Cisco WS-C2960+24LC-S User Manual

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Catalyst 2960 Switch Hardware

Installation Guide

March 2010

Revised: April 2013

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Text Part Number: OL-7075-09

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

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

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

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

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

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

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

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

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

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Catalyst 2960 Switch Hardware Installation Guide

						C O N T E N T S
		Preface vii
		Product Overview
C H A P T E R 1		Product Overview		1-1
		Features	1-1
		Front Panel Description			1-4
		Catalyst 2960 Switch 24and 48-Port Switches					1-4
		Catalyst 2960-24-S, 2960-Plus 24TC-S, 2960-24TC-S, 2960-Plus 48TC-S, 2960-48TC-S, and
		2960-48TT-S Switches				1-5
		Catalyst 2960-Plus 24PC-L, 2960-24PC-L, 2960-Plus 24PC-S, 2960-24PC-S, 2960-Plus 24LC-L,
		2960-Plus 24LC-S, 2960-24LC-S, 2960-Plus 24TC-L, 2960-24TC-L, 2960-Plus 48TC-L,
		2960-48TC-L, 2960-24LT-L, 2960-24TT-L, 2960-48TT-L, 2960-Plus 48PST-L, 2960-48PST-L,
		2960-Plus 48PST-S, and 2960-48PST-S Switches						1-6
		Catalyst 2960G-24TC-L and Catalyst 2960G-48TC-L Switches 1-9
		Catalyst 2960 8-Port Switches 1-9
		Catalyst 2960PD-8TT-L Switch 1-9
		Catalyst 2960-8TC-S, Catalyst 2960-8TC-L, and Catalyst 2960G-8TC -L Switches 1-10
		10/100 Ports		1-11
		10/100/1000 Ports			1-11
		PoE Ports (Only Catalyst 2960 PoE Switches) 1-12
		SFP Module Slots			1-13
		Dual-Purpose Port			1-13
		Power Input Port (Catalyst 2960PD-8TT-L Switch)					1-14
		LEDs	1-14
		System LED 1-15
		RPS LED		1-16
		Port LEDs and Modes				1-16
		Dual-Purpose Port LEDs				1-18
		Cable Guard for the Catalyst 2960 8-Port Switches						1-19
		Rear Panel Description			1-19
		Internal Power Supply 1-20
		Cisco RPS 1-20
		Cisco RPS 2300			1-20
		Cisco RPS 675			1-21
		Console Port		1-21
		Security Slots		1-21
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2-21

2-20

2-18

2-19

2-17

2-16

2-15

2-14

Ports

2-13

2-12

2-11

2-10

Contents

	Management Options	1-22
	Network Configurations		1-22
	Switch Installation (24and 48-Port Switches) 2-1
C H A P T E R 2	Switch Installation (24and 48-Port Switches) 2-1
	Preparing for Installation 2-1
	Warnings 2-2
	Guidelines for Particulate Matter 2-4
	Installation Guidelines		2-4
	Box Contents 2-5
	Tools and Equipment		2-5
	Verifying Switch Operation		2-5
	Installing the Switch	2-6

Rack-Mounting 2-6

Removing Screws from the Switch 2-7

Attaching Brackets to the Catalyst 2960 Switch 2-7

Mounting the Switch in a Rack

Attaching the Cable Guide

Wall-Mounting 2-11

Attaching the Brackets to the Switch for Wall-Mounting 2-12

Attaching the RPS Connector Cover

Mounting the Switch on a Wall

Tableor Shelf-Mounting 2-14

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

Installing and Removing SFP Modules

Installing SFP Modules

Removing SFP Modules

Connecting to SFP Modules 2-18

Connecting to Fiber-Optic SFP Modules

Connecting to 1000BASE-T SFP Modules

Connecting to a Dual-Purpose Port

Where to Go Next

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Contents

C H A P T E R 3	Switch Installation (8-Port Switches) 3-1
	Preparing for Installation		3-1
	Warnings 3-1
	Installation Guidelines		3-3
	Equipment That You Supply 3-4
	Box Contents 3-5
	Tools and Equipment		3-5
	Verifying Switch Operation		3-5
	Installing the Switch	3-5
	Deskor Shelf-Mounting (without Mounting Screws) 3-6
	Deskor Shelf-Mounting (with Mounting Screws) 3-7
	Under the Deskor Shelf-Mounting (with Mounting Screws) 3-8
	Wall-Mounting (with Mounting Screws) 3-11
	Magnet Mounting	3-14

