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Cisco Catalyst 3550 Installation Manual

Cisco Catalyst 3550 Installation Manual

Multilayer switch
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Catalyst 3550 Multilayer Switch
Hardware Installation Guide
May 2002
Corporate Headquarters
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
http://www.cisco.com
Tel:
408 526-4000
800 553-NETS (6387)
Fax:
408 526-4100
Customer Order Number: DOC-7811358=
Text Part Number: 78-11358-03

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Summary of Contents for Cisco Catalyst 3550

  • Page 1 Catalyst 3550 Multilayer Switch Hardware Installation Guide May 2002 Corporate Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 526-4100 Customer Order Number: DOC-7811358= Text Part Number: 78-11358-03...
  • Page 2 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: •...
  • Page 3 All other trademarks mentioned in this document or Web site are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0203R) Catalyst 3550 Multilayer Switch Hardware Installation Guide Copyright ©...

  • Page 5: Table Of Contents

    Cisco TAC Web Site xxiii Cisco TAC Escalation Center xxiv Product Overview C H A P T E R Features Front-Panel Description 10/100 and 10/100/1000 Ports 100BASE-FX Ports GBIC Module Slots Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...
  • Page 6 Verifying Package Contents Installing the Switch Rack Mounting Attaching Brackets to the Catalyst 3550-12T and 3550-12G Switches Attaching Brackets to the Catalyst 3550-24 and 3550-48, 3550-24-FX, and 3550-24-DC Switches 2-13 Mounting the Switch in a Rack 2-16 Catalyst 3550 Multilayer Switch Hardware Installation Guide...
  • Page 7 Connecting to a GigaStack GBIC Module Port 2-40 Connecting a PC or Terminal to the Console Port 2-40 Where to Go Next 2-42 Troubleshooting C H A P T E R Understanding POST Results Diagnosing Problems Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...
  • Page 8 Translated Safety Warnings A P P E N D I X Attaching the Cisco RPS 300 (model PWR300-AC-RPS-N1) Service Personnel Warning Qualified Personnel Warning Installation Warning Jewelry Removal Warning Stacking the Chassis Warning Catalyst 3550 Multilayer Switch Hardware Installation Guide viii 78-11358-03...
  • Page 9 Catalyst 3550-24-DC Service Requirement C-24 Restricted Access Warning C-26 Shielded Ethernet Cables Warning C-27 DC Power Disconnection Warning C-28 Class 1 Laser Product Warning C-30 Laser Beam Exposure Warning C-31 N D E X Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...
  • Page 10 Contents Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 11: Cisco Limited Lifetime Hardware Warranty Terms

    There are special terms applicable to your hardware warranty as well as services you may use during the warranty period. Your formal Warranty Statement, including the warranty applicable to Cisco software, appears in the CD which accompanies your Cisco Product. Follow these steps to access and download the Cisco Information Packet and your warranty document from the CD or from Cisco.com.
  • Page 12 (5) years from the announcement of discontinuance. Replacement, Repair or Refund Procedure for Hardware Cisco or its service center will use commercially reasonable efforts to ship a replacement part within ten (10) working days after receipt of the RMA request.
  • Page 13 Cisco Limited Lifetime Hardware Warranty Terms Complete the information below and keep for ready reference. Product purchased from: Their telephone number: Product Model and Serial number: Maintenance Contract number: Catalyst 3550 Multilayer Switch Hardware Installation Guide xiii 78-11358-03...
  • Page 14 Cisco Limited Lifetime Hardware Warranty Terms Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 15: Preface

    Preface Audience This guide is for the networking or computer technician responsible for installing the Catalyst 3550 multilayer switches. We assume that you are familiar with the concepts and terminology of Ethernet and local area networking. Purpose This guide documents the hardware features of the Catalyst 3550 family of multilayer switches.

  • Page 16: Organization

    This guide is organized into these chapters: Chapter 1, “Product Overview,” is a physical and functional overview of the Catalyst 3550 family of switches. It describes the switch ports, the standards they support, and the switch LEDs. Chapter 2, “Installing and Starting the Switch,”...
  • Page 17 électriques et familiarisez-vous avec les procédures courantes de prévention des accidents. Pour obtenir les traductions des mises en garde figurant dans cette publication, veuillez consulter l’annexe intitulée C « Translated Safety Warnings » (Traduction des avis de sécurité). Catalyst 3550 Multilayer Switch Hardware Installation Guide xvii 78-11358-03...
  • Page 18 (Para ver as traduções dos avisos que constam desta publicação, consulte o apêndice C “Translated Safety Warnings” - “Traduções dos Avisos de Segurança”). Catalyst 3550 Multilayer Switch Hardware Installation Guide xviii 78-11358-03...

