Cisco_Systems_Computer_Hardware

THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT

SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE

OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.

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.

The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB???s public domain version of the UNIX operating system. All rights reserved. Copyright ?? 1981, Regents of the University of California.

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Catalyst 2960 Switch Hardware Installation Guide

Preface

Audience

This guide is for the networking or computer technician responsible for installing the

Catalyst 2960 switch, hereafter known as the switch. We assume that you are familiar with the concepts and terminology of Ethernet and local area networking. If you are interested in more training and education in these areas, learning opportunities including training courses, self-study options, seminars, and career certifications programs are available on the Cisco Training & Events web page:

http://www.cisco.com/web/learning/index.html

Purpose

This guide describes the hardware features of the Catalyst 2960 switch. It describes the physical and performance characteristics of the switch, explains how to install it, and provides troubleshooting information.

This guide does not describe system messages that you might receive or how to configure your switch. For more information, see the switch software configuration guide, the switch command reference, and the switch system message guide on the Cisco.com Product Documentation home page. For information about the standard Cisco IOS Release 12.1 or 12.2 commands, see the Cisco IOS documentation set from the Cisco.com home page by choosing Support > Documentation > Product and Support Documentation/Cisco IOS Software.

Conventions

This document uses these conventions and symbols for notes, cautions, and warnings:

Note Means reader take note. Notes contain helpful suggestions or references to materials not contained in this manual.

Caution Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data.

Catalyst 2960 Switch Hardware Installation Guide

Preface

Warning IMPORTANT SAFETY INSTRUCTIONS

This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device. Statement 1071

SAVE THESE INSTRUCTIONS

The safety warnings for this product are translated into several languages in the Regulatory Compliance and Safety Information for the Catalyst 2960 Switch that ships with the product. The EMC regulatory statements are also included in that guide.

Related Documentation

These documents provide complete information about the switch and are available from this

Cisco.com site:

http://www.cisco.com/en/US/products/ps6406/tsd_products_support_series_home.html

???Release Notes for the Catalyst 3750, 3560, 2970, and 2960 Switches

Note Before installing, configuring, or upgrading the switch, refer to the release notes on Cisco.com for the latest information.

???Catalyst 2960 Switch Software Configuration Guide

???Catalyst 2960 Switch Command Reference

???Catalyst 3750, 3560, 3550, 2970, and 2960 Switch System Message Guide

???Device manager online help (available on the switch)

???Cisco Network Assistant online help (available on the switch)

???Catalyst 2960 Switches Getting Started Guide (8-Port Switches)

???Catalyst 2960 Switch Getting Started Guide. This guide is for the 24- and 48-port switches and provides information in these languages: English, Chinese (Simplified), French, German, Italian, Japanese, and Spanish

???Regulatory Compliance and Safety Information for the Catalyst 2960 Switch

For information about related products, see these documents:

???Getting Started with Cisco Network Assistant (not orderable but available on Cisco.com)

???Release Notes for Cisco Network Assistant (not orderable but available on Cisco.com)

???Cisco Small Form-Factor Pluggable Modules Installation Notes (order number DOC-7815160=)

???Cisco CWDM GBIC and CWDM SFP Installation Note (not orderable but available on Cisco.com)

Catalyst 2960 Switch Hardware Installation Guide

Preface

???Cisco Redundant Power System 2300 Hardware Installation Guide (order number DOC-7817647=)

???Cisco RPS 675 Redundant Power System Hardware Installation Guide (order number DOC-7817647=)

These compatibility matrix documents are available from this Cisco.com site: http://www.cisco.com/en/US/products/hw/modules/ps5455/products_device_support_tables_list.html

???Cisco Gigabit Ethernet Transceiver Modules Compatibility Matrix

???Cisco 100-Megabit Ethernet SFP Modules Compatibility Matrix

???Cisco CWDM SFP Transceiver Compatibility Matrix

???Cisco Small Form-Factor Pluggable Modules Compatibility Matrix

???Compatibility Matrix for 1000BASE-T Small Form-Factor Pluggable Modules

???Cisco Redundant Power System 2300 Compatibility Matrix

Obtaining Documentation, Obtaining Support, and Security

Guidelines

For information on obtaining documentation, obtaining support, providing documentation feedback, security guidelines, and also recommended aliases and general Cisco documents, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at this URL:

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

Catalyst 2960 Switch Hardware Installation Guide

C H A P T E R 1

Product Overview

The Catalyst 2960 switch???also referred to as the switch???is an Ethernet switch to which you can connect devices such as workstations, Cisco Wireless Access Points, Cisco IP Phones, and other network devices including servers, routers, and other switches. This chapter provides a functional overview of the Catalyst 2960 switch. These topics are included:

???Features, page 1-1

???Front Panel Description, page 1-3

???Rear Panel Description, page 1-17

???Management Options, page 1-20

Features

You can deploy the 24- and 48-port Catalyst 2960 switches as backbone switches, aggregating 10BASE-T, 100BASE-TX, and 1000BASE-T Ethernet traffic from other network devices. The 8-port Catalyst 2960 compact switches provide the same Ethernet connectivity, but you can deploy these switches outside of the traditional wiring closet environment, such as in office workspaces and classrooms. See the switch software configuration guide for deployment examples.

Table 1-1 describes the switch model features.

Chapter 1 Product Overview

Features

The Catalyst 2960-8TC-L, Catalyst 2960G-8TC-L, and Catalyst 2960PD-8TT-L switches are smaller than the other Catalyst 2960 switches. They can be mounted with a magnet, have security lock slots, and do not have a fan. See Chapter 3, ???Switch Installation (8-Port Switches),??? for more information.

The Catalyst 2960-24PC-L and Catalyst 2960-24LT-L PoE switches comply with Cisco prestandard PoE and IEEE 802.3af.

The switches support these SFP modules:

???1000BASE-CWDM

???1000BASE-BX

???1000BASE-LX/LH

???1000BASE-SX

???1000BASE-T

???1000BASE-ZX

???100BASE-BX

???100BASE-FX

???100BASE-LX

The Catalyst 2960-24TC-S and Catalyst 2960-48TC-S switches support only 1000BASE-LX/LH, 1000BASE-SX, and 100BASE-FX SFP modules.

For specific information about which SFP modules are supported on specific switches, see the Cisco Gigabit Ethernet Transceiver Modules Compatibility Matrix at this Cisco.com URL:

http://www.cisco.com/en/US/docs/interfaces_modules/transceiver_modules/compatibility/matrix/ OL_6981.html

The 1000BASE-T SFP modules can operate at 10, 100, or 1000 Mb/s in full-duplex mode or at

10 or 100 Mb/s in half-duplex mode when you install them in Catalyst 2960 switches. The 10/100 and 10/100/1000 ports autonegotiate speed and support full-duplex or half-duplex mode.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 1 Product Overview

Front Panel Description

The Catalyst 2960-8TC-L and Catalyst 2960G-8TC-L switches do not support the 1000BASE-T or GLC-GE-100FX SFP modules.

Some Catalyst 2960 switches have a redundant power system (RPS) connector for an optional Cisco RPS 2300 or Cisco RPS 675 redundant power system that operates on AC input and supplies backup DC power to the switch. See the compatibility matrix documents for the RPS systems on Cisco.com for more information about switch support for the RPS models.

These models do not have an RPS connector:

???Catalyst 2960-8TC-L

???Catalyst 2960G-8TC-L

???Catalyst 2960PD-8TT-L

???Catalyst 2960-24-S

???Catalyst 2960-24TC-S

???Catalyst 2960-48TC-S

Front Panel Description

These sections describe the switch front panels:

???Catalyst 2960 Switch 24- and 48-Port Switches, page 1-3

???Catalyst 2960 Switch 8-Port Switches, page 1-7

???10/100 Ports, page 1-8

???10/100/1000 Ports, page 1-9

???PoE Ports, page 1-9

???SFP Module Slots, page 1-10

???Dual-Purpose Port, page 1-11

???Power Input Port (Catalyst 2960PD-8TT-L Switch), page 1-11

???LEDs, page 1-12

???Cable Guard for the Catalyst 2960-8TC-L, 2960G-8TC-L, and 2960PD-8TT-L Switches, page 1-17

Catalyst 2960 Switch 24- and 48-Port Switches

These sections describe the Catalyst 2960 24- and 48-port switches:

???Catalyst 2960-24-S, 2960-24TC-S, and 2960-48TC-S Switches, page 1-4

???Catalyst 2960-24PC-L 2960-24TC-L, 2960-48TC-L, 2960 -24LT-L, 2960-24TT-L, and 2960-48TT-L Switches, page 1-5

???Catalyst 2960G-24TC-L and Catalyst 2960G-48TC-L Switches, page 1-6

Catalyst 2960 Switch Hardware Installation Guide

Chapter 1 Product Overview

Front Panel Description

Catalyst 2960-24-S, 2960-24TC-S, and 2960-48TC-S Switches

The 10/100 ports on the Catalyst 2960-24-S switch are numbered as follows: The first member of the pair (port 1) is above the second member (port 2), port 3 is above port 4, and so on. See Figure 1-1.

Figure 1-1 Catalyst 2960-24-S Switch Front Panel

SYST

STAT

DUPLX

SPEED

MODE

191917

1 10/100 ports

The 10/100 ports on the Catalyst 2960-24TC-S and Catalyst 2960-48TC-S switches are numbered in the same way as the Catalyst 2960-24T-S switch. These switches have dual-purpose ports, that is, 10/100/1000 ports 1 and 2 can use either the SFP module or the RJ-45 connector for that port, but not both at the same time. Use the software to set the connector type for these ports. For more information about the dual-purpose port, see the ???Dual-Purpose Port??? section on page 1-11. See Figure 1-2 and Figure 1-3.

Figure 1-2 Catalyst 2960-24TC-S Switch Front Panel

SYST

STAT

DUPLX

SPEED

MODE

191916

1 10/100 ports 2 Dual-purpose ports

Figure 1-3 Catalyst 2960-48TC-S Switch Front Panel

SYST

STAT

DUPLX

SPEED

MODE

191915

1 10/100 ports 2 Dual-purpose ports

Catalyst 2960 Switch Hardware Installation Guide

Chapter 1 Product Overview

Front Panel Description

Catalyst 2960-24PC-L 2960-24TC-L, 2960-48TC-L, 2960 -24LT-L, 2960-24TT-L, and

2960-48TT-L Switches

The 10/100 ports on the Catalyst 2960-24PC-L, 2960-24TC-L, 2960-48TC-L, 2960-24LT-L, 2960-24TT-L, and 2960-48TT-L switches are grouped in pairs. The first member of the pair (port 1) is above the second member (port 2), port 3 is above port 4, and so on.

The 24 Catalyst 2960-24PC-L switch 10/100 ports are PoE ports. See Figure 1-4.

Figure 1-4

SYST

RPS

STAT

DUPLX

SPEED

PoE

MODE

Catalyst 2960-24PC-L Switch Front Panel

1 10/100 PoE ports 2 Dual-purpose ports

The Catalyst 2960-24TC-L and Catalyst 2960-48TC-L switches have dual-purpose ports, that is, 10/100/1000 ports 1 and 2 can use either the SFP module or the RJ-45 connector for that port, but not both. Use the software to set the connector type for these ports. For more information about the dual-purpose port, see the ???Dual-Purpose Port??? section on page 1-11. See Figure 1-5 and Figure 1-6.

Figure 1-5 Catalyst 2960-24TC-L Switch Front Panel

Figure 1-6 Catalyst 2960-48TC-L Switch Front Panel

137064

SYST

RPS

STAT

DUPLX

SPEED

MODE

1 10/100 ports 2 Dual-purpose ports

137066

Catalyst 2960 Switch Hardware Installation Guide

Chapter 1 Product Overview

Front Panel Description

The Catalyst 2960-24LT-L, Catalyst 2960-24TT-L, and Catalyst 2960-48TT-L switches have two 10/100/1000 uplink ports, numbered 1 and 2. Ports 1 to 8 on the Catalyst 2960-24LT-L switch are PoE ports. See Figure 1-7, Figure 1-8, and Figure 1-9.

2 10/100 ports

270103

Figure 1-8 Catalyst 2960-24TT-L Switch Front Panel

SYST

RPS

STAT

DUPLX

SPEED

MODE

1 10/100 ports 2 10/100/1000 uplink ports

Figure 1-9 Catalyst 2960-48TT-L Switch Front Panel

137065

SYST

RPS

STAT

DUPLX

SPEED

MODE

1 10/100 ports 2 10/100/1000 uplink ports

137067

Catalyst 2960G-24TC-L and Catalyst 2960G-48TC-L Switches

The 10/100/1000 ports on the Catalyst 2960G-24TC-L and Catalyst 2960G-48TC-L switches are grouped in pairs. The first member of the pair (port 1) is above the second member (port 2), port 3 is above port 4, and so on. The SFP module slots are numbered 21 to 24 on the Catalyst 2960G-24TC-L switch and 45 to 48 on the Catalyst 2960G-48TC-L switch. See Figure 1-10 and Figure 1-11.