	Rack-Mounting 3-15
	Attaching Brackets to the Switch				3-15
	Mounting the Switch in a 19-Inch Rack					3-16
	Wall-Mounting (with Rack-Mount Brackets)					3-16
	Where to Go Next	3-18
	Troubleshooting 4-1
C H A P T E R 4	Troubleshooting 4-1
	Diagnosing Problems	4-1
	Verify Switch POST Results		4-2
	Monitor Switch LEDs 4-2
	Verify Switch Connections		4-2
	Bad or Damaged Cable		4-2
	Ethernet and Fiber Cables			4-3
	Link Status	4-3
	Transceiver Module Port Issues				4-3
	Port and Interface Settings			4-4
	Ping the End Device		4-4
	Spanning Tree Loops		4-4

Monitor Switch Performance 4-4

Speed, Duplex, and Autonegotiation	4-4
Autonegotiation and NIC Cards 4-5
Cabling Distance 4-5
Clearing the Switch IP Address and Configuration 4-5
Locating the Switch Serial Number 4-6
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Contents

A P P E N D I X A		Technical Specifications		A-1
		Connector and Cable Specifications
A P P E N D I X	B	Connector and Cable Specifications				B-1
		Connector Specifications		B-1
		10/100/1000 Ports		B-1
		Connecting to 10BASE-T- and 100BASE-TX-Compatible Devices B-1
		Connecting to 1000BASE-T Devices						B-2
		SFP Module Ports		B-3
		Dual-Purpose Ports		B-3
		Console Port	B-4
		Cable and Adapter Specifications B-4
		SFP Module Cable Specifications				B-4
		Two Twisted-Pair Cable Pinouts				B-6
		Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports							B-6
		Crossover Cable and Adapter Pinouts					B-7
		Identifying a Crossover Cable B-7
		Adapter Pinouts		B-8
		Configuring the Switch with the CLI-Based Setup Program
A P P E N D I X	C	Configuring the Switch with the CLI-Based Setup Program							C-1
		Accessing the CLI	C-1
		Accessing the CLI Through Express Setup						C-1
		Accessing the CLI Through the Console Port C-2
		Connecting to the Console Port			C-3
		Starting the Terminal Emulation Software					C-3
		Connecting to a Power Source			C-4
		Entering the Initial Configuration Information						C-4
		IP Settings	C-5
		Completing the Setup Program				C-5

I N D E X

Catalyst 2960 Switch Hardware Installation Guide

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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.

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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 guide. The EMC regulatory statements are also included in that guide.

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 1-4

•Rear Panel Description, page 1-19

•Management Options, page 1-22

Features

You can deploy the 24and 48-port Catalyst 2960 switches as backbone switches, aggregating 10BASE-T, 100BASE-TX, and 1000BASE-T Ethernet traffic from other network devices. The Catalyst 2960 8-port 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.

Table 1-1		Catalyst 2960 Switch Model Descriptions

			Supported
	Switch Model		Software Image	Description

	Catalyst 2960-8TC-S		LAN-Lite	8 10/100BASE-TX Ethernet ports and 1 dual-purpose port
				(1 10/100/1000BASE-T copper port and 1 small form-factor pluggable
				[SFP] module slot); (no fan or RPS port)

	Catalyst 2960-24-S		LAN-Lite	24	10/100BASE-TX Ethernet ports (no RPS port or SFP module slot)

	Catalyst 2960-Plus 24TC-S		LAN-Lite	24	10/100BASE-TX Ethernet ports and 2 dual-purpose ports (no RPS port)

	Catalyst 2960-24TC-S		LAN-Lite	24	10/100BASE-TX Ethernet ports and 2 dual-purpose ports (no RPS port)

	Catalyst 2960-Plus 48TC-S		LAN-Lite	48	10/100BASE-TX Ethernet ports and 2 dual-purpose ports (no RPS port)

	Catalyst 2960-48TC-S		LAN-Lite	48	10/100BASE-TX Ethernet ports and 2 dual-purpose ports (no RPS port)

	Catalyst 2960-48TT-S		LAN Lite	48	10/100BASE-TX ports and 2 10/100/1000 ports (no RPS port or
				SFP module slot)

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Chapter 1 Product Overview

Features

Table 1-1	Catalyst 2960 Switch Model Descriptions (continued)

		Supported
Switch Model		Software Image	Description

Catalyst 2960-Plus 48PST-S		LAN-Lite	48 10/100B SE-TX PoE ports, 2 10/100/1000 ports, and 2 SFP module slots

Catalyst 2960-48PST-S		LAN-Lite	48 10/100BASE-TX PoE ports, 2 10/100/1000 ports, and 2 SFP module slots

Catalyst 2960-Plus 24PC-S		LAN-Lite	24	10/100BASE-TX PoE ports and 2 dual-purpose ports

Catalyst 2960-24PC-S		LAN-Lite	24	10/100BASE-TX PoE ports and 2 dual-purpose ports

Catalyst 2960-Plus 24LC-S		LAN-Lite	24	10/100BASE-TX ports (8 of which are PoE) and 2 dual-purpose ports

Catalyst 2960-24LC-S		LAN-Lite	24	10/100BASE-TX ports (8 of which are PoE) and 2 dual-purpose ports