  • Page 19: Related Publications

    These documents provide complete information about the switch and are available from this Cisco.com site: http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/index.htm • Release Notes for the Catalyst 3550 Multilayer Switch (not orderable but available on Cisco.com) Switch requirements and procedures for initial configurations and software Note upgrades tend to change and therefore appear only in the release notes.

  • Page 20: Obtaining Documentation

    The following sections provide sources for obtaining documentation from Cisco Systems. World Wide Web You can access the most current Cisco documentation on the World Wide Web at the following URL: http://www.cisco.com Translated documentation is available at the following URL: http://www.cisco.com/public/countries_languages.shtml...

  • Page 21: Ordering Documentation

    553-NETS (6387). Documentation Feedback If you are reading Cisco product documentation on the World Wide Web, you can send us your comments by completing the online survey. When you display the document listing for this platform, click Give Us Your Feedback. After you display the survey, select the manual that you wish to comment on.

  • Page 22: Obtaining Technical Assistance

    Technical Assistance Center The Cisco TAC is available to all customers who need technical assistance with a Cisco product, technology, or solution. Two types of support are available through the Cisco TAC: the Cisco TAC Web Site and the Cisco TAC Escalation Center.

  • Page 23: Cisco Tac Web Site

    If you cannot resolve your technical issues by using the Cisco TAC Web Site, and you are a Cisco.com registered user, you can open a case online by using the TAC Case Open tool at the following URL: http://www.cisco.com/tac/caseopen If you have Internet access, it is recommended that you open P3 and P4 cases through the Cisco TAC Web Site.

  • Page 24: Cisco Tac Escalation Center

    1 or priority level 2; these classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer will automatically open a case.

  • Page 25: Product Overview

    These switches also can be deployed as backbone switches, aggregating Gigabit Ethernet traffic from other network devices. This chapter provides a functional overview of the Catalyst 3550 switch models. These topics are included: Features, page 1-1 •...
  • Page 26 24 autosensing 10/100 Ethernet ports WS-C3550-24-DC- 2 GBIC-based Gigabit SYSTE M MODE STATU S module slots UTIL DUPLX SPEED Ca tal ys t 35 50 DC-input power connector 1. GBIC = Gigabit Interface Converter Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...
  • Page 27 Power Supports connection for optional Cisco RPS 300 Redundant Power System that • Redundancy operates on AC input and supplies backup DC power to the switch...
  • Page 28 Supports connection for optional Cisco RPS 300 Redundant Power System that • Redundancy operates on AC input and supplies backup DC power to the switch (Catalyst 3550-24 and 3550-48 only) The Cisco RPS 300 does not support the Catalyst 3550-24-DC switch. Note Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 29: Front-Panel Description

    Mode button, as shown in Figure 1-4 Figure 1-5. The Catalyst 3550-12T 10/100/1000 ports are numbered 1 through 10 (port 1 is on the far left, as shown in Figure 1-7), and the GBIC port numbers are 11 (top) and 12 (bottom). The Catalyst 3550-12G GBIC ports are grouped in pairs. The...
  • Page 30 1-10. Port 3 is above port 4, and so on. The GBIC port numbers are 1 (left) and 2 (right). The Catalyst 3550-24-FX 100BASE-FX ports are numbered 1 through 24 (port 1 is on the far left , as shown in...
  • Page 31 Chapter 1 Product Overview Front-Panel Description Figure 1-4 Catalyst 3550-24 and Catalyst 3550-24-DC Front Panel SYS TEM STA TUS MO DE UTIL DUP LX SPE ED C at al ys t 35 50 SE RI ES 10/100 ports GBIC module slots...

  • Page 32: 10/100 And 10/100/1000 Ports

    100BASE-TX and 1000BASE-T traffic requires Category 5 cable. 10BASE-T traffic can use Category 3 or Category 4 cables. When connecting the switch to workstations, servers, routers, and Cisco IP Phones, be sure that the cable is a straight-through cable. When connecting the switch to switches or hubs, use a crossover cable.

  • Page 33: Gbic Module Slots

    120 kilometers (single mode only). For information about the CWDM GBIC modules, refer to the Installation Notes for the CWDM Passive Optical System (not orderable but available on Cisco.com) • GigaStack GBIC module for creating a 1-Gbps stack configuration of up to nine supported switches.