The Catalyst 2960G-24TC-L and Catalyst 2960G-48TC-L switches have dual-purpose ports, meaning ports 21 to 24 or 45 to 48 can use either the SFP module or the RJ-45 connector for that port, but not both. Use the software to set the connector type for these ports. For more information about the dual-purpose port, see the ???Dual-Purpose Port??? section on page 1-11.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 1 Product Overview

Front Panel Description

Figure 1-10 Catalyst 2960G-24TC-L Switch Front Panel

SYST

RPS

STAT

DUPLX

SPEED

MODE

1 10/100/1000 ports 2 Dual-purpose ports

137068

Figure 1-11 Catalyst 2960G-48TC-L Switch Front Panel

137069

Catalyst 2960 Switch 8-Port Switches

These sections describe the Catalyst 2960 8-port switches:

???Catalyst 2960PD-8TT-L Switch, page 1-7

???Catalyst 2960-8TC-L Catalyst 2960G-8TC -L Switches, page 1-8

Catalyst 2960PD-8TT-L Switch

The Catalyst 2960PD-8TT-L (Figure 1-12) switch front panel has a console port, eight 10/100 ports, and a 10/100/1000 uplink port that can receive power from an upstream PoE switch. The switch can also receive power from an AC power adapter that is connected through the rear panel.

Figure 1-12 Catalyst 2960PD-8TT-L Switch Front Panel

Catalyst 2960 Series

270104

Catalyst 2960 Switch Hardware Installation Guide

Chapter 1 Product Overview

Front Panel Description

Catalyst 2960-8TC-L Catalyst 2960G-8TC -L Switches

The console ports for the Catalyst 2960-8TC-L and Catalyst 2960G-8TC-L switches (Figure 1-13 and Figure 1-14) are on the front panels. The switches also have a dual-purpose port that can use either an RJ-45 connector or an SFP module, but not both. Use the software to set the connector type for these ports.

For more information on the dual-purpose port, see the ???Dual-Purpose Port??? section on page 1-11. For more information on the console port, see the ???Console Port??? section on page 1-19.

Figure 1-13 Catalyst 2960-8TC-L Switch Front Panel

Catalyst 2960 Series

STAT

DPLX

2 10/100/1000 ports

10/100 Ports

You can set the 10/100 ports to operate at 10 or 100 Mb/s in full-duplex or half-duplex mode. You can also set these ports for speed and duplex autonegotiation. The default setting is autonegotiate. When the port is set to autonegotiate, it senses the speed and duplex settings of the attached device and advertises its own capabilities. If the connected device also supports autonegotiation, the switch port negotiates the best connection (that is, the fastest line speed that both devices support and full-duplex transmission if the attached device supports it) and configures itself accordingly. In all cases, the attached device must be within 328 feet (100 meters).

100BASE-TX traffic requires a Category 5 or higher cable. 10BASE-T traffic can use Category 3 or Category 4 cables.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 1 Product Overview

Front Panel Description

You can use the mdix auto interface configuration command in the command-line interface (CLI) to enable the auto-MDIX feature. When the auto-MDIX feature is enabled, the switch detects the required cable type for copper Ethernet connections and configures the interfaces accordingly. Therefore, you can use either a crossover or a straight-through cable for connections to a copper 10/100/1000 or 1000BASE-T SFP module port on the switch, regardless of the type of device on the other end of the connection. For configuration information for this feature, see the switch software configuration guide or the switch command reference.

10/100/1000 Ports

You can set the 10/100/1000 ports to operate at 10, 100, or 1000 Mb/s in full-duplex or half-duplex mode. You can also set these ports for speed and duplex autonegotiation. (The default setting is autonegotiate.) When you set the port for autonegotiation, it senses the speed and duplex settings of the attached device and advertises its own capabilities. If the connected device also supports autonegotiation, the switch port negotiates the best connection (that is, the fastest line speed that both devices support and full-duplex transmission if the attached device supports it) and configures itself accordingly. In all cases, the attached device must be within 328 feet (100 meters).

100BASE-TX and 1000BASE-T traffic requires a Category 5 or higher cable. 10BASE-T traffic can use Category 3 or Category 4 cables.

When you connect the switch to workstations, servers, routers, and Cisco IP Phones, be sure that the cable is a straight-through cable. When you connect the switch to switches or hubs, use a crossover cable. When using a straight-through or crossover cable for 1000BASE-T connections, be sure to use a twisted four-pair, Category 5 or higher cable for proper operation. Pinouts for the cables are described in Appendix A, ???Connector and Cable Specifications.???

You can use the mdix auto interface configuration command in the CLI to enable the automatic medium-dependent interface crossover (auto-MDIX) feature. When the auto-MDIX feature is enabled, the switch detects the required cable type for copper Ethernet connections and configures the interfaces accordingly. Therefore, you can use either a crossover or a straight-through cable for connections to a copper 10/100/1000 or 1000BASE-T SFP module port on the switch, regardless of the type of device on the other end of the connection. For configuration information for this feature, see the switch software configuration guide or the switch command reference.

PoE Ports

This section applies only to the Catalyst 2960-24PC-L and Catalyst 2960 24LT-L switches.

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. Statement 1072

The 10/100 ports on the Catalyst 2960-24PC-L and ports 1 to 8 of the 10/100 ports on the

Catalyst 2960-24LT-L switches provide PoE support for devices that are compliant with IEEE 802.3af. The Cisco prestandard PoE is also supported for Cisco IP Phones and Cisco Aironet Access Points.

Each of the Catalyst 2960-24PC-L switch 10/100 ports and ports 1 to 8 on the Catalyst 2960-24LT-L switch deliver 15.4 W of PoE.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 1 Product Overview

Front Panel Description

On a per-port basis, you can control whether Catalyst 2960 PoE port automatically provides power when you connect an IP phone or an access point. The device manager, Network Assistant, and the CLI provide two PoE settings for each 10/100 PoE port: Auto and Never.

When you select the Auto setting, the port provides power only if a valid powered device, such as an IEEE 802.3af-compliant powered device, a Cisco pre-standard IP phone, or a Cisco pre-standard Cisco access point, is connected to it. The Auto setting is the default. However, when you select the Never setting, the port does not provide power even if a Cisco IP phone or an access point is connected to it.

Cisco enhanced power negotiation allows some powered devices, such as the Cisco 7970G IP Phone, to operate in high-power mode on Catalyst 2960 PoE switches. The powered device and the switch negotiate through power-negotiation Cisco Discovery Protocol (CDP) messages for an agreed-upon power-consumption level. The negotiation allows a high-power Cisco powered device that consumes more than 7 W to operate at its highest power mode. The powered device first boots up in low-power mode, consumes less than 7 W, and negotiates to obtain enough power to operate in high-power mode. The device changes to high-power mode only when it receives confirmation from the switch. High-power devices can operate in low-power mode on switches that do not support power-negotiation CDP.

For information about configuring and monitoring PoE ports, see the switch software configuration guide.

You also can connect a Cisco IP Phone or Cisco Aironet Access Point to a Catalyst 2960 PoE switch 10/100 port and to an AC power source for redundant power. The powered device might switch to the AC power source as its primary power source upon being connected to it. In that case, the PoE port becomes the backup power source for the powered device.

If the primary source fails, the second power source becomes the primary power source to the powered device. During the power transfer, an IP phone might reboot or reestablish link with the switch.

For information about Cisco IP Phones and Cisco Aironet Access Points, see the documentation that came with your IP phone or access point.

Many legacy powered devices, including older Cisco IP phones and access points that do not fully support IEEE 802.3af, might not support PoE when connected to the switches by a crossover cable.

SFP Module Slots

The Catalyst 2960 switches (other than those listed) use Gigabit Ethernet SFP modules for Gigabit uplink connections and 100-Megabit SFP modules for 100-Megabit connections to establish fiber-optic connections. These Catalyst 2960 switches do not have an SFP module slot:

???Catalyst 2960-24LT-L

???Catalyst 2960-24TT-L

???Catalyst 2960-48TT-L

???Catalyst 2960PD-8TT-L

???Catalyst 2960-24-S

The transceiver modules are field-replaceable, providing the uplink interfaces when you insert an SFP module. You can use the SFP modules for Gigabit uplink connections to other switches. You use fiber-optic cables with LC connectors to connect to a fiber-optic SFP module. You use Category 5 or higher cable with RJ-45 connectors to connect to a copper SFP module.

For more information about these SFP modules, see your SFP module documentation or the release notes for your switch software. For more information about cabling requirements, see Appendix A, ???Connector and Cable Specifications.???

Catalyst 2960 Switch Hardware Installation Guide

Chapter 1 Product Overview

Front Panel Description

Dual-Purpose Port

You can configure a dual-purpose port as either a 10/100/1000 port or as an SFP module port.

Only one port can be active at a time. If both ports are connected, the SFP module port has priority. You cannot configure the priority setting.

You can set the 10/100/1000 ports to autonegotiate. You can also configure them as fixed 10, 100, or 1000 Mb/s (Gigabit) Ethernet ports. You can configure the duplex setting. See the software configuration for more information.

Power Input Port (Catalyst 2960PD-8TT-L Switch)

The Catalyst 2960PD-8TT-L can receive power from these sources:

1.Through a 10/100/1000 port from an upstream Ethernet switch that provides power (complies with IEEE 802.3af). (See Figure 1-15.)

2.Through an external AC power adapter that connects to the back of the switch. This external power adapter (PWR-A=) is not included with the switch, but you can order it from your Cisco representative. (See Figure 1-16.)

Figure 1-15 Connecting Through a 10/100/1000 Port

Catalyst 2960 Series

270434

1 10/100/1000 Port

Catalyst 2960 Switch Hardware Installation Guide

Chapter 1 Product Overview

Front Panel Description

Figure 1-16 Connecting Through an External AC Power Adapter

270433

1 Power adapter port

LEDs

You can use the switch LEDs to monitor switch activity and its performance. Figure 1-17 shows and example of the switch LEDs and the Mode button that you use to select one of the port modes.

All LEDs are visible through the GUI management applications???Network Assistant for multiple switches and the device manager for a single switch. The switch software configuration guide describes how to use the CLI to configure and to monitor individual switches and switch clusters.

The Catalyst 2960-24PC-L and Catalyst 2960-24LT-L switches have a PoE LED.

The Catalyst 2960-8TC-L, 2960G-8TC-L, 2960PD-8TT-L, 2960-24-S, 2960-24TC-S, and 2960-48TC-S switches do not have an RPS LED.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 1 Product Overview

Front Panel Description

Figure 1-17 Catalyst 2960 Switch LEDs

1 2

3 4

5 6

7 8

9 10

11 12

11X

137070

System LED

The System LED shows whether the system is receiving power and is functioning properly. Table 1-2 lists the LED colors and their meanings.

RPS LED

The RPS LED shows the RPS status. Table 1-3 lists the LED colors and their meanings.

Note The Catalyst 2960-8TC-L, 2960G-8TC-L, 2960PD-8TT-L, 2960-24-S, 2960-24TC-S, and 2960-48TC-S switches do not have an RPS LED.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 1 Product Overview

Rear Panel Description

Dual-Purpose Port LEDs

The LEDs on a dual-purpose port show whether an RJ-45 connector is connected to the port, or if an SFP module is installed in the slot. See the example in Figure 1-18. You can configure each port as either a 10/100/1000 port through the RJ-45 connector or as an SFP module, but not both at the same time. The LEDs show how the port is being used (Ethernet or SFP module).

The LED colors have the same meanings as described in Table 1-4 and Table 1-5.

Cable Guard for the Catalyst 2960-8TC-L, 2960G-8TC-L, and 2960PD-8TT-L Switches

You can order an optional cable guard to secure cables to the front of the Catalyst 2960-8TC-L, 2960G-8TC-L, and 2960PD-8TT-L switches and to prevent them from being accidentally removed.

To order a cable guard, contact your Cisco representative using these part numbers:

???CBLGRD-C2960-8TC: Catalyst 2960-8TC-L and Catalyst 2960PD-8TT-L switches

???CBLGRD-C2960G-8TC: Cisco Catalyst 2960G-8TC switch

Rear Panel Description

The rear panels on the Catalyst 2960 switches have all or some of these features: an RJ-45 console port, a fan exhaust, an RPS connector, and an AC power connector (see Figure 1-19.) These are the exceptions:

???No RPS connector: Catalyst 2960-8TC-L, 2960G-8TC-L, 2960PD-8TT-L, 2960-24-S, 2960-24TC-S, and 2960-48TC-S.

???No fan: Catalyst 2960-8TC-L, 2960G-8TC-L, and 2960PD-8TT-L. The console port on these switches is on the front panel rather than on the rear panel.

???AC power adapter input: Catalyst 2960PD-8TT-L switch.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 1 Product Overview

Rear Panel Description

Figure 1-19 Catalyst 2960 Switch Rear Panel

Power Supplies

All switches other than the Catalyst 2960PD-8TT-L are powered through their internal power supply (see ???Power Input Port (Catalyst 2960PD-8TT-L Switch)??? section on page 1-11).

These sections describe the power connection options:

???Internal Power Supply Connector, page 1-18

???Cisco RPS Connectors, page 1-18

Internal Power Supply Connector

The internal power supply is an autoranging unit that supports input voltages between 100 and 240 VAC. Use the supplied AC power cord to connect the AC power connector to an AC power outlet.

Cisco RPS Connectors

You can connect the Cisco RPS 2300 or the Cisco RPS 675 to provide backup power if the switch internal power supply fails on those switches that have an RPS power connector.

Note These Catalyst 2960 switches do not have an RPS connector: Catalyst 2960-8TC-L, 2960G-8TC-L, 2960PD-8TT-L, 2960-24-S, 2960-24TC-S, and 2960-48TC-S switches.