Catalyst 2960-8TC-L		LAN-Base	8 10/100BASE-TX Ethernet ports and 1 dual-purpose port (no fan or
			RPS port)

Catalyst 2960G-8TC-L		LAN-Base	7 10/100/100BASE-TX Ethernet ports and 1 dual-purpose port (no fan or
			RPS port)

Catalyst 2960PD-8TT-L		LAN-Base	8 10/100BASE-TX Ethernet ports and 1 10/100/1000 port that receives
			power (no fan, RPS port, or SFP module slot)

Catalyst 2960-24LT-L		LAN-Base	24	10/100BASE-TX ports, 8 of which are Power over Ethernet (PoE), and
			2 10/100/1000 ports (no SFP module slot)

Catalyst 2960-Plus 24PC-L		LAN-Base	24	10/100BASE-TX PoE ports and 2 dual-purpose ports

Catalyst 2960-24PC-L		LAN-Base	24	10/100BASE-TX PoE ports and 2 dual-purpose ports

Catalyst 2960-Plus 24TC-L		LAN-Base	24	10/100BASE-TX Ethernet ports and 2 dual-purpose ports

Catalyst 2960-24TC-L		LAN-Base	24	10/100BASE-TX Ethernet ports and 2 dual-purpose ports

Catalyst 2960G-24TC-L		LAN-Base	20	10/100/1000BASE-T Ethernet ports and 4 dual-purpose ports

Catalyst 2960-24TT-L		LAN-Base	24	10/100BASE-TX Ethernet ports and 2 10/100/1000BASE-T copper
			uplink ports (no SFP module slot)

Catalyst 2960-Plus 48PST-L		LAN-Base	48 10/100BASE-TX PoE ports, 2 10/100/1000BASE-T copper ports, and
			2 SFP module slots

Catalyst 2960-48PST-L		LAN-Base	48	10/100BASE-TX PoE ports, 2 10/100/1000BASE-T copper ports, and
			2 SFP module slots

Catalyst 2960-Plus 48TC-L		LAN-Base	48	10/100BASE-TX Ethernet ports and 2 dual-purpose ports

Catalyst 2960-48TC-L		LAN-Base	48	10/100BASE-TX Ethernet ports and 2 dual-purpose ports

Catalyst 2960G-48TC-L		LAN-Base	44	10/100/1000BASE-T Ethernet ports and 4 dual-purpose ports

Catalyst 2960-48TT-L		LAN-Base	48	10/100BASE-TX Ethernet ports and 2 10/100/1000BASE-T copper
			uplink ports (no SFP module slot)

Catalyst 2960-Plus 24LC-L		LAN-Base	24	10/100BASE-TX ports (8 of which are PoE) and 2 dual-purpose ports

The Catalyst 2960-8TC-S, 2960-8TC-L, 2960G-8TC-L, and 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 “Catalyst 2960 8-Port Switches” section on page 1-9 for more information. See Chapter 3, “Switch Installation (8-Port Switches),” for the installation instructions for these switch models.

Catalyst 2960 Switch Hardware Installation Guide

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Chapter 1 Product Overview

Features

These PoE switches comply with Cisco prestandard PoE and IEEE 802.3af:

•Catalyst 2960-24LC-S

•Catalyst 2960-Plus 24LC-S

•Catalyst 2960-Plus 24LC-L

•Catalyst 2960-24LT-L

•Catalyst 2960-24PC-L

•Catalyst 2960-Plus 24PC-L

•Catalyst 2960-24PC-S

•Catalyst 2960-Plus 24PC-S

•Catalyst 2960-48PST-L

•Catalyst 2960-Plus 48PST-L

•Catalyst 2960-48PST-S

•Catalyst 2960-Plus 48PST-S

These are the SFP modules supported by the switches:

•1000BASE-CWDM

•1000BASE-BX

•1000BASE-LX/LH

•1000BASE-SX

•1000BASE-T

•1000BASE-ZX

•100BASE-BX

•100BASE-FX

•100BASE-LX

The Catalyst 2960-24PC-L, 2960-Plus 24PC-L, 2960-24PC-S, 2960-Plus 24PC-S, 2960-24LC-S,2960-Plus 24LC-S, 2960-Plus 24LC-L, 2960-24TC-L, 2960-Plus 24TC-L, 2960-48TC-L, 2960-Plus 48TC-L, 2960-48PST-L, 2960-Plus 48PST-L, 2960-48PST-S, 2960-Plus 48PST-S, 2960G-24TC-L, and 2960G-48TC-L switches support all the SFP modules.

The Catalyst 2960-8TC-S, 2960-24TC-S, 2960-Plus 24TC-S, 2960-48TC-S, and 2960-Plus 48TC-S switches support only 1000BASE-LX/LH, 1000BASE-SX, and 100BASE-FX SFP modules.

