voedingsbron aansluit.

Lue asennusohjeet ennen järjestelmän yhdistämistä virtalähteeseen.

Statement 1004

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Translated Safety Warnings

Appendix B Compliance Information and Translated Safety Warnings

Attention

Warnung

Avvertenza

Advarsel

Aviso

¡Advertencia!

Varning!

Avant de brancher le système sur la source d'alimentation, consulter les directives d'installation.

Vor dem Anschließen des Systems an die Stromquelle die Installationsanweisungen lesen.

Consultare le istruzioni di installazione prima di collegare il sistema all'alimentatore.

Les installasjonsinstruksjonene før systemet kobles til strømkilden.

Leia as instruções de instalação antes de ligar o sistema à fonte de energia.

Lea las instrucciones de instalación antes de conectar el sistema a la red de alimentación.

Läs installationsanvisningarna innan du kopplar systemet till strömförsörjningsenheten.

B-16

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Cisco Systems 4900M User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Cisco Catalyst 4900M Switch Installation Guide

CONTENTS

Preface

Product Overview

Catalyst 4900M Switch Applications

Catalyst 4900M Switch Software Features

Hardware System Features

Switch Components

Traffic Ports

TwinGig Modules

Rear Chassis Connections and Features

Front Panel LEDs

Chassis Cooling

Power Supplies

Environmental Monitoring of the Power Supplies

Power Management for the Catalyst 4900M Switch

Power Management Modes

Serial Number Location

Site Planning

Site Environmental Requirements

Site Power Requirements

Preinstallation Requirements

Warnings and Cautions

Grounding Requirements

EMI Recommendations

Power Requirements and Heat Dissipation

Safety Overview

Ensuring Safety

Working Safely with Electricity

Preventing Electrostatic Discharge Damage

Site Planning Checklist

Installing the Switch

Checking the Contents

Rack-Mounting the Switch

Rack-Mounting Guidelines

Lifting the Chassis Safely

Required Installation Tools

Rack-Mounting the Catalyst 4900M Switch

Connecting Power to the Catalyst 4900M Switch

Connecting DC Power to the Catalyst 4900M Switch

Optical Connections

Configurable Modules

Required Tools

Removing Switching Modules

Installing Switching Modules

Removing and Replacing the Power Supply

Required Tools

Removing a Power Supply

Installing a Power Supply

Removing and Replacing the Fan Assembly

Required Tools

Removing the Fan Assembly

Installing the Fan Assembly

Verifying the Installation

Troubleshooting the Installation

Getting Started

Problem Solving to the System Component Level

Identifying Startup Problems

LED Readings

Troubleshooting the Power Supply

Contacting Customer Service

Specifications

Console Port

10/100/1000BASE-T Management Port

Catalyst 4900M Switch Specifications

Compliance Information and Translated Safety Warnings

Regulatory Standards Compliance

European Directives

EMC Class A Notices and Warnings

Class A Notice for FCC

Class A Notice for Canada

Translated Safety Warnings