Connect the switch and the Cisco RPS 2300 or the Cisco RPS 675 to the same AC power source. See the Cisco redundant power systems (RPS) compatibility matrix documents on Cisco.com for more information about which RPS are supported on each of the Catalyst 2960 switches.

Use the supplied RPS connector cable to connect the RPS to the switch. For information about power requirements for the remote power system that you are connecting, see the hardware installation guide for that power system.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 1 Product Overview

Rear Panel Description

Warning Attach only the following Cisco RPS model to the RPS receptacle:

PWR-RPS2300, PWR675-AC-RPS-N1=. Statement 370

For more information about the Cisco RPS 675, see the Cisco RPS 675 Redundant Power System Hardware Installation Guide on Cisco.com.

Cisco RPS 2300 Connector

The Catalyst 2960-24PC-L and 2960-24LT-L switches support only the Cisco RPS 2300. This is a redundant power system that can support six network switches and provide power to one or two failed switches at a time. It automatically senses when the power supply of a connected switch fails and provides power to the failed switch, preventing loss of network traffic.

The Cisco RPS 2300 has two output levels: ???52 V and 12 V. The total maximum output power depends on the installed power-supply modules.

The six ports on the RPS 2300 provide the power and management communication signals to the Catalyst 2960 switches. The RPS 2300 communicates with the Catalyst 2960-24PC-L and

Catalyst 2960-24LT-L switches through the 22-pin cable (CAB-RPS2300-E=). All other Catalyst 2960 switches connect to the RPS 2300 through a 14-pin connector cable (CAB-RPS2300=).

All connected switches can simultaneously communicate with the RPS 2300. You can configure these RPS 2300 features through the switch software:

???Enable RPS active or standby mode for each connected switch

???Configure switch priority for RPS support

???List the connected switches and their power-supply module size

???Obtain reports when a switch is powered by the RPS

???Obtain status reports for the RPS power-supply module

???Read and monitor backup, failure, and exception history

For more information about the RPS 2300, see the Cisco Redundant Power System 2300 Hardware Installation Guide on Cisco.com at this location:

http://www.cisco.com/en/US/products/ps7148/products_installation_guide_book09186a008075e608.html

Also see the switch software configuration guide on Cisco.com.

Console Port

You can connect the switch to a PC by means of the console port and the supplied RJ-45-to-DB-9 female cable. If you want to connect the switch console port to a terminal, you need to provide an RJ-45-to-DB-25 female DTE adapter. You can order a kit (part number ACS-DSBUASYN=) containing that adapter from Cisco. For console port and adapter pinout information, see the ???Connector and Cable Specifications??? section on page A-1.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 1 Product Overview

Management Options

Security Slots

The Catalyst 2960-8TC-L, 2960G-8TC-L, and 2960PD-8TT-L switches have security slots on the left and right side panels. You can install an optional cable lock, such as the type that is used to secure a laptop computer, to secure either or both sides of the switch.

Figure 1-20 shows the slot on a left-side panel.

Figure 1-20 Switch Left Panel

157824

1 Security slot

Management Options

The Catalyst 2960 switches offer several management options:

???Cisco Network Assistant

Network Assistant is a PC-based network management GUI application optimized for LANs of small and medium-sized businesses. Network Assistant offers centralized management of Cisco switches ranging from the Catalyst 2950 switch to the Catalyst 4506 switch. Through the GUI, you can configure and manage switch clusters or standalone switches.

Network Assistant is available at no cost and can be downloaded from this URL: http://www.cisco.com/go/networkassistant

For information on starting Network Assistant, see the Getting Started with Cisco Network Assistant guide on Cisco.com.

???Device manager

You can use the device manager, which is in the switch memory, to manage individual and standalone switches. Device manager is a web interface that offers quick configuration and monitoring. You can access the device manager from anywhere in your network through a web browser. For more information, see the device manager online help.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 1 Product Overview

Management Options

???Cisco IOS command-line interface (CLI)

The switch CLI is based on Cisco IOS software and is enhanced to support desktop-switching features. You can fully configure and monitor the switch and switch cluster members from the CLI. You can access the CLI either by connecting your management station directly to the switch console port or by using Telnet from a remote management station. See the Catalyst 2960 Switch Command Reference on Cisco.com for more information.

For setup instructions that use the CLI, go to Appendix C, ???Configuring the Switch with the CLI-Based Setup Program.???

???CiscoView application

The CiscoView device-management application displays the switch image that you can use to set configuration parameters and to view switch status and performance information. The CiscoView application, which you purchase separately, can be a standalone application or part of a Simple Network Management Protocol (SNMP) platform. See the CiscoView documentation for more information.

???SNMP network management

You can use SNMP management applications such as CiscoWorks LAN Management Solution (LMS) and HP OpenView to configure and manage the switch. You also can manage it from an SNMP-compatible workstation that is running platforms such as HP OpenView or SunNet Manager.

The Cisco Configuration Engine is a network management device that works with embedded CNS agents in the switch software. You can use Cisco Configuration Engine to automate initial configurations and configuration updates on the switch.

Network Configurations

See the switch software configuration guide on Cisco.com for an explanation of network configuration concepts. The software configuration guide also provides examples of network configurations that use the switch to create dedicated network segments that are interconnected through Gigabit Ethernet connections.

Catalyst 2960 Switch Hardware Installation Guide

C H A P T E R 2

Switch Installation (24- and 48-Port Switches)

This chapter describes how to start your switch and how to interpret the power-on self-test (POST) that ensures proper operation. It also describes how to install the switch and how to make connections to the switch.

This chapter provides installation information for all Catalyst 2960 switches, except for the Catalyst 2960-8TC, Catalyst 2960G-8TC, and Catalyst 2960PD-8TT-L switches. For installation information for those switches, see Chapter 3, ???Switch Installation (8-Port Switches).???

The instructions in this chapter for connecting to the switch ports and for installing and connecting to the small form-factor pluggable (SFP) modules apply to all Catalyst 2960 switches, including the 8-port switches.

Read the topics and perform the procedures in this order:

???Preparing for Installation, page 2-1

???Verifying Switch Operation, page 2-7

???Installing the Switch, page 2-7

???Installing and Removing SFP Modules, page 2-15

???Connecting to the 10/100 and 10/100/1000 Ports, page 2-18

???Connecting to SFP Modules, page 2-19

???Connecting to a Dual-Purpose Port, page 2-22

???Where to Go Next, page 2-22

Preparing for Installation

This section covers these topics:

???Warnings, page 2-2

???Installation Guidelines, page 2-5

???Verifying Package Contents, page 2-6

???Verifying Switch Operation, page 2-7

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Preparing for Installation

Warnings

These warnings are translated into several languages in the Regulatory Compliance and Safety Information for the Catalyst 2960 Switch document that ships with the switch.

Warning To prevent the switch from overheating, do not operate it in an area that exceeds the maximum recommended ambient temperature of 113??F (45??C). To prevent airflow restriction, allow at least 3 inches (7.6 cm) of clearance around the ventilation openings. Statement 17B

Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. Statement 43

Warning Do not stack the chassis on any other equipment. If the chassis falls, it can cause severe bodily injury and equipment damage. Statement 48

Warning Ethernet cables must be shielded when used in a central office environment. Statement 171

Warning If a redundant power system (RPS) is not connected to the switch, install an RPS connector cover on the back of the switch. Statement 265

Warning To comply with safety regulations, mount the switches on a wall with the front panel facing up.

Statement 266

Warning This product must be connected to a power-over-ethernet (PoE) IEEE 802.3af compliant power source or an IEC60950 compliant limited power source. Statement 353

Warning Attach only the following Cisco RPS model to the RPS receptacle:

PWR-RPS2300, PWR675-AC-RPS-N1=. Statement 370

Warning Read the wall-mounting instructions carefully before beginning installation. Failure to use the correct hardware or to follow the correct procedures could result in a hazardous situation to people and damage to the system. Statement 378

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Preparing for Installation

Statement 371???Power Cable and AC Adapter

Warning Do not work on the system or connect or disconnect cables during periods of lightning activity.

Statement 1001

Warning Read the installation instructions before connecting the system to the power source. Statement 1004

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. Statement 1006

Warning Class 1 laser product. Statement 1008

Warning 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.

Statement 1017

Warning The plug-socket combination must be accessible at all times, because it serves as the main disconnecting device. Statement 1019

Warning 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 1024

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Preparing for Installation

Warning This unit might have more than one power supply connection. All connections must be removed to de-energize the unit. Statement 1028

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

Statement 1030

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

Statement 1040.

Warning For connections outside the building where the equipment is installed, the following ports must be connected through an approved network termination unit with integral circuit protection: 10/100/1000 Ethernet. Statement 1044

Warning When installing or replacing the unit, the ground connection must always be made first and disconnected last. Statement 1046

Warning No user-serviceable parts inside. Do not open. Statement 1073

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

Guidelines for Particulate Matter

Cisco Ethernet Switches are equipped with cooling mechanisms, such as fans and blowers. However, these fans and blowers can draw dust and other particles, causing contaminant buildup inside the chassis, which can result in a system malfunction.

You must install this equipment in an environment as free as possible from dust and foreign conductive material (such as metal flakes from construction activities).

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Preparing for Installation

These standards provide guidelines for acceptable working environments and acceptable levels of suspended particulate matter:

???Network Equipment Building Systems (NEBS) GR-63-CORE

???National Electrical Manufacturers Association (NEMA) Type 1

???International Electrotechnical Commission (IEC) IP-20

This precaution applies to all Catalyst 2960 switches except for the Catalyst 2960-8TC, 2960G-8TC, and 2960PD-8TT-L switches.

Installation Guidelines

This section does not apply to the Catalyst 2960-8TC, 2960G-8TC, and 2960PD-8TT-L switches. For information applicable to those switches, see Chapter 3, ???Switch Installation (8-Port Switches).???

When you determine where to place the switch, be sure to observe these requirements:

???For 10/100/1000 ports, cable lengths from the switch to connected devices must be no longer than 328 feet (100 meters).

???The cables meet the specifications in Table A-1 on page A-5, which lists the cable specifications for 1000BASE-X and 100BASE-X SFP modules available for the Catalyst 2960 switch. Catalyst 2960 switch SFP ports can use both GLC-GE-100XX and GLC-FE-100XX SFP modules.

When you use shorter lengths of single-mode fiber cable, you might need to insert an inline optical attenuator in the link to avoid overloading the receiver.

When the fiber-optic cable span is less than 15.43 miles (25 km), you should insert a 5-decibel (dB) or 10-dB inline optical attenuator between the fiber-optic cable plant and the receiving port on the 1000BASE-ZX SFP module at each end of the link.

???The operating environment must be within the ranges listed in Appendix B, ???Technical Specifications.???

???Clearance to front and rear panels meets these conditions:

???You can easily read the front-panel indicators.

???Access to ports is sufficient for unrestricted cabling.

???The rear-panel power connector is within reach of an AC power receptacle.

???Cabling is away from sources of electrical noise, such as radios, power lines, and fluorescent lighting fixtures. Make sure the cabling is safely away from other devices that might damage the cables.

???Airflow around the switch and through the vents is unrestricted.

???Temperature around the unit does not exceed 113??F (45??C).

If the switch is installed in a closed or multirack assembly, the temperature around it might be greater than normal room temperature.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Preparing for Installation

Verifying Package Contents

This section does not apply to the Catalyst 2960-8TC, 2960G-8TC, and 2960PD-8TT-L switches. For information applicable to those switches, see Chapter 3, ???Switch Installation (8-Port Switches).???

Carefully remove the contents from the shipping container, and look at each item for damage. If any item is missing or damaged, contact your Cisco representative or reseller for support. Return all packing material to the shipping container, and save it.

The switch is shipped with these items:

???Documentation CD that includes:

???Catalyst 2960 Switch Getting Started Guide

???Catalyst 2960 Switch Getting Started Guide (8-Port Switches)

???Regulatory Compliance and Safety Information for the Catalyst 2960 Switch

???Regulatory Compliance and Safety Information for the Catalyst 2960 Switch (printed guide that contains only German warnings)

???AC power cord (AC-powered switches)

???One RJ-45-to-DB-9 adapter cable

???Mounting kit that contains:

???Four rubber feet for mounting the switch on a table

???Two 19-inch rack-mounting brackets (also used for wall mounting)

???Six Phillips flat-head screws for attaching the brackets to the switch

???Four Phillips machine screws for attaching the brackets to a rack

???One cable guide and one black Phillips machine screw for attaching the cable guide to one of the mounting brackets

???One redundant power system (RPS) connector cover

???Two Phillips pan-head screws (for attaching the RPS cover)

???Four Phillips truss-head screws (for wall-mounting brackets)

Note The Catalyst 2960-8TC-L, 2960G-8TC-L, 2960-24-S, 2960-24TC-S, and 2960-48TC-S switches do not have an RPS connector.

You can use the cable guide to manage a large number of cables in a rack. This is a different part than the cable guard, which you use to secure cables to the front of the switch and prevent them from being accidentally removed on the Catalyst 2960-8TC, 2960G-8TC, and 2960PD-8TT-L switches.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Installing the Switch

Verifying Switch Operation

Before you install the switch in a rack, on a wall, or on a table or shelf, you should power on the switch and verify that the switch passes POST.