The Catalyst 2960-8TC-L, 2960G-8TC-L, and 2960-8TC-S switches do not support the 1000BASE-T or GLC-GE-100FX 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 operate at 10, 100, or 1000 Mb/s in full-duplex mode or at

10 or 100 Mb/s in half-duplex mode when installed 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

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Chapter 1 Product Overview

Front Panel Description

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 switches do not have an RPS connector:

•Catalyst 2960-8TC-L

•Catalyst 2960G-8TC-L

•Catalyst 2960-8TC-S

•Catalyst 2960PD-8TT-L

•Catalyst 2960-24-S

•Catalyst 2960-24TC-S

•Catalyst 2960-Plus 24TC-S

•Catalyst 2960-48TT-S

•Catalyst 2960-48TC-S

•Catalyst 2960-Plus 48TC-S

Front Panel Description

These sections describe the switch front panels:

•Catalyst 2960 Switch 24and 48-Port Switches, page 1-4

•Catalyst 2960 8-Port Switches, page 1-9

•10/100 Ports, page 1-11

•10/100/1000 Ports, page 1-11

•PoE Ports (Only Catalyst 2960 PoE Switches), page 1-12

•SFP Module Slots, page 1-13

•Dual-Purpose Port, page 1-13

•Power Input Port (Catalyst 2960PD-8TT-L Switch), page 1-14

•LEDs, page 1-14

•Cable Guard for the Catalyst 2960 8-Port Switches, page 1-19

Catalyst 2960 Switch 24and 48-Port Switches

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

•Catalyst 2960-24-S, 2960-Plus 24TC-S, 2960-24TC-S, 2960-Plus 48TC-S, 2960-48TC-S, and 2960-48TT-S Switches, page 1-5

•Catalyst 2960-Plus 24PC-L, 2960-24PC-L, 2960-Plus 24PC-S, 2960-24PC-S, 2960-Plus 24LC-L, 2960-Plus 24LC-S, 2960-24LC-S, 2960-Plus 24TC-L, 2960-24TC-L, 2960-Plus 48TC-L, 2960-48TC-L, 2960-24LT-L, 2960-24TT-L, 2960-48TT-L, 2960-Plus 48PST-L, 2960-48PST-L, 2960-Plus 48PST-S, and 2960-48PST-S Switches, page 1-6

•Catalyst 2960G-24TC-L and Catalyst 2960G-48TC-L Switches, page 1-9

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Chapter 1 Product Overview

Front Panel Description

Catalyst 2960-24-S, 2960-Plus 24TC-S, 2960-24TC-S, 2960-Plus 48TC-S, 2960-48TC-S, and 2960-48TT-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

1 10/100 ports

Catalyst 2960

Series SI

204632

The 10/100 ports on the Catalyst 2960-Plus 24TC-S, 2960-24TC-S, 2960-Plus 48TC-S, and 2960-48TC-S switches are numbered in the same way as the Catalyst 2960-24-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 1-13. See Figure 1-2 and Figure 1-3.

Figure 1-2

SYST

STAT

DUPLX

SPEED

MODE

Catalyst 2960-Plus 24TC-S and 2960-24TC-S Switch Front Panel

Catalyst 2960

Series SI

204631

1 10/100 ports 2 Dual-purpose ports

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

Catalyst 2960

SYST

STAT

DUPLX

SPEED

MODE

Series SI

204630

1 10/100 ports 2 Dual-purpose ports

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Chapter 1 Product Overview

Front Panel Description

The 10/100 ports on the Catalyst 2960-48TT-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. This switch has two 10/100/1000 uplink ports, numbered 1 and 2. The See Figure 1-4.

Figure 1-4 Catalyst 2960-48TT-S Switch Front Panel

271431

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

Catalyst 2960-Plus 24PC-L, 2960-24PC-L, 2960-Plus 24PC-S, 2960-24PC-S, 2960-Plus 24LC-L, 2960-Plus 24LC-S, 2960-24LC-S, 2960-Plus 24TC-L, 2960-24TC-L, 2960-Plus 48TC-L, 2960-48TC-L, 2960-24LT-L, 2960-24TT-L, 2960-48TT-L, 2960-Plus 48PST-L, 2960-48PST-L, 2960-Plus 48PST-S, and 2960-48PST-S Switches

The 10/100 ports on the 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 fixed 10/100 ports on the Catalyst 2960-24PC-L and 2960-24PC-S switches are PoE ports. See Figure 1-5 and Figure 1-6.

Ports 1 to 8 on the Catalyst 2960-24LC-S switch are PoE ports. See Figure 1-7.

Figure 1-5

SYST

RPS

STAT

DUPLX

SPEED

PoE

MODE

Catalyst 2960-Plus 24PC-L and 2960-24PC-L Switch Front Panel

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24
1X											11X	13X											23X		204641
																							1	2	204641
2X											12X	14X											24X
POWER			ETHERNET

1 10/100 PoE ports 2 Dual-purpose ports

Figure 1-6 Catalyst 2960-Plus 24PC-S and 2960-24PC-S Switch Front Panel

206731

1 10/100 PoE ports 2 Dual-purpose ports

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Figure 1-7 Catalyst 2960-Plus 24LC-L and 2960-24LC-S Switch Front Panel

206730

	1			2	3

1	10/100 PoE ports	3	Dual-purpose ports

2	10/100 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 1-13. See Figure 1-8 and Figure 1-9.

Figure 1-8 Catalyst 2960-Plus 24TC-L and 2960-24TC-L Switch Front Panel

SYST
RPS
STAT
DUPLX
SPEED
MODE
1	2
1 10/100 ports 2 Dual-purpose ports

204606

Figure 1-9 Catalyst 2960-Plus 48TC-L and 2960-48TC-L Switch Front Panel

SYST

RPS

STAT

DUPLX

SPEED

MODE

1 10/100 ports 2 Dual-purpose ports

204608

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 1-10, Figure 1-11, and Figure 1-12.

Figure 1-10	Catalyst 2960-24LT-L Switch Front Panel
	1 2	3 4 5 6 7 8 9 10 11 12	13 14 15 16 17 18 19 20 21 22 23 24	Catalyst 2960 Series PoE-8
SYST	1X	11X	13X	23X
RPS
STAT
DUPLX
SPEED				1	2
PoE
	2X	12X	14X	24X
MODE	POWER	ETHERNET

		1		2	3

1	10/100 PoE ports	3	10/100/1000 uplink ports

2	10/100 ports

204642

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Front Panel Description

Figure 1-11 Catalyst 2960-24TT-L Switch Front Panel

SYST
RPS
STAT
DUPLX
SPEED
MODE
1	2
1 10/100 ports 2 10/100/1000 uplink ports

Figure 1-12 Catalyst 2960-48TT-L Switch Front Panel

204607

SYST

RPS

STAT

DUPLX

SPEED

MODE

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

204609

The Catalyst 2960-48PST-L and 2960-48PST-S switches have two SFP module slots (numbered 1 and 2) and two 10/100/1000 uplink ports (numbered 3 and 4). Ports 1 to 48 on the switch are PoE ports. See Figure 1-13 and Figure 1-14.

Figure 1-13 Catalyst 2960-Plus 48PST-L and 2960-48PST-L Switch Front Panel

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36	37	38	39	40	41	42	43	44	45	46	47	48
SYST 1X												11X	13X											23X	24X											35X	37X											47X
RPS																																																1	2
STAT
DUPLX
SPEED
PoE
																																																3	4
2X												12X	14X											24X	26X											36X	38X											48X
MODE	POWER			ETHERNET
																								1																									2
1	10/100 PoE ports																							3			SFP module slots
2	10/100/1000 uplink ports

205644

Figure 1-14 Catalyst 2960-Plus 48PST-S and 2960-48PST-S Switch Front Panel

206732

	1		2

1	10/100 PoE ports	3	SFP module slots

2	10/100/1000 uplink ports

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Front Panel Description

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 1-15 and Figure 1-16.

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 1-13.

Figure 1-15 Catalyst 2960G-24TC-L Switch Front Panel

SYST

RPS

STAT

DUPLX

SPEED

MODE

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

204610

Figure 1-16 Catalyst 2960G-48TC-L Switch Front Panel

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16		17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36	37	38	39	40	41	42	43	44		Catalyst 2960 SERIES
	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16		17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36	37	38	39	40	41	42	43	44
1X																	15X	17X															31X	33X											42X
																																													45	46	47	48
2X													12X				16X	18X												12X			32X	34X											46X
MODE
																						1																									2
1	10/100/1000 ports																	2				Dual-purpose ports

204611

Catalyst 2960 8-Port Switches

These sections describe the Catalyst 2960 8-port switches:

•Catalyst 2960PD-8TT-L Switch, page 1-9

•Catalyst 2960-8TC-S, Catalyst 2960-8TC-L, and Catalyst 2960G-8TC -L Switches, page 1-10

Catalyst 2960PD-8TT-L Switch

The Catalyst 2960PD-8TT-L (Figure 1-17) 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 optional AC power adapter that is connected through the rear panel.

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Front Panel Description

Figure 1-17 Catalyst 2960PD-8TT-L Switch Front Panel

1x	2x	3x	4x	5x	6x	7x	8x
CONSOLE							1
SYST							1
STAT
DPLX
SPD
MODE							PoE INPUT

	1	2		3

1	Console port	3	10/100/1000 power input port

2	10/100 ports

Catalyst 2960-8TC-S, Catalyst 2960-8TC-L, and Catalyst 2960G-8TC -L Switches

204643

The console ports for the Catalyst 2960-8TC-S, Catalyst 2960-8TC-L, and Catalyst 2960G-8TC-L switches (Figure 1-18 to Figure 1-20) 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 at the same time. 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 1-13. For more information on the console port, see the “Console Port” section on page 1-21.