If your configuration has an RPS, connect the switch and the RPS to the same AC power source. See Chapter 3, ???Switch Installation (8-Port Switches),??? and see the Cisco RPS documentation for more information.

Note When you connect the RPS to the switch, put the RPS in standby mode. Set the RPS to active mode during normal operation.

To power on the switch, connect one end of the AC power cord to the AC power connector on the switch, and connect the other end of the power cord to an AC power outlet.

Warning Attach only the following Cisco RPS model to the RPS receptacle:

PWR-RPS2300, PWR675-AC-RPS-N1=. Statement 370

As the switch powers on, it begins the POST, a series of tests that runs automatically to ensure that the switch functions properly. LEDs can blink during the test. POST lasts approximately 1 minute. When the switch begins POST, the System, RPS, Status, Duplex, and Speed LEDs turn green. The System LED blinks green, and the other LEDs remain solid green.

When the POST completes successfully, the System LED remains green. The RPS LED remains green for some time and then reflects the switch operating status. The other LEDs turn off and then reflect the switch operating status. If a switch fails POST, the System LED turns amber.

POST failures are usually fatal. Call Cisco technical support representative if your switch fails POST.

After a successful POST, disconnect the power cord from the switch. Install the switch in a rack, on a wall, on a table, or on a shelf as described in the ???Installing the Switch??? section on page 2-7.

Installing the Switch

This section describes these installation procedures:

???Rack-Mounting, page 2-8

???Wall-Mounting, page 2-12

???Table- or Shelf-Mounting, page 2-15

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Installing the Switch

Rack-Mounting

This section applies to all switches except the Catalyst 2960-8TC-L, Catalyst 2960G-8TC-L, and Catalyst 2960PD-8TT-L switches. For information applicable to those switches, see Chapter 3, ???Switch Installation (8-Port Switches).??? The illustrations in this section might not show your specific switch; however, the instructions apply to all 24- and 48-port switches.

???This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

???When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack.

???If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack. Statement 1006

To install the switch in a 19-inch or 24-inch rack (24-inch racks require optional mounting hardware), follow the instructions described in these sections:

???Removing Screws from the Switch, page 2-8

???Attaching Brackets to the Catalyst 2960 Switch, page 2-9

???Mounting the Switch in a Rack, page 2-11

???Attaching the Cable Guide, page 2-12

An optional bracket kit that is not included with the switch is required to install the switch in a 24-inch rack. You can order a kit that contains the 24-inch rack-mounting brackets and hardware from Cisco by using part number RCKMNT-1RU=.

Removing Screws from the Switch

If you plan to install the switch in a rack, you must first remove screws in the switch chassis so that you can attach the mounting brackets. Figure 2-1 shows how to remove the chassis screws in a

Catalyst 2960 switch.

Figure 2-1 Removing Screws from the Catalyst 2960 Switch

Chapter 2 Switch Installation (24- and 48-Port Switches)

Installing the Switch

Attaching Brackets to the Catalyst 2960 Switch

The bracket orientation and the brackets that you use depend on whether you are attaching the brackets for a 19-inch or a 24-inch rack. For 19-inch racks, use bracket part number 700-8209-01; for 24-inch racks, use bracket part number 700-13248-01. Figure 2-2 to Figure 2-7 show how to attach each type of bracket to one side of the switch. Follow the same steps to attach the second bracket to the opposite side.

Figure 2-2 Attaching Brackets for 19-Inch Racks to a Catalyst 2960 Switch, Front Panel Forward

1XX

SYST

RPS

STAT

DUPLX

SPEED

2X MODE

1 Phillips flat-head screws

Figure 2-3 Attaching Brackets for 24-Inch Racks to a Catalyst 2960 Switch, Front Panel Forward

1X1X SYST RPS

STAT DUPLX SPEED

2X MODE

1 Phillips flat-head screws

Figure 2-4 Attaching Brackets for 19-Inch Racks to a Catalyst 2960 Switch, Rear Panel Forward

1 Phillips flat-head screws

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Installing the Switch

Mounting the Switch in a Rack

After the brackets are attached to the switch, use the four supplied number-12 Phillips machine screws to securely attach the brackets to the rack, as shown in Figure 2-8.

Figure 2-8 Mounting the Catalyst 2960 Switch in a Rack

SYST

RPS

STAT

DUPLX

SPEED

MODE

1 Phillips machine screws

137079

After the switch is mounted in the rack, do these tasks to complete the installation:

???Power on the switch. See the ???Verifying Switch Operation??? section on page 2-7.

???Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the Catalyst 2960 Switch Getting Started Guide for instructions.

???Connect to the front-panel ports. See the ???Connecting to the 10/100 and 10/100/1000 Ports??? section on page 2-18, the ???Connecting to SFP Modules??? section on page 2-19, and the ???Connecting to a Dual-Purpose Port??? section on page 2-22 to complete the installation.

For configuration instructions about using the command-line interface (CLI) setup program, go to Appendix C, ???Configuring the Switch with the CLI-Based Setup Program.???

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Installing the Switch

Attaching the Cable Guide

We recommend that you attach the cable guide to prevent the cables from obscuring the front panel of the switch and the other devices installed in the rack. Use the supplied black screw shown in Figure 2-9 to attach the cable guide to the left or right bracket.

Figure 2-9 Attaching the Cable Guide on the Catalyst 2960 Switch

SYST

RPS

STAT

DUPLX

SPEED

MODE

137080

1 Cable guide screw

Wall-Mounting

This section does not apply to the Catalyst 2960-8TC, 2960G-8TC, and 2960PD-8TT-L switches. For information applicable to those switches, see Chapter 3, ???Switch Installation (8-Port Switches).???

To install the switch on a wall, follow the instructions in these sections:

???Attaching the Brackets to the Switch for Wall-Mounting, page 2-13

???Attaching the RPS Connector Cover, page 2-13

???Mounting the Switch on a Wall, page 2-14

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Installing the Switch

Attaching the Brackets to the Switch for Wall-Mounting

Figure 2-10 shows how to attach a 19-inch bracket to one side of the switch. Follow the same steps to attach the second bracket to the opposite side.

Figure 2-10 Attaching the 19-inch Brackets for Wall-Mounting

11X

137088

1 Phillips truss-head screws

Attaching the RPS Connector Cover

If your switch has an RPS connector and you are not using an RPS with your switch, use the two Phillips pan-head screws to attach the RPS connector cover to the back of the switch, as shown in Figure 2-11.

Warning If an RPS is not connected to the switch, install an RPS connector cover on the back of the switch.

Statement 265

Figure 2-11 Attaching the RPS Connector Cover on the Catalyst 2960 Switch

CONSOLE

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Installing the Switch

Mounting the Switch on a Wall

For the best support of the switch and cables, make sure the switch is attached securely to wall studs or to a firmly attached plywood mounting backboard. Mount the switch with the front panel facing up, as shown in Figure 2-12.

Warning To comply with safety regulations, mount the switches on a wall with the front panel facing up.

Statement 266

Warning If a redundant power system (RPS) is not connected to the switch, install an RPS connector cover on the back of the switch. Statement 265

Figure 2-12 Mounting the Switch on a Wall

137083

1 User-supplied screws

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Installing and Removing SFP Modules

After the switch is mounted on the wall, do these tasks to complete the installation:

???Power on the switch. See the ???Verifying Switch Operation??? section on page 2-7.

???Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the Catalyst 2960 Switch Getting Started Guide for instructions.

For configuration instructions about using the CLI setup program, go to Appendix C, ???Configuring the Switch with the CLI-Based Setup Program.???

Table- or Shelf-Mounting

Follow these steps to install the switch on a table or shelf:

Step 1 Locate the adhesive strip with the rubber feet in the mounting-kit envelope. Attach the four rubber feet to the recessed areas on the bottom of the unit.

Step 2 Place the switch on the table or shelf near an AC power source.

After the switch is mounted on the table, do these tasks to complete the installation:

???Power on the switch. See the ???Verifying Switch Operation??? section on page 2-7.

???Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the Catalyst 2960 Switch Getting Started Guide for instructions.

???Connect to the front-panel ports. See the ???Connecting to the 10/100 and 10/100/1000 Ports??? section on page 2-18, ???Connecting to SFP Modules??? section on page 2-19 and the ???Connecting to a Dual-Purpose Port??? section on page 2-22 to complete the installation.

For configuration instructions about using the CLI setup program, go to Appendix C, ???Configuring the Switch with the CLI-Based Setup Program.???

Note When the connectors are not being used, replace the dust covers on them for protection.

Installing and Removing SFP Modules

These sections describe how to install and remove SFP modules. SFP modules are inserted into SFP module slots on the front of the Catalyst 2960 switches. These field-replaceable modules provide the uplink optical interfaces, laser send (TX) and laser receive (RX).

You can use any combination of SFP modules. Refer to the Catalyst 2960 switch release notes for the list of SFP modules that the Catalyst 2960 switch supports. Each SFP module must be of the same type as the SFP module on the other end of the cable, and the cable must not exceed the stipulated cable length for reliable communications. See the ???SFP Module Cable Specifications??? section on page A-4 for cable

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Installing and Removing SFP Modules

stipulations for SFP module connections. Use only Cisco SFP modules on the Catalyst 2960 switch. Cisco SFP modules and the Catalyst 2960 switch support the Quality ID feature. Only SFP modules with the Quality ID feature are supported.

For detailed instructions on installing, removing, and cabling the SFP module, refer to your SFP module documentation.

Installing SFP Modules into SFP Module Slots

Figure 2-13 shows an SFP module that has a bale-clasp latch.

Caution We strongly recommend that you do not install or remove the SFP module with fiber-optic cables attached to it because of the potential damage to the cables, the cable connector, or the optical interfaces in the SFP module. Disconnect all cables before removing or installing an SFP module.

Removing and installing an SFP module can shorten its useful life. Do not remove and insert SFP modules more often than is absolutely necessary.

Figure 2-13 SFP Module with a Bale-Clasp Latch

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To insert an SFP module into the SFP module slot, follow these steps:

Step 1 Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.

Step 2 Find the send (TX) and receive (RX) markings that identify the top side of the SFP module.

Note On some SFP modules, the send and receive (TX and RX) markings might be replaced by arrows that show the direction of the connection, either send or receive (TX or RX).

Step 3 Align the SFP module in front of the slot opening.

Step 4 Insert the SFP module into the slot until you feel the connector on the module snap into place in the rear of the slot. See Figure 2-14.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Installing and Removing SFP Modules

Figure 2-14 Installing an SFP Module into an SFP Module Slot

1 SFP module

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Step 5 Remove the dust plugs from the SFP module optical ports and store them for later use.

Caution Do not remove the dust plugs from the SFP module port or the rubber caps from the fiber-optic cable until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables from contamination and ambient light.

Step 6 Insert the LC cable connector into the SFP module.

Removing SFP Modules from SFP Module Slots

To remove an SFP module from a module receptacle, follow these steps:

Step 1 Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.

Step 2 Disconnect the LC from the SFP module.

Tip For reattachment, note which cable connector plug is send (TX) and which is receive (RX).

Step 3 Insert a dust plug into the optical ports of the SFP module to keep the optical interfaces clean.

Step 4 Unlock and remove the SFP module, as shown in Figure 2-15.

If the module has a bale-clasp latch, pull the bale out and down to eject the module. If the bale-clasp latch is obstructed and you cannot use your index finger to open it, use a small, flat-blade screwdriver or other long, narrow instrument to open the bale-clasp latch.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Connecting to the 10/100 and 10/100/1000 Ports

Figure 2-15 Removing a Bale-Clasp Latch SFP Module by Using a Flat-Blade Screwdriver

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1 Bale clasp

Step 5 Grasp the SFP module between your thumb and index finger, and carefully remove it from the module slot.

Step 6 Place the removed SFP module in an antistatic bag or other protective environment.

Connecting to the 10/100 and 10/100/1000 Ports

The switch 10/100/1000 ports configure themselves to operate at the speed of attached devices. If the attached ports do not support autonegotiation, you can explicitly set the speed and duplex parameters. Connecting devices that do not autonegotiate or that have their speed and duplex parameters manually set can reduce performance or result in no linkage.

To maximize performance, choose one of these methods for configuring the Ethernet ports:

???Let the ports autonegotiate both speed and duplex.

???Set the port speed and duplex parameters on both ends of the connection. Follow these steps to connect to 10BASE-T, 100BASE-TX or 1000BASE-T devices:

Caution To prevent electrostatic-discharge (ESD) damage, follow your normal board and component handling procedures.

Step 1 When connecting to workstations, servers, routers, and Cisco IP Phones, connect a straight-through cable to an RJ-45 connector on the front panel. (See Figure 2-16.) When connecting to switches or repeaters, use a crossover cable. (See the ???Cable and Adapter Specifications??? section on page A-4 for cable-pinout descriptions.)

When you connect to 1000BASE-T-compatible devices, be sure to use a twisted four-pair, Category 5 or higher cable.

The auto-MDIX feature is enabled by default. For configuration information for this feature, see the switch software configuration guide or the switch command reference.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Connecting to SFP Modules

Figure 2-16 Connecting to an Ethernet Port

SYST RPS STAT DUPLX SPEED

MODE

1X1X

11X

12X

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Step 2 Connect the other end of the cable to an RJ-45 connector on the other device. The port LED turns on when both the switch and the connected device have established link.