Figure 1-18 Catalyst 2960-8TC-S Switch Front Panel

		Catalyst 2960	SI
SYST
STAT
DPLX
SPD			271432
MODE			271432
1	2	3

1	Console port	3	Dual-purpose port

2	10/100/100 ports

Figure 1-19		Catalyst 2960-8TC-L Switch Front Panel
									Catalyst 2960Series
SYST	CONSOLE	1x	2x	3x	4x	5x	6x	7x	8x
SYST	CONSOLE
STAT
DPLX
SPD										204627
									1
MODE

	1					2			3

1	Console port	3	Dual-purpose port

2	10/100/100 ports

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Front Panel Description

Figure 1-20 Catalyst 2960G-8TC-L Switch Front Panel

								Catalyst 2960GSeries
SYST	CONSOLE	1x	2x	3x	4x	5x	6x	7x
SYST	CONSOLE
STAT
DPLX									204633
SPD
								1
	MODE

	1	2		3

1	Console port	3	Dual-purpose port

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.

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.

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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 B, “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 (Only Catalyst 2960 PoE Switches)

This section applies only to the Catalyst 2960-24PC-L, 2960-24LT-L, 2960-24PC-S, 2960-24LC-S, 2960 48PST-L, and 2960-48PST-S 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-Plus 24PC-L, 2960-24PC-L, 2960-Plus 48PST-L, 2960-48PST-L, 2960-Plus 48PST-S, 2960-48PST-S, 2960-Plus 24PC-S, and 2960-24PC-S, switches and ports 1 to 8 of the 10/100 ports on the Catalyst 2960-24LT-L, 2960-Plus 24LC-L, 2960-Plus 24LC-S, and 2960-24LC-S 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 PoE ports on the Catalyst 2960 switches deliver up to 15.4 W of PoE.

The Catalyst 2960-Plus 24PC-L, 2960-24PC-L, 2960-Plus 48PST-L, 2960-48PST-L, 2960-Plus 48PST-S, 2960-48PST-S, 2960-Plus 24PC-S, and 2960-24PC-S switches deliver a maximum power output of approximately 370-W PoE power.

The Catalyst 2960-24LT-L, 2960-Plus 24LC-L, 2960-Plus 24LC-S, and 2960-24LC-S switches deliver a maximum power output of approximately 124-W PoE power.

•On a per-port basis, you can control whether or not a Catalyst 2960 PoE port automatically provides power when an IP phone or an access point is connected. The device manager, Network Assistant, and the CLI provide PoE settings for each 10/100 PoE port:

–Auto: 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 prestandard IP phone, or a Cisco prestandard Cisco access point, is connected. The Auto setting is the default.

–Never: When you select the Never setting, the port does not provide power even if a Cisco IP phone or an access point is connected.

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•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 configuring and monitoring PoE ports, see the switch software

configuration guide. 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 2960PD-8TT-L

•Catalyst 2960-24LT-L

•Catalyst 2960-24-S

•Catalyst 2960-24TT-L

•Catalyst 2960-48TT-L

•Catalyst 2960-48TT-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 B, “Connector and Cable Specifications.”

Dual-Purpose Port

You can configure a dual-purpose port as either a 10/100/1000 port or as an SFP module port. Each port is considered as a single interface with dual front ends—an RJ-45 connector and an SFP module connector. The dual front ends are not redundant interfaces. The switch activates only one connector of the pair at a time.

By default, the switch dynamically selects the interface type that first links up. However, you can use the media-type interface configuration command to manually select the RJ-45 connector or the

SFP module connector. For information about configuring speed and duplex settings for a dual-purpose uplink, see the software configuration guide.

Each uplink port has two LEDs: one shows the status of the RJ-45 port, and one shows the status of the SFP module port. The port LED is on the active connector.

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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 1-21.)

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 1-22.)

Figure 1-21 Connecting Through a 10/100/1000 Port

1x	2x	3x	4x	5x	6x	7x	8x
CONSOLE							1
SYST							1
STAT
DPLX
SPD
MODE							PoE

204644

Figure 1-22 Connecting Through an External AC Power Adapter

48 0.3 A

270433

1 Power adapter port

LEDs

You can use the switch LEDs to monitor switch activity and its performance. Figure 1-23 shows 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.

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Front Panel Description

Only the Catalyst 2960 PoE switches have a PoE LED.

The four Catalyst 2960 8-port switches and these models do not have an RPS connector or an RPS LED: Catalyst 2960-24-S, Catalyst 2960-Plus 24TC-S, 2960-24TC-S, 2960-48TT-S, 2960-Plus 48TC-S, 2960-48TC-S.