The port LED is amber while Spanning Tree Protocol (STP) discovers the topology and searches for loops. This can take up to 30 seconds, and then the port LED turns green. If the port LED does not turn on, the device at the other end might not be turned on, or there might be a cable problem or a problem with the adapter installed in the attached device. See Chapter 4, ???Troubleshooting,??? for solutions to cabling problems.

Step 3 Reconfigure and reboot the connected device if necessary.

Step 4 Repeat Steps 1 through 3 to connect each device.

Connecting to SFP Modules

This section describes how to connect to SFP modules. For instructions on how to connect to fiber-optic SFP modules, see the ???Connecting to Fiber-Optic SFP Modules??? section. For instructions on how to connect to copper 1000BASE-T SFP modules, see the ???Connecting to 1000BASE-T SFP Modules??? section.

For instructions about how to install or remove an SFP module, see the ???Installing and Removing SFP Modules??? section on page 2-15.

For instructions on how to connect to a dual-purpose port, see the ???Connecting to a Dual-Purpose Port??? section on page 2-22.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Connecting to SFP Modules

Connecting to Fiber-Optic SFP Modules

Follow these steps to connect a fiber-optic cable to an SFP module:

Warning Class 1 laser product. Statement 1008

Caution Do not remove the rubber plugs from the SFP module port or the rubber caps from the fiber-optic cable until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables from contamination and ambient light.

Before connecting to the SFP module, be sure that you understand the port and cabling stipulations in the ???Installation Guidelines??? section on page 2-5 and in the ???SFP Module Slots??? section on page 1-10. See Appendix A, ???Connector and Cable Specifications??? for information about the LC on the SFP module.

Step 1 Remove the rubber plugs from the module port and fiber-optic cable, and store them for future use.

Step 2 Insert one end of the fiber-optic cable into the SFP module port (see Figure 2-17).

Figure 2-17 Connecting to a Fiber-Optic SFP Module Port

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1 LC connector

Step 3 Insert the other cable end into a fiber-optic receptacle on a target device.

Step 4 Observe the port status LED.

The LED turns green when the switch and the target device have an established link.

The LED turns amber while the STP discovers the network topology and searches for loops. This process takes about 30 seconds, and then the port LED turns green.

If the LED is off, the target device might not be turned on, there might be a cable problem, or there might be problem with the adapter installed in the target device. See Chapter 4, ???Troubleshooting,??? for solutions to cabling problems.

Step 5 If necessary, reconfigure and restart the switch or target device.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Connecting to SFP Modules

Connecting to 1000BASE-T SFP Modules

Follow these steps to connect a Category 5 (or higher) cable to a 1000BASE-T SFP module:

Caution To prevent ESD damage, follow your normal board and component handling procedures.

Step 1 Insert one end of the cable into the SFP module port (see Figure 2-18). When connecting to servers, workstations, and routers, insert a four twisted-pair, straight-through cable in the RJ-45 connector. When connecting to switches or repeaters, insert a four twisted-pair, crossover cable.

Note When connecting to a 1000BASE-T device, be sure to use a four twisted-pair, Category 5 or higher cable.

Note The auto-MDIX feature is enabled by default. For configuration information for this feature, see the switch software configuration guide or the switch command reference.

Figure 2-18 Connecting to a 1000BASE-T SFP Module

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1 RJ-45 connector

Step 2 Insert the other cable end in an RJ-45 connector on a target device.

Step 3 Observe the port status LED.

The LED turns green when the switch and the target device have an established link.

The LED turns amber while the STP discovers the network topology and searches for loops. This process takes about 30 seconds, and then the port LED turns green.

Step 4 If necessary, reconfigure and restart the switch or target device.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 2 Switch Installation (24- and 48-Port Switches)

Connecting to a Dual-Purpose Port

You can configure the dual-purpose port as either a 10/100/1000 port or as an SFP module port. For a detailed description of this port, see ???Dual-Purpose Port??? section on page 1-11.

To connect to a dual-purpose port, follow these steps:

Step 1 Connect an RJ-45 connector to the 10/100/1000 port, or install an SFP module into the SFP module slot, and connect a cable to the SFP module port, as shown in Figure 2-19.

Only one port can be active at a time. If both ports are connected, the SFP module port has priority. You cannot configure the priority setting.

For more information about RJ-45 connectors and SFP modules, see the ???Connecting to the 10/100 and 10/100/1000 Ports??? section on page 2-18, ???Installing and Removing SFP Modules??? section on

page 2-15, and the ???Connecting to SFP Modules??? section on page 2-19.

Figure 2-19 Connecting to a Dual-Purpose Port

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1 RJ-45 connector 2 LC connector

Step 2 Connect the other end of the cable to the other device. The switch automatically detects the connection and configures the port.

By default, the switch detects whether an RJ-45 connector or SFP module is connected to a dual-purpose port and configures the port accordingly. You can change this setting and configure the port to recognize only an RJ-45 connector or only an SFP module by using the media type interface configuration command. For more information, see the command reference.

Where to Go Next

If the default configuration is satisfactory, the switch does not need further configuration. You can use any of these management options to change the default configuration:

???Start the device manager, which is in the switch memory, to manage individual switches. The device manager is an easy-to-use web interface that offers quick configuration and monitoring. You can access the device manager from anywhere in your network through a web browser. For more information, see the device manager online help.

???Start the Network Assistant application, which is described in the Getting Started with Cisco Network Assistant guide. Through this GUI, you can configure and monitor a switch cluster or an individual switch.

Catalyst 2960 Switch Hardware Installation Guide

C H A P T E R 3

Switch Installation (8-Port Switches)

This chapter describes how to start your switch and how to interpret the power-on self-test (POST) that ensures proper operation. It also describes how to install the switch. The installation information in this chapter is specific to the Catalyst 2960-8TC-L, Catalyst 2960G-8TC-L, and Catalyst 2960PD-8TT-L switches. For installation information applicable to the other Catalyst 2960 switches, see Chapter 2, ???Switch Installation (24- and 48-Port Switches).???

Read the topics and perform the procedures in this order:

???Preparing for Installation, page 3-1

???Verifying Switch Operation, page 3-6

???Installing the Switch, page 3-6

???Where to Go Next, page 3-18

For information about connecting to the switch, see Chapter 2, ???Switch Installation (24- and 48-Port Switches).???

Preparing for Installation

This section covers these topics:

???Warnings, page 3-1

???Installation Guidelines, page 3-3

???Equipment That You Supply, page 3-4

???Verifying Package Contents, page 3-5

Warnings

These warnings are translated into several languages in the Regulatory Compliance and Safety Information for the Catalyst 2960 Switch document that shipped with the switch.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 3 Switch Installation (8-Port Switches)

Preparing for Installation

Warning Do not stack the chassis on any other equipment. If the chassis falls, it can cause severe bodily injury and equipment damage. Statement 48

Warning Ethernet cables must be shielded when used in a central office environment. Statement 171

Note Warning statement 353 applies only to the Catalyst 2960PD-8TT-L switch:

Warning This product must be connected to a power-over-ethernet (PoE) IEEE 802.3af compliant power source or an IEC60950 compliant limited power source. Statement 353

Statement 371???Power Cable and AC Adapter

Warning Do not work on the system or connect or disconnect cables during periods of lightning activity.

Statement 1001

Warning Read the installation instructions before connecting the system to the power source. Statement 1004

???This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

???When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack.

???If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack. Statement 1006

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Chapter 3 Switch Installation (8-Port Switches)

Preparing for Installation

Warning Class 1 laser product. Statement 1008

Warning The plug-socket combination must be accessible at all times, because it serves as the main disconnecting device. Statement 1019

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

Statement 1040.

Warning When installing or replacing the unit, the ground connection must always be made first and disconnected last. Statement 1046

Warning No user-serviceable parts inside. Do not open. Statement 1073

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

Installation Guidelines

This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other Catalyst 2960 switches, see Chapter 2, ???Switch Installation (24- and 48-Port Switches).???

When you determine where to place the switch, be sure to observe these requirements:

???The operating environment must be within the ranges listed in Appendix B, ???Technical Specifications.???

???Airflow around the switch and through the vents must be unrestricted.

We strongly recommend that you allow at least 3 inches (7.6 cm) of clearance around the ventilation openings.

???Temperature around the unit does not exceed 113??F (45??C).

If the switch is installed in a closed environment or in a multirack assembly, the temperature around it might be greater than normal room temperature.

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Chapter 3 Switch Installation (8-Port Switches)

Preparing for Installation

???Humidity around the switch must not exceed 85 percent.

???Altitude at the installation site must not be greater than 10,000 feet (3,049 meters).

???The bottom of the switch might be hot to the touch if the switch is operating at its maximum temperature 113??F (45??C) and is in an environment that exceeds normal room temperature (such as in a closet, in a cabinet, or in a closed or multirack assembly).

???Do not place any items on the top of the switch.

???Do not stack switches or place switches side-by-side unless they are separated on all sides by at least 3 inches (7.6 cm) of clearance from each other.

???Allow at least 1.75 inches (4 cm) of clearance above each switch in the rack.

???Do not wall-mount the switch with its front panel facing up or sideways. According to safety regulations, wall-mount the switch with its front panel facing down to prevent airflow restriction and to provide easier access to the cables.

???Clearance to the switch front and rear panels meets these conditions

???You can easily read the front-panel indicators.

???Access to ports is sufficient for unrestricted cabling.

???The AC power cord can reach from the AC power outlet to the connector on the switch rear panel.

???For 10/100/1000 ports, cable lengths from the switch to connected devices must be 328 feet (100 meters).

???The cables meet the specifications in Table A-1 on page A-5, which lists the cable specifications for 1000BASE-X and 100BASE-X small form-factor (SFP) modules available for the Catalyst 2960 switch.

When you use shorter lengths of single-mode fiber-optic cable, you might need to insert an inline optical attenuator in the link to avoid overloading the receiver.

Equipment That You Supply

This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other Catalyst 2960 switches, see Chapter 2, ???Switch Installation (24- and 48-Port Switches).???

You need this equipment to install the switch:

???Number-2 Phillips screwdriver

???Drill with a #27 drill bit (0.144-inch [3.7 mm])

Catalyst 2960 Switch Hardware Installation Guide

Chapter 3 Switch Installation (8-Port Switches)

Preparing for Installation

You can order an optional cable guard to secure cables to the front of the switch and prevent them from being accidentally removed. To order a cable guard, contact your Cisco representative and use these part numbers:

???Catalyst 2960-8TC-L and 2960PD-8TT-L switches cable guard part number: CBLGRD-C2960-8TC=

???Catalyst 2960G-8TC-L switch cable guard part number: CBLGRD-C2960G-8TC=

The cable guard is a different part than the cable guide, which you can use to manage a large number of cables in a rack on switches other than the Catalyst 2960-8TC-L and Catalyst 2960G-8TC-L switches.

The switch has security slots in the left and right side panels. You can install an optional cable lock, such as the type that is used to secure a laptop computer, to secure either or both sides of the switch. Cable locks are available from most computer accessory suppliers.

Installing the Catalyst 2960 8-port switches in a 19-inch rack requires an optional bracket kit that is not included with the switch. You can order a kit containing the 19-inch rack-mounting brackets and hardware from Cisco. The kit part number is RCKMNT-19-CMPCT=.

If you want to connect a terminal to the switch console port, you need to provide an RJ-45-to-DB-25 female DTE adapter. You can order a kit (part number ACS-DSBUASYN=) with that adapter from Cisco.

Verifying Package Contents

This section is specific to the Catalyst 2960 8-port switches. For information that applies to all other Catalyst 2960 switches, see Chapter 2, ???Switch Installation (24- and 48-Port Switches).???

Note Carefully remove the contents from the shipping container, and check each item for damage. If any item is missing or damaged, contact your Cisco representative or reseller for support. Return all packing material to the shipping container, and save it.

The switch is shipped with these items:

???Documentation CD that contains the Catalyst 2960 Switch Getting Started Guide (8-Port Switches) and the Catalyst 2960 Switch Getting Started Guide

???Regulatory Compliance and Safety Information for the Catalyst 2960 Switch

???AC power cord (AC-powered switches)

???One RJ-45-to-DB-9 adapter cable

???Mounting kit that contains:

???Four rubber feet for installing the switch on a desk or shelf

???Three number-8 Phillips pan-head screws for mounting the switch on or under a desk or shelf, or on a wall

???Screw template for aligning screws

???Magnet for mounting the switch on a metal surface

Catalyst 2960 Switch Hardware Installation Guide

Chapter 3 Switch Installation (8-Port Switches)

Verifying Switch Operation

Before installing the switch in a rack, or on a desk, a shelf, or a wall, you should power on the switch and verify that it passes POST.

To power on the switch, connect one end of the AC power cord to the AC power connector on the switch, and connect the other end of the power cord to an AC power outlet.

You can power the Catalyst 2960PD-8TT-L switch through a 10/100/1000 uplink port, which can receive power from an upstream PoE switch. You can also connect the switch to an AC power adapter on the rear panel. See the ???Power Input Port (Catalyst 2960PD-8TT-L Switch)??? section on page 1-11 for more information.

As the switch powers on, it begins the POST, a series of tests that runs automatically to ensure that the switch functions properly. LEDs can blink during the test. POST lasts approximately 1 minute. When the switch begins POST, the System, Status, Duplex, and Speed LEDs turn green. The System LED blinks green, and the other LEDs remain solid green.

When the POST completes successfully, the System LED remains green. The other LEDs turn off and then reflect the switch operating status. If a switch fails POST, the System LED turns amber.

POST failures are usually fatal. Call Cisco technical support representative if your switch fails POST.

After a successful POST, disconnect the power cord from the switch. Install the switch in a rack, or on a desk, a shelf, or a wall, as described in the ???Installing the Switch??? section on page 3-6.

Installing the Switch

This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other Catalyst 2960 switches, see Chapter 2, ???Switch Installation (24- and 48-Port Switches).???

This section describes these installation procedures:

???Desk- or Shelf-Mounting (without Mounting Screws), page 3-6

???Desk- or Shelf-Mounting (with Mounting Screws), page 3-7

???Under the Desk- or Shelf-Mounting (with Mounting Screws), page 3-9

???Wall-Mounting (with Mounting Screws), page 3-12

???Magnet Mounting, page 3-14

???Rack-Mounting, page 3-15

???Wall-Mounting (with Rack-Mount Brackets), page 3-16

Desk- or Shelf-Mounting (without Mounting Screws)

This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other Catalyst 2960 switches, see Chapter 2, ???Switch Installation (24- and 48-Port Switches).???

The switch can be installed on top of a desk or shelf with or without mounting screws. If you do not want to use the mounting screws, follow these steps:

Step 1 Locate the adhesive strip with the rubber feet in the accessory kit.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 3 Switch Installation (8-Port Switches)

Installing the Switch

Step 2 Remove the four rubber feet from the adhesive strip, and attach them to the recessed areas on the bottom of the unit. This prevents the switch from sliding on the desk or shelf.

Note We strongly recommend that you attach the rubber feet. Doing so helps prevent airflow restriction and overheating.

Step 3 Place the switch on the desk or shelf.

Note We strongly recommend that you allow at least 3 inches (7.6 cm) of clearance around the ventilation openings to prevent airflow restriction and overheating.

Do not stack switches or place switches side-by-side unless they are separated on all sides by at least 3 inches (7.6 cm) of clearance from each other.

Do not place any items on the top of the switch.

After the switch is mounted on the desk or shelf, do these tasks to complete the installation:

1.Power on the switch. See the ???Verifying Switch Operation??? section on page 3-6.

2.Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the switch getting started guide for instructions.

3.Connect to the front-panel ports. See the ???Connecting to the 10/100 and 10/100/1000 Ports??? section on page 2-18, the ???Connecting to SFP Modules??? section on page 2-19, and the ???Connecting to a Dual-Purpose Port??? section on page 2-22 to complete the installation.

For configuration instructions about using the command-line interface (CLI) setup program, go to Appendix C, ???Configuring the Switch with the CLI-Based Setup Program.???

Desk- or Shelf-Mounting (with Mounting Screws)

This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other Catalyst 2960 switches, see Chapter 2, ???Switch Installation (24- and 48-Port Switches).???

The switch can be secured to a desk or shelf with mounting screws. Follow these steps:

Step 1 Locate the screw template. You can use the template to align the mounting screw holes and also as a guide to make sure that you install the screws into the desk or shelf with proper clearance.

Step 2 Position the screw template on top of the desk or shelf so that the two side-by-side slots face the front of the desk or shelf, as shown in Figure 3-1. This ensures that the power cord faces the rear of the desk or shelf after the switch is installed.

Note Wait before you attach the screw template to the desk or shelf.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 3 Switch Installation (8-Port Switches)

Installing the Switch

Figure 3-1 Installing the Mounting Screws on Top of a Desk or Shelf

210096

2 Screws

Step 3 Peel the adhesive strip off the bottom of the screw template, and attach it to the top of the desk or shelf.

Step 4 Use a 0.144-inch (3.7 mm) or a #27 drill bit to drill a 1/2-inch (12.7 mm) hole in the three screw template slots.

Step 5 Insert three screws in the slots on the screw template, and tighten them until they touch the top of the screw template.

Step 6 Remove the screw template from the desk or shelf.

Step 7 Place the switch onto the mounting screws, and slide the switch forward until it locks in place, as shown in Figure 3-2.

Note We strongly recommend that you allow at least 3 inches (7.6 cm) of clearance around the ventilation openings to prevent airflow restriction and overheating.

Do not stack switches or place switches side-by-side unless they are separated on all sides with at least 3 inches (7.6 cm) of clearance from each other.

Do not place any items on the top of the switch.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 3 Switch Installation (8-Port Switches)

Installing the Switch

Figure 3-2 Mounting the Switch on Top of a Desk or Shelf

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1 Slides on this way 3 Desk or shelf

2 Screws

After the switch is mounted on the desk or shelf, do these tasks to complete the installation:

1.Power on the switch. See the ???Verifying Switch Operation??? section on page 3-6.

2.Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the switch getting started guide for instructions.

For configuration instructions about using the CLI setup program, go to Appendix C, ???Configuring the Switch with the CLI-Based Setup Program.???

Under the Desk- or Shelf-Mounting (with Mounting Screws)

This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other Catalyst 2960 switches, see Chapter 2, ???Switch Installation (24- and 48-Port Switches).???

Follow these steps to install the switch under a desk or shelf:

Step 1 Locate the screw template. The template is used to align the mounting screw holes and is also used as a guide to make sure the screws are installed under the desk or shelf with proper clearance.

Step 2 Position the screw template underneath the desk or shelf so that the two side-by-side slots face the front of the desk or shelf, as shown in Figure 3-3. This ensures that the power cord faces the rear of the desk or shelf after the switch is installed.

Step 3 Peel the adhesive strip off the bottom of the screw template, and attach it to the underside of the desk or shelf.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 3 Switch Installation (8-Port Switches)

Figure 3-4 Mounting the Switch Under a Desk or Shelf

5x 4x 3x

2 Screws

Installing the Switch

250147

After the switch is mounted under the desk or shelf, do these tasks to complete the installation:

1.Power on the switch. See the ???Verifying Switch Operation??? section on page 3-6.

2.Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the switch getting started guide for instructions.

For configuration instructions about using the CLI setup program, go to Appendix C, ???Configuring the Switch with the CLI-Based Setup Program.???

Catalyst 2960 Switch Hardware Installation Guide

Chapter 3 Switch Installation (8-Port Switches)

Installing the Switch

Wall-Mounting (with Mounting Screws)

This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other Catalyst 2960 switches, see Chapter 2, ???Switch Installation (24- and 48-Port Switches).???

The steps in this section show how to mount the switch with the front panel facing down (as shown in Figure 3-5 on page 3-12 and Figure 3-6 on page 3-13.)

Note Do not wall-mount the switch with its front panel facing up or sideways. According to safety regulations, wall-mount the switch with its front panel facing down to prevent airflow restriction and to provide easier access to the cables.

Follow the steps in this section to install the switch to a wall:

Step 1 Locate the screw template. The template is used to align the mounting screw holes.

Step 2 Position the screw template so that the two side-by-side slots face toward the floor, as shown in Figure 3-5.

For the best support of the switch and cables, make sure that you attach the switch securely to a wall stud or to a firmly attached plywood mounting backboard.

Step 3 Peel the adhesive strip off the bottom of the screw template.

Figure 3-5 Installing the Mounting Screws on a Wall

2 Screws

157828

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Chapter 3 Switch Installation (8-Port Switches)

Installing the Switch

Step 4 Attach the screw template to the wall.

Step 5 Use a 0.144-inch (3.7 mm) or a #27 drill bit to drill a 1/2-inch (12.7 mm) hole in the three screw template slots.

Step 6 Insert three screws in the slots on the screw template, and tighten until they touch the top of the screw template.

Step 7 Remove the screw template from the wall.

Step 8 Place the switch onto the mounting screws, and slide it down until it locks in place, as shown in Figure 3-6.

Figure 3-6 Installing the Switch On a Wall

1 Switch 3 Slides on this way

2 Screw

After the switch is mounted on the wall, do these tasks to complete the installation:

157829

1.Power on the switch. See the ???Verifying Switch Operation??? section on page 3-6.

2.Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the switch getting started guide for instructions.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 3 Switch Installation (8-Port Switches)

Installing the Switch

For configuration instructions about using the CLI setup program, go to Appendix C, ???Configuring the Switch with the CLI-Based Setup Program.???

Magnet Mounting

This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other Catalyst 2960 switches, see Chapter 2, ???Switch Installation (24- and 48-Port Switches).???

To mount a switch by using the magnet, follow these steps:

Step 1 Place one side of the magnet against the bottom of the switch, as shown in Figure 3-7.

Figure 3-7 Mounting the Switch with a Magnet

210097

Step 2 Mount the magnet and switch on a metal surface.

After the switch is attached to the mounting magnet, do these tasks to complete the installation:

1.Power on the switch. See the ???Verifying Switch Operation??? section on page 3-6.

2.Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the switch getting started guide for instructions.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 3 Switch Installation (8-Port Switches)

Installing the Switch

For configuration instructions about using the CLI setup program, go to Appendix C, ???Configuring the Switch with the CLI-Based Setup Program.???

Rack-Mounting

This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other Catalyst 2960 switches, see Chapter 2, ???Switch Installation (24- and 48-Port Switches).???

???This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

???When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack.

???If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack. Statement 1006

To install the switch in a 19-inch rack, follow the instructions described in these sections:

???Attaching Brackets to the Switch, page 3-15

???Mounting the Switch in a 19-Inch Rack, page 3-16

Attaching Brackets to the Switch

Figure 3-8 shows how to attach a 19-inch bracket to one side of the switch. Follow the same steps to attach the second bracket to the opposite side.

Figure 3-8 Attaching the 19-inch Brackets for Rack-Mounting

1 Phillips flat-head screw

Catalyst

2960

Series

210098

Catalyst 2960 Switch Hardware Installation Guide

Chapter 3 Switch Installation (8-Port Switches)

Installing the Switch

Mounting the Switch in a 19-Inch Rack

After the brackets are attached to the switch, insert the switch into the 19-inch rack, and align the bracket in the rack. Use either the 10-32 pan-head screws or the 12-24 pan-slotted screws to secure the switch in the rack, as shown in Figure 3-9.

Note We strongly recommend that you allow at least 1.75 inches (4 cm) of clearance above each switch in the rack.

Figure 3-9 Mounting the Switch in a 19-Inch Rack

1 Phillips machine screws

Catalyst

2960 Series

210100

After the switch is mounted in the rack, do these tasks to complete the installation:

1.Power on the switch. See the ???Verifying Switch Operation??? section on page 3-6.

2.Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the switch getting started guide for instructions.

For configuration instructions about using the CLI setup program, go to Appendix C, ???Configuring the Switch with the CLI-Based Setup Program.???

Wall-Mounting (with Rack-Mount Brackets)

To install the Catalyst 2960 8-port switches in a 19-inch rack requires an optional bracket kit that is not included with the switch. You can order a kit containing the 19-inch rack-mounting brackets and hardware from Cisco. The kit part number is RCKMNT-19-CMPCT=.

This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other Catalyst 2960 switches, see Chapter 2, ???Switch Installation (24- and 48-Port Switches).???

Catalyst 2960 Switch Hardware Installation Guide

Chapter 3 Switch Installation (8-Port Switches)

Installing the Switch

To mount the switch with brackets on a wall, follow these steps:

Step 1 Attach a 19-inch bracket to one side of the switch. Follow the same steps to attach the second bracket to the opposite side, as shown in Figure 3-10.

Step 2 Mount the switch with the front panel facing down, as shown in Figure 3-10.

For the best support of the switch and cables, make sure the switch is attached securely to wall studs or to a firmly attached plywood mounting backboard.

Do not wall-mount the switch with its front panel facing up or sideways according to safety regulations. Wall-mount the switch with its front panel facing down to prevent airflow restriction and to provide easier access to the cables.

Figure 3-10 Mounting the Switch on a Wall

1 2

200916

After the switch is mounted on the wall, do these tasks to complete the installation:

1.Power on the switch. See the ???Verifying Switch Operation??? section on page 3-6.

2.Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the switch getting started guide for instructions.

For configuration instructions about using the CLI setup program, go to Appendix C, ???Configuring the Switch with the CLI-Based Setup Program.???

Catalyst 2960 Switch Hardware Installation Guide

Chapter 3 Switch Installation (8-Port Switches)

Where to Go Next

If the default configuration is satisfactory, the switch needs no further configuration. You can use any of these management options to change the default configuration:

???Start the device manager, which is in the switch memory, to manage individual and standalone switches. The device manager is a web interface that offers quick configuration and monitoring. You can access the device manager from anywhere in your network through a web browser. For more information, see the device manager online help.

???Use the CLI from the console to configure the switch as a member of a cluster or as an individual switch. See the Catalyst 2960 Switch Software Configuration Guide and the Catalyst 2960 Switch Command Reference on Cisco.com for information on using the CLI with a Catalyst 2960 switch.

???Start an SNMP application such as the CiscoView application.

Catalyst 2960 Switch Hardware Installation Guide

C H A P T E R 4

Troubleshooting

The LEDs on the front panel provide troubleshooting information about the switch. They show failures in the power-on self-test (POST), port-connectivity problems, and overall switch performance. For a full description of the switch LEDs, see the ???LEDs??? section on page 1-12.

You can also get statistics from the browser interface, from the command-line interface (CLI), or from a Simple Network Management Protocol (SNMP) workstation. See the software configuration guide, the switch command reference guide on Cisco.com, or the documentation that came with your SNMP application for details.