Figure 1-23 Catalyst 2960 Switch LEDs

		1	2
			3	4	5
	1X			4		6
	1X					6
	SYST					7	8
	RPS						9	10
	STAT							11	12
									12

	DUPLX								11X
	SPEED								11X
	SPEED
1	PoE
1
2	MODE
3
4
5	7								204612
	6								204612
	6

1	SYST LED	5	Speed LED

2	RPS LED	6	PoE LED1
3	Status LED	7	Mode button

4	Duplex LED	8	Port LEDs

1.The PoE LED is only on the Catalyst 2960 PoE switches.

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.

Table 1-2	System LED

Color	System Status

Off	System is not powered on.

Green	System is operating normally.

Amber	System is receiving power but is not functioning properly.

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Front Panel Description

RPS LED

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

Note The Catalyst 2960 8-port switches, and the Catalyst 2960-24-S, 2960-Plus 24TC-S, 2960-24TC-S, 2960-Plus 48TC-S, 2960-48TC-S, and 2960-48TT-S switches do not have an RPS LED.

Table 1-3	RPS LED

Color		RPS Status

Off		RPS is off or not properly connected.

Green		RPS is connected and ready to provide back-up power, if required.

Blinking green		RPS is connected but is unavailable because it is providing power to another device
		(redundancy has been allocated to a neighboring device).

Amber		The RPS is in standby mode or in a fault condition. Press the Standby/Active button
		on the RPS, and the LED should turn green. If it does not, the RPS fan could have
		failed. Contact Cisco Systems.

Blinking amber		The internal power supply in a switch has failed, and the RPS is providing power
		to the switch (redundancy has been allocated to this device).

For more information about the Cisco RPS 2300 or the Cisco RPS 675, see the related hardware
installation guide for that power system.

Port LEDs and Modes

The port LEDs, as a group or individually, display information about the switch and about the individual ports (Table 1-4):

Table 1-4	Modes for Port LEDs

Selected Mode
LED		Port Mode	Description

STAT		Port status	The port status. This is the default mode.

DUPLX		Port duplex mode	The port duplex mode: full duplex or half duplex.

SPEED1		Port speed	The port operating speed: 10, 100, or 1000 Mb/s.
PoE2		PoE port power	The PoE status.

1.When installed in Catalyst 2960 switches, 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.

2.The PoE LED is only on the Catalyst 2960 PoE switches.

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Front Panel Description

Even if the PoE mode is not selected, the PoE LED shows PoE problems when they are detected (Table 1-5). The PoE LED applies only to Catalyst 2960 switches that support PoE.

		Table 1-5		PoE Mode LED

		Color			PoE Status

		Off			PoE mode is not selected. None of the 10/100 PoE ports have been denied power
					or are in a fault condition.

		Green			PoE mode is selected, and the PoE status is shown on the port LEDs.

		Blinking amber			PoE mode is not selected. At least one of the 10/100 PoE ports has been denied
					power, or at least one of the ports has a PoE fault.

		To select or change a mode, press the Mode button until the desired mode is highlighted. When you
		change port modes, the meanings of the port LED colors also change. Table 1-6 explains how to interpret
		the port LED colors in different port modes.
Table 1-6	Meaning of Port LED Colors in Different Modes on the Switch

Port Mode	LED Color		Meaning

STAT	Off		No link, or port was administratively shut down.
(port status)
(port status)	Green		Link present.
	Green		Link present.

	Blinking green		Activity. Port is sending or receiving data.

	Alternating		Link fault. Error frames can affect connectivity, and errors such as excessive collisions,
	green-amber		cyclic redundancy check (CRC) errors, and alignment and jabber errors are monitored for a
			link-fault indication.

	Amber		Port is blocked by Spanning Tree Protocol (STP) and is not forwarding data.
			Note After a port is reconfigured, the port LED can remain amber for up to 30 seconds as
					STP checks the network topology for possible loops.

	Blinking amber		Port is blocked by STP and is not sending or receiving packets.

DUPLX	Off		Port is operating in half duplex.
(duplex)
(duplex)	Green		Port is operating in full duplex.
	Green		Port is operating in full duplex.

SPEED	10/100 and 10/100/1000 ports

	Off		Port is operating at 10 Mb/s.

	Green		Port is operating at 100 Mb/s.

	Blinking green		Port is operating at 1000 Mb/s.

	SFP ports

	Off		Port is operating at 10 Mb/s.

	Green		Port is operating at 100 Mb/s.

	Blinking green		Port is operating at 1000 Mb/s.
			Note When installed in Catalyst 2960 switches, 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.