This chapter describes these topics for troubleshooting problems:

???Diagnosing Problems, page 4-1

???Clearing the Switch IP Address and Configuration, page 4-5

???Locating the Switch Serial Number, page 4-6

Diagnosing Problems

The LEDs on the front panel provide troubleshooting information about the switch. They show POST failures, port-connectivity problems, and overall switch performance. You can also get statistics from the CLI or from an SNMP workstation. See the software configuration guide and the switch command reference on Cisco.com or the documentation that came with your SNMP application for more information.

This section includes these troubleshooting topics:

??????Verify Switch POST Results??? section on page 4-2

??????Monitor Switch LEDs??? section on page 4-2

??????Verify Switch Connections??? section on page 4-2

??????Monitor Switch Performance??? section on page 4-4

Catalyst 2960 Switch Hardware Installation Guide

Chapter 4 Troubleshooting

Diagnosing Problems

Verify Switch POST Results

As the switch powers on, it begins the POST, a series of tests that runs automatically to ensure that the switch functions properly. It might take several minutes for the switch to complete POST.

When the switch begins POST, the system LED slowly blinks green. When POST completes, the system LED blinks amber. If POST fails, the system LED remains amber. If POST completes successfully, the system LED rapidly blinks green.

Note POST failures are usually fatal. Contact your Cisco technical support representative if your switch does not pass POST.

Monitor Switch LEDs

You must have physical access to the switch to do this. Look at the port LEDs for troubleshooting information about the switch. See the ???LEDs??? section on page 1-12 for a description of the LED colors and their meanings.

Verify Switch Connections

Review these sections when troubleshooting switch connectivity problems:

???Bad or Damaged Cable, page 4-2

???Ethernet and Fiber Cables, page 4-3

???Link Status, page 4-3

???Transceiver Module Port Issues, page 4-3

???Port and Interface Settings, page 4-3

???Ping the End Device, page 4-4

???Spanning Tree Loops, page 4-4

Bad or Damaged Cable

Always look at the cable for marginal damage or failure. A cable might connect at the physical layer but then cause packet corruption because of subtle damage to its wiring or connectors. You can identify this situation because the port will have many packet errors, or the port constantly loses and regains link. In these situations:

???Change the copper or fiber-optic cable with a known, good cable if necessary.

???Look for broken or missing pins on cable connectors.

???Rule out any insufficient patch panel connections or media convertors between the source and the destination. If possible, bypass the patch panel or eliminate faulty media convertors, such as fiber-optic-to-copper convertors.

???Try using the cable in another port or interface to see if the problem also exists there.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 4 Troubleshooting

Diagnosing Problems

Ethernet and Fiber Cables

Make sure that you have the correct cable type for the connection:

???For Ethernet, use Category 3 copper cable for 10 Mb/s unshielded twisted pair (UTP) connections. Use either Category 5, Category 5e, or Category 6 UTP for 10/100 or 10/100/1000 Mb/s connections.

???For fiber-optic connectors, verify that you have the correct cable for the distance and port type. Make sure that the ports on the connected device match and that they use the same type of encoding, optical frequency, and fiber type. For more information about cabling, see Appendix A, ???Connector and Cable Specifications.???

???For copper connections, determine if a crossover cable was used when a straight-through cable was required or the reverse. Enable auto-MDIX on the switch, or replace the cable.

Link Status

Verify that both sides have link. A single broken wire or one shutdown port can cause one side to show link, but the other side does not have link.

A link LED does not guarantee that the cable is fully functional. The cable might have encountered physical stress that causes it to function at a marginal level. If the link light for the port does not come on:

???Connect the cable from the switch to a known, good device.

???Make sure that both ends of the cable are connected to the correct ports.

???Verify that both devices have power.

???Verify that you are using the correct cable type. See Appendix A, ???Connector and Cable Specifications.??? for more information.

???Look for loose connections. Sometimes a cable appears to be seated, but is not. Disconnect and then reconnect the cable.

Transceiver Module Port Issues

Use only Cisco small form-factor (SFP) modules on the switch. Each Cisco module has an internal serial EEPROM that is encoded with security information. This encoding provides a way for Cisco to identify and validate that the module meets the requirements for the switch. Look for these items:

???Bad or incorrect SFP module. Exchange the suspect module with a known, good module. Verify that this module supports this platform. See the ???Features??? section on page 1-1 for a list of supported SFP modules.

???Use the show interfaces privileged EXEC command to verify the port or module error-disabled, disabled, or shutdown status. Re-enable the port if necessary.

???Make sure that all you have properly cleaned and securely connected all fiber-optic connections.

Port and Interface Settings

An obvious but sometimes overlooked cause of port connectivity failure is a disabled port. Verify that the port or interface is not disabled or for some reason powered off. If a port or interface is manually shut down on one or the other side of the link, the link does not come up until you re-enable the port.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 4 Troubleshooting

Diagnosing Problems

Use the show interfaces privileged EXEC command to verify the port or interface error-disabled, disabled, or shutdown status on both sides of the connection. If necessary, re-enable the port or the interface.

Ping the End Device

Verify the end device connection by first pinging it from the directly connected switch, and then work your way back port by port, interface by interface, trunk by trunk, until you find the source of the connectivity issue. Make sure that each switch can identify the end device MAC address in its Content-Addressable Memory (CAM) table.

Spanning Tree Loops

Spanning Tree Protocol (STP) loops can cause serious performance issues that might appear to be port or interface problems. In this situation, the switch bandwidth is used repeatedly by the same frames, crowding out legitimate traffic.

A unidirectional link can cause loops. This occurs when the traffic that the switch sends is received by its neighbor, but the switch does not receive the traffic that is sent from the neighbor. A broken fiber-optic cable, other cabling, or a port issue could cause this one-way communication.

You can enable the UniDirectional Link Detection (UDLD) protocol on the switch to help identify difficult-to-find unidirectional link problems. UDLD supports a normal mode of operation (the default) and an aggressive mode. In normal mode, UDLD detects unidirectional links because of incorrectly connected interfaces on fiber-optic connections. In aggressive mode, UDLD also detects unidirectional links caused by one-way traffic on fiber-optic and twisted-pair links and by incorrectly connected interfaces on fiber-optic links. For information about enabling UDLD on the switch, see the ???Understanding UDLD??? section in the software configuration guide.

Monitor Switch Performance

Review these sections when you troubleshoot switch performance problems:

???Speed, Duplex, and Autonegotiation, page 4-4

???Autonegotiation and NIC Cards, page 4-5

???Cabling Distance, page 4-5

Speed, Duplex, and Autonegotiation

If the port statistics show a large number of alignment errors, frame check sequence (FCS), or late-collisions errors, a speed or duplex mismatch might be the problem.

A common issue with speed and duplex occurs when the duplex settings are mismatched between two switches, between a switch and a router, or between the switch and a workstation or server. This can happen when you manually set the speed and duplex or because of autonegotiation issues between the two devices.

These circumstances can result in a mismatch:

???A manually set speed or duplex parameter is different from the manually set speed or duplex parameter on the connected port.

???A port is set to autonegotiate, and the connected port is set to full duplex with no autonegotiation.

Catalyst 2960 Switch Hardware Installation Guide

Chapter 4 Troubleshooting

Clearing the Switch IP Address and Configuration

To maximize switch performance and to ensure a link, follow one of these guidelines when you set or change the settings for duplex and speed:

???Let both ports autonegotiate both speed and duplex.

???Manually set the speed and duplex parameters for the ports on both ends of the connection.

???If a remote device does not autonegotiate, configure the duplex settings on the two ports to match. The speed parameter can adjust itself even if the connected port does not autonegotiate.

Autonegotiation and NIC Cards

Problems sometimes occur between the switch and third-party network interface cards (NICs). By default, the switch ports and interfaces are set to autonegotiate. It is common for devices such as laptop computers or other devices to also be set to autonegotiate, yet sometimes autonegotiation issues occur.

To troubleshoot autonegotiation problems, try to manually set both sides of the connection. If this does not solve the problem, the firmware or software on your NIC card might be causing the problem. Upgrade the NIC card driver to the latest version available from the manufacturer.

Cabling Distance

If the port statistics show excessive FCS, late-collision, or alignment errors, verify that the cable distance from the switch to the connected device meets the recommended guidelines. See the Appendix A, ???Cable and Adapter Specifications.??? for cabling guidelines.

Clearing the Switch IP Address and Configuration

If you have configured a new switch with an incorrect IP address, you can clear the IP address that is configured on the switch.

Caution This procedure clears the IP address and all configuration information that is stored on the switch. Do not follow this procedure unless you want to completely reconfigure the switch.

Follow these steps to return your switch to the factory default settings:

1.Press and hold the Mode button (see Figure 1-17 on page 1-13).

The switch LEDs begin blinking after about 2 seconds. If the switch is not configured, the LEDs above the mode button turn green. You can omit this step and run Express Setup to configure the switch.

2.Continue holding down the Mode button. The LEDs stop blinking after an additional 8 seconds, and then the switch reboots.

The switch now behaves like an unconfigured switch. You can configure the switch by using Express Setup as described in the switch getting started guide that is included with the switch.

You can also configure the switch by using the CLI setup procedure described in Appendix C, ???Configuring the Switch with the CLI-Based Setup Program.???

Catalyst 2960 Switch Hardware Installation Guide

A P P E N D I X A

Connector and Cable Specifications

This appendix describes the Catalyst 2960 switch ports and the cables and adapters that you use to connect the switch to other devices and includes these sections:

???Connector Specifications, page A-1

???Cable and Adapter Specifications, page A-4

Connector Specifications

These sections describe the connectors used with the Catalyst 2960 switch:

???10/100/1000 Ports, page A-1

???SFP Module Ports, page A-3

???Dual-Purpose Ports, page A-3

???Console Port, page A-4

10/100/1000 Ports

The 10/100/1000 Ethernet ports on the Catalyst 2960 switch use standard RJ-45 connectors. Figure A-1 shows the pinout.

Note The auto-MDIX feature is enabled by default. For configuration information for this feature, see the switch software configuration guide or the switch command reference.

Connecting to 10BASE-T- and 100BASE-TX-Compatible Devices

When connecting the ports to 10BASE-T- and 100BASE-TX-compatible devices, such as servers, workstations, and routers, you can use a two or four twisted-pair, straight-through cable wired for 10BASE-T and 100BASE-TX. Figure A-5 shows the two twisted-pair, straight-through cable schematics. Figure A-7 shows the four twisted-pair, straight-through cable schematics.

Catalyst 2960 Switch Hardware Installation Guide

Appendix A Connector and Cable Specifications

Connector Specifications

When connecting the ports to 10BASE-T- and 100BASE-TX-compatible devices, such as switches or repeaters, you can use a two or four twisted-pair, crossover cable. Figure A-6 shows the two twisted-pair, crossover cable schematics. Figure A-8 shows the four twisted-pair, crossover cable schematics.

You can use Category 3, 4, or 5 cabling when connecting to 10BASE-T-compatible devices. You must use Category 5 cabling when connecting to 100BASE-TX-compatible devices.

Connecting to 1000BASE-T Devices

When connecting the ports to 1000BASE-T devices, such as servers, workstations, and routers, you must use a four twisted-pair, Category 5, straight-through cable wired for 10BASE-T, 100BASE-TX, and 1000BASE-T. Figure A-7 shows the straight-through cable schematics.

When connecting the ports to other devices, such as switches or repeaters, you must use a four twisted-pair, Category 5 or higher crossover cable. Figure A-8 shows the crossover cable schematics.

Note Be sure to use a four twisted-pair, Category 5 cable when connecting to a 1000BASE-T-compatible device.

Note Use a straight-through cable to connect two ports only when one port is designated with an X. Use a crossover cable to connect two ports when both ports are designated with an X or when both ports do not have an X.

Figure A-1 10/100/1000 Port Pinouts

Pin Label

1TP0+

2TP0-

3TP1+

4TP2+

5TP2-

6TP1-

7TP3+

8TP3-

1 2 3 4 5 6 7 8

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Catalyst 2960 Switch Hardware Installation Guide

Appendix A Connector and Cable Specifications

Connector Specifications

SFP Module Ports

The Catalyst 2960 switch uses SFP modules for fiber-optic and copper uplink ports. See the

Catalyst 2960 switch release notes for a list of supported SFP modules.

Figure A-2 Fiber-Optic SFP Module LC Connector

58476

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

Figure A-3

Dual-Purpose Ports

The Ethernet port on a dual-purpose port uses standard RJ-45 connectors. Figure A-4 shows the pinouts.

The SFP module slot on a dual-purpose port uses SFP modules for fiber-optic and copper uplink ports. See the Catalyst 2960 switch release notes for a list of supported SFP modules.

Note The auto-MDIX feature is enabled by default. For configuration information for this feature, see the switch software configuration guide or the switch command reference.

Catalyst 2960 Switch Hardware Installation Guide

Appendix A Connector and Cable Specifications

Cable and Adapter Specifications

Figure A-4 10/100/1000 Port Pinouts

Pin Label

1TP0+

2TP0-

3TP1+

4TP2+

5TP2-

6TP1-

7TP3+

8TP3-

Console Port

1 2 3 4 5 6 7 8

60915

The console port uses an 8-pin RJ-45 connector, which is described in Table A-2 and Table A-3. The supplied RJ-45-to-DB-9 adapter cable is used to connect the console port of the switch to a console PC. You need to provide a RJ-45-to-DB-25 female DTE adapter if you want to connect the switch console port to a terminal. You can order a kit (part number ACS-DSBUASYN=) containing that adapter from Cisco. For console port and adapter pinout information, see Table A-2 and Table A-3.