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Table 1-6	Meaning of Port LED Colors in Different Modes on the Switch (continued)

Port Mode	LED Color	Meaning

PoE	Off	PoE is off.
			If the powered device is receiving power from an AC power source, the PoE port LED is off
			even if the powered device is connected to the switch port.

	Green		PoE is on. The port LED is green only when the switch port is providing power.

	Alternating green		PoE is denied because providing power to the powered device will exceed the switch power
	and amber		capacity. The Catalyst 2960-Plus 24PC-L, 2960-24PC-L, 2960-Plus 48PST-L,
			2960-48PST-L, 2960-Plus 48PST-S, 2960-48PST-S, 2960-Plus 24PC-S, and 2960-24PC-S
			switches provide up to 370 W of power. The Catalyst 2960-24LT-L, 2960-Plus 24LC-L,
			2960-Plus 24LC-S, and 2960-24LC-S switches provide up to 124 W of power.

	Blinking amber	PoE is off due to a fault.

			Caution PoE faults are caused when noncompliant cabling or powered devices are
				connected to a PoE port. Only standard-compliant cabling can be used to connect
				Cisco prestandard IP Phones or wireless access points or IEEE 802.3af-compliant
				devices to PoE ports. You must remove from the network the cable or device that
				causes a PoE fault.


	Amber		PoE for the port has been disabled. By default, PoE is enabled.

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 1-24. 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 1-6.

Figure 1-24 Dual-Purpose Port LEDs

1 2 3 4

1	RJ-45 connector	3	SFP module port in-use LED

2	RJ-45 port in-use LED	4	SFP module slot

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Rear Panel Description

Cable Guard for the Catalyst 2960 8-Port Switches

You can order an optional cable guard to secure cables to the front of the Catalyst 2960-8TC-L, 2960G-8TC-L, 2960-8TC-S, and 2960PD-8TT-L switches and 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, 2960-8TC-S, and 2960PD-8TT-L switches

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

Rear Panel Description

•Internal Power Supply, page 1-20

•Cisco RPS, page 1-20

•Console Port, page 1-21

Depending on the Catalyst 2960 switch model, the switch can have an RJ-45 console port, a fan exhaust, an RPS connector, and an AC power connector (see Figure 1-25 for an example of a Catalyst 2960 rear panel).

Figure 1-25 Catalyst 2960 Switch Rear Panel

CONSOLE

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1	RJ-45 console port1	3	RPS connector 2
2	Fan exhaust3	4	AC power connector4

1.The Catalyst 2960 8-port switches have the console port on the front panel rather than on the rear panel.

2.These Catalyst 2960 switches do not have an RPS connector: Catalyst 8-port switches, 2960-24-S, 2960-Plus 24TC-S, 2960-24TC-S, 2960-Plus 48TC-S, 2960-48TC-S, and 2960-48TT-S switches.

3.The Catalyst 2960 8-port switches do not have a fan.

4.The Catalyst 2960PD-8TT-L switch does not have an AC internal power supply.

Catalyst 2960 Switch Hardware Installation Guide

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Chapter 1 Product Overview

Rear Panel Description

Internal Power Supply

All switches other than the Catalyst 2960PD-8TT-L are powered through their internal power supply. 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.

Note The Catalyst 2960PD-8TT-L switch does not have a internal power supply. For more information, see “Power Input Port (Catalyst 2960PD-8TT-L Switch)” section on page 1-14.

Cisco RPS

Depending on the switch model, you can connect the switch to either of these Cisco redundant power systems (RPS) to provide backup power if the switch power supply fails:

•“Cisco RPS 2300” section on page 1-20

•“Cisco RPS 675” section on page 1-21

Connect the switch and the Cisco RPS to the same AC power source. Use the RPS connector cable supplied with the RPS to connect the RPS to the switch.

Warning Attach only the following Cisco RPS model to the RPS receptacle: PWR-RPS2300 / PWR675-AC-RPS-N1 Statement 370

Note These Catalyst 2960 switches do not have an RPS connector: Catalyst 8-port switches, 2960-24-S, 2960-Plus 24TC-S, 2960-24TC-S, 2960-Plus 48TC-S, 2960-48TC-S, 2960-48TT-S, 2960-Plus 48PST-S, 2960-48PST-S, 2960-Plus 24PC-S, 2960-24PC-S, 2960-Plus 24LC-S, and 2960-24LC-S switches.

Note These Catalyst 2960 switches support only the Cisco RPS 2300: Catalyst 2960-24PC-L, 2960-24LT-L, and 2960-48PST-L switches.

For complete information about the Cisco RPS products, including compatibility matrixes listing the supported RPS for each Catalyst 2960 switch, see the RPS documents on Cisco.com:

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

Cisco RPS 2300

The Cisco RPS 2300 is a redundant power system that supports six network switches and provides power to one or two failed switches at a time. It automatically senses when the internal 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.

All supported, 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

Catalyst 2960 Switch Hardware Installation Guide

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