Cable and Adapter Specifications

These sections describe the cables and adapters used with Catalyst 2960 switches:

???SFP Module Cable Specifications, page A-4

???Two Twisted-Pair Cable Pinouts, page A-6

???Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports, page A-6

???Crossover Cable and Adapter Pinouts, page A-7

SFP Module Cable Specifications

Table A-1 lists the cable specifications for the fiber-optic SFP module connections. Each port must match the wave-length specifications on the other end of the cable, and for reliable communications, the cable must not exceed the required cable length. Copper 1000BASE-T SFP transceivers use standard four twisted-pair, Category 5 or greater cable at lengths up to 328 feet (100 meters).

Catalyst 2960 Switch Hardware Installation Guide

Appendix A Connector and Cable Specifications

Cable and Adapter Specifications

Two Twisted-Pair Cable Pinouts

Figure A-5 and Figure A-6 show the schematics of two twisted-pair cables for connecting to 10BASE-T- and 100BASE-TX-compatible devices.

Figure A-5

Switch

3 TD+

6TD???

1RD+

2RD???

Figure A-6

Switch

3 TD+

6TD???

1RD+ 2 RD???

Two Twisted-Pair Straight-Through Cable Schematic

Router or PC

3 RD+ 6 RD???

Two Twisted-Pair Crossover Cable Schematic

Switch

3 TD+

6 TD???

Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports

Figure A-7 and Figure A-8 show the schematics of four twisted-pair cables for 10/100/1000 ports on Catalyst 2960 switches.

Figure A-7

Switch

1TPO+

2TPO-

3TP1+

6TP1-

4TP2+

5TP2-

7TP3+

8TP3-

Four Twisted-Pair Straight-Through Cable Schematic for 10/100/1000 Ports

Router or PC

1 TP1+

2 TP1-

3 TPO+

6 TPO-

Catalyst 2960 Switch Hardware Installation Guide

Appendix A Connector and Cable Specifications

Cable and Adapter Specifications

Figure A-8

Switch

1TPO+

2TPO-

3TP1+

6TP1-

4TP2+

5TP2-

7TP3+

8TP3-

Four Twisted-Pair Crossover Cable Schematics for 10/100/1000 Ports

Switch

1 TP0+

2 TP0-

3 TP1+

6 TP1-

Crossover Cable and Adapter Pinouts

This section describes how to identify a crossover cable and also describes the adapter pinouts.

Identifying a Crossover Cable

To identify a crossover cable, compare the two modular ends of the cable. Hold the cable ends side-by-side, with the tab at the back. The wire connected to the pin on the outside of the left plug should be a different color from the wire connected to the pin on the inside of the right plug. (See Figure A-9.)

Figure A-9 Identifying a Crossover Cable

Pin 1 on one connector and pin 1 on the other connector should be different colors.

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Catalyst 2960 Switch Hardware Installation Guide

Appendix B Technical Specifications

Table B-2 Catalyst 2960-24-S, Catalyst 2960-24TC-S, and Catalyst 2960-48TC-S Switch Specifications

Power Requirements

AC input voltage

Power consumption Power rating

100 to 240 VAC (autoranging)

1.3 to 0.8 A, 50 to 60 Hz

30 W, 103 BTUs per hour

0.05 KVA

Physical Dimensions

Dimensions (H x D x W) 1.73 x 9.3 x 17.5 in. (4.39 x 23.62 x 44.45 cm)

Table B-3 Catalyst 2960-24PC-L and Catalyst 2960-24LT-L Switch Specifications

Power Requirements

15.4 W per port maximum, 370 W switch maximum (Catalyst 2960-24PC-L switch) 15.4 W per port maximum, 124 W switch maximum (Catalyst 2960-24LT-L switch)

Physical Dimensions

1. The power consumption values are for the switch input power.

Table B-4 Catalyst 2960-24TC-L and Catalyst 2960-24TT-L Switch Specifications

Power Requirements

AC input voltage

DC input voltage for RPS 2300 DC input voltage for RPS 675 Power consumption

Power rating

100 to 240 VAC (autoranging)

1.3 to 0.8 A, 50 to 60 Hz

+12 V @5 A

+12 V@5 A

30 W, 103 BTUs per hour

0.05 KVA

Catalyst 2960 Switch Hardware Installation Guide

Appendix B Technical Specifications

Table B-7 Catalyst 2960-8TC-L, Catalyst 2960G-8TC-L, and Catalyst 2960PD-8TT-L Switch Specifications

Power Requirements

AC input voltage

DC input voltage Power consumption

Power rating

100 to 240 VAC (autoranging)

0.5 to 0.25 A, 50 to 60 Hz (Catalyst 2960-8TC-L) 0.8 to 0.4 A, 50 to 60 Hz (Catalyst 2960G-8TC-L)

Unspecified when AC power adapter installed (Catalyst 2960PD-8TT-L)

48 VDC, 0.3A (Catalyst 2960PD-8TT-L)

20 W, 68 BTUs per hour (Catalyst 2960-8TC-L) 30 W, 102 BTUs per hour (Catalyst 2960G-8TC-L) 11W, 38 BTUs per hour (Catalyst 2960PD-8TT-L1)

0.035 KVA (Catalyst 2960-8TC-L and Catalyst 2960PD-8TT-L)

0.05 KVA (Catalyst 2960G-8TC-L)

11 W (Catalyst 2960PD-8TT-L)

Physical Dimensions

Dimensions (H x D x W) 1.73 x 6.4 x 10.6 in. (4.4 x 16.3 x 26.9 cm) (Catalyst 2960-8TC-L and Catalyst 2960PD-8TT-L)

1.73x 8.1 x 10.6 in. (4.4 x 20.5 x 26.9 cm) (Catalyst 2960G-8TC-L)

1.The power consumption for the Catalyst 2960PD-8TT-L switch is for the switch system and does not refer to power consumption with the optional AC power adapter installed.

Catalyst 2960 Switch Hardware Installation Guide

A P P E N D I X C

Configuring the Switch with the CLI-Based Setup Program

This appendix provides a command-line interface (CLI)-based setup procedure for a standalone switch. For product overview information, see Chapter 1, ???Product Overview.???

Before you connect the switch to a power source, review the safety warnings in Chapter 2, ???Switch Installation (24- and 48-Port Switches),??? and Chapter 3, ???Switch Installation (8-Port Switches).???

For installation procedures for mounting your switch, connecting to the switch ports, or connecting to the small form-factor pluggable (SFP) modules, see Chapter 2, ???Switch Installation (24- and 48-Port Switches),??? and Chapter 3, ???Switch Installation (8-Port Switches).???

These steps describe how to do an installation:

1.Accessing the CLI, page C-1

2.Connecting to the Console Port, page C-2

3.Starting the Terminal Emulation Software, page C-3

4.Connecting to a Power Source, page C-4

5.Entering the Initial Configuration Information, page C-4

Accessing the CLI

For an unconfigured switch, you can access the CLI through Express Setup or through the console port.

Accessing the CLI Through Express Setup

You can access the CLI on an unconfigured switch by placing the switch in Express Setup mode and then connecting an Ethernet port of the switch to the Ethernet port of your PC or workstation. To put the switch into Express Setup mode, follow the steps described in the Catalyst 2960 Switch Getting Started Guide for powering on the switch and using Express Setup.

After the switch is in Express Setup mode, open a Telnet session to the switch by using the IP address 10.0.0.1. Enter the setup user EXEC command. See these sections in this chapter to configure the switch by using the CLI:

???Entering the Initial Configuration Information, page C-4

???Completing the Setup Program, page C-5

Catalyst 2960 Switch Hardware Installation Guide

Appendix C Configuring the Switch with the CLI-Based Setup Program

Connecting to the Console Port

After you have entered the configuration information for the switch, save it to flash memory by using the write memory privileged EXEC command.

Note While in Express Setup mode, the IP address 10.0.0.1 remains active on the switch until you enter the write memory command. You lose the Telnet connection after entering the write memory command.

For more information about using the CLI, refer to the command reference for this release.

Accessing the CLI Through the Console Port

You can access the CLI on a configured or unconfigured switch by connecting the console port of the switch to the serial port on your PC or workstation and accessing the switch through a Telnet session.

To access the switch through the console port, follow these steps:

???Connecting to the Console Port, page C-2

???Starting the Terminal Emulation Software, page C-3

???Connecting to a Power Source, page C-4

???Entering the Initial Configuration Information, page C-4

See the ???Verifying Package Contents??? section on page 2-6 for a list of what ships with your switch.

Note You need to provide the Category 5 or higher straight-through cables to connect the switch ports to other Ethernet devices.

Note The auto-MDIX feature is enabled by default. For configuration information for this feature, see the switch software configuration guide or the switch command reference.

Connecting to the Console Port

You can use the console port to perform the initial configuration. To connect the switch console port to a PC, use the supplied RJ-45-to-DB-9 adapter cable.

Follow these steps to connect the PC or terminal to the switch:

Step 1 Using the supplied RJ-45-to-DB-9 adapter cable, insert the RJ-45 connector into the console port on the rear of a switch, as shown in Figure C-1.

Catalyst 2960 Switch Hardware Installation Guide

Appendix C Configuring the Switch with the CLI-Based Setup Program

Starting the Terminal Emulation Software

Figure C-1 Connecting a Switch to a PC

137088

1 Catalyst 2960 switch 3 RJ-45-to-DB-9 adapter cable

2 Power cord

Step 2 Attach the DB-9 female DTE of the adapter cable to a PC serial port, or attach an appropriate adapter to the terminal.

Starting the Terminal Emulation Software

Before you power on the switch, start the terminal emulation session so that you can see the output display from the power-on self-test (POST). The terminal-emulation software???frequently a PC application such as Hyperterminal or Procomm Plus???makes communication between the switch and your PC or terminal possible.

Step 1 Start the terminal-emulation program and open a session if you are using a PC or terminal.

Step 2 Start a terminal-emulation session.

Step 3 Configure the baud rate and character format of the PC or terminal to match these console port default characteristics:

???9600 baud

???8 data bits

???1 stop bit

???No parity

???None (flow control)

Catalyst 2960 Switch Hardware Installation Guide

Appendix C Configuring the Switch with the CLI-Based Setup Program

Connecting to a Power Source

Follow these steps to connect to a power source:

Step 1 Connect one end of the supplied AC power cord to the power connector on a switch rear panel. See Figure C-1.

Step 2 Connect the other end of the power cable to a grounded AC outlet.

Note If you are connecting the switch to a Cisco redundant power system (RPS), refer to the documentation that shipped with your RPS.

As the switch powers on, it begins the power-on self test (POST), a series of tests that runs automatically to ensure that the switch functions properly. POST lasts approximately 1 minute. When the switch begins POST, the System, RPS, Status, Duplex, and Speed LEDs turn green. The System LED blinks green, and the other LEDs remain solid green.

POST failures are usually fatal. Call Cisco technical support representative if your switch fails POST.

If you started the terminal emulation program before you powered on your switch, the PC or terminal displays the bootloader sequence. You need to press Enter to display the setup program prompt.

Entering the Initial Configuration Information

To set up the switch, you need to complete the setup program, which runs automatically after the switch is powered up. You must assign an IP address and other configuration information necessary for the switch to communicate with the local routers and the Internet. This information is also required if you plan to use the Network Assistant to configure and manage the switch.

IP Settings

You need this information from your network administrator before you complete the setup program:

???Switch IP address

???Subnet mask (IP netmask)

???Default gateway (router)

???Enable secret password

???Enable password

???Telnet password

Catalyst 2960 Switch Hardware Installation Guide

Appendix C Configuring the Switch with the CLI-Based Setup Program

Entering the Initial Configuration Information

Step 9 Enter Y to configure the switch as the cluster command switch. Enter N to configure it as a member switch or as a standalone switch.

If you enter N, the switch appears as a candidate switch in the Network Assistant GUI. You can configure the switch as a command switch later through the CLI, the device manager, or the Network Assistant application. To configure it later, enter no.

Would you like to enable as a cluster command switch? [yes/no]: no

You have now completed the initial configuration of the switch, and the switch displays its initial configuration. This is an example of output that appears:

The following configuration command script was created: hostname switch1

enable secret 5 $1$Ulq8$DlA/OiaEbl90WcBPd9cOn1 enable password enable_password

line vty 0 15

password terminal-password no snmp-server

no ip routing

interface Vlan1 no shutdown

ip address 10.4.120.106 255.0.0.0

interface FastEthernet0/1

interface FastEthernet0/2

interface FastEthernet0/3

...<output abbreviated>

interface GigabitEthernet0/28

end

Step 10 These choices appear:

[0]Go to the IOS command prompt without saving this config.

[1]Return back to the setup without saving this config.

[2]Save this configuration to nvram and exit.

If you want to save the configuration and use it the next time the switch reboots, save it in NVRAM by selecting option 2.

Enter your selection [2]:2

Make your selection, and press Return.

After you complete the setup program, the switch can run the default configuration that you created. If you want to change this configuration or want to perform other management tasks, use one of these tools:

???Command-line interface (CLI)

???Network Assistant (for one or more switches)

Catalyst 2960 Switch Hardware Installation Guide