  • Page 34: Leds

    ID, security code, or CRC is invalid, the switch places the interface in an error-disabled state. If you are using a non-Cisco approved GBIC module, remove the GBIC module Note from the switch, and replace it with a Cisco-approved module.
  • Page 35 M O D E U T IL D U P L X S P E E D Mode button System LED Redundant power system LED Status LED Utilization LED Duplex LED Speed LED Catalyst 3550 Multilayer Switch Hardware Installation Guide 1-11 78-11358-03...
  • Page 36 M O D E U T IL D U P L X S P E E D Mode button System LED Redundant power system LED Status LED Utilization LED Duplex LED Speed LED Catalyst 3550 Multilayer Switch Hardware Installation Guide 1-12 78-11358-03...
  • Page 37 U T IL D U P L X S P E E D Mode button 1 2 X System LED Redundant power system LED Status LED Utilization LED Duplex LED Speed LED Catalyst 3550 Multilayer Switch Hardware Installation Guide 1-13 78-11358-03...
  • Page 38 1 5 X S P E E D M O D E 1 6 X System LED Mode label Redundant power system LED Status LED Utilization LED Duplex LED Speed LED Catalyst 3550 Multilayer Switch Hardware Installation Guide 1-14 78-11358-03...
  • Page 39 S T A T U S U T IL D U P L X S P E E D Mode button System LED Redundant power system LED Status LED Utilization LED Duplex LED Speed LED Catalyst 3550 Multilayer Switch Hardware Installation Guide 1-15 78-11358-03...

  • Page 40: System Led

    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 300, refer to the Cisco RPS 300 Redundant Power System Hardware Installation Guide.

  • Page 41: Port Leds And Modes

    To select or change a mode, press the Mode button (or Mode label on the Catalyst 3550-48 switch) until the desired mode is highlighted. When you change port modes, the meanings of the port LED colors also change.
  • Page 42 Figure 1-13 for details on the Catalyst 3550-12T and 3550-12G switches. See Figure 1-14 Figure 1-15 for details on the Catalyst 3550-24 and 3550-48 switches. Amber The peak total backplane utilization over the last 24 hours. DUPLX Port is operating in half duplex.
  • Page 43 LEDs on the Catalyst 3550-12T switch. If all port LEDs on the switch are green, the switch is using 50 percent or more of its total bandwidth. If port LEDs 1 through 11 are green, the switch is using between 25 and 50 percent of its total bandwidth.
  • Page 44 Figure 1-14 shows the bandwidth utilization percentages displayed by the LEDs on the Catalyst 3550-24 switch. If all port LEDs on the switch are green, the switch is using 50 percent or more of its total bandwidth. If port LEDs 1 through 24 and GBIC port 1 LED are green, the switch is using between 25 and 50 percent of its total bandwidth.

  • Page 45: Rear-Panel Description

    Figure 1-16 shows the bandwidth utilization percentages displayed by the LEDs on the Catalyst 3550-24-FX switch. If all port LEDs and GBIC LEDs on the switch are green, the switch is using 50 percent or more of its total bandwidth. If port LEDs 1 through 24 and GBIC port 1 LED are green, the switch is using between 25 and 50 percent of its total bandwidth.
  • Page 46 CO NS OL power system RJ-45 AC power connector console connector port exhaust Figure 1-18 Catalyst 3550-24, 3550-48, and 3550-24-FX Rear Panel 10 0-2 40 5-3 A 50 /60 Hz DC OU TP UT AC power CO NS OL Redundant connector...

  • Page 47: Power Connectors

    Cisco RPS 300 Redundant Power System to provide backup power if the switch internal power supply should fail. Note The Catalyst 3550 switch and the Cisco RPS 300 should be connected to the same AC power source. Internal Power Supply Connector The internal power supply is an autoranging unit that supports input voltages between 100 and 240 VAC.

  • Page 48: Console Port

    For more information on the Cisco RPS 300, refer to the Cisco RPS 300 Redundant Power System Hardware Installation Guide.
  • Page 49 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.

  • Page 50: Network Configurations

    Product Overview Management Options Network Configurations Refer to the Catalyst 3550 Multilayer Switch Software Configuration Guide on Cisco.com for network configuration concepts and examples of using the switch to create dedicated network segments and interconnecting the segments through Gigabit Ethernet connections.

  • Page 51: Installing And Starting The Switch

    Connecting to 100BASE-FX Ports, page 2-36 • Connecting to the GBIC Module Ports, page 2-38 • Connecting a PC or Terminal to the Console Port, page 2-40 • Where to Go Next, page 2-42 • Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 52: Preparing For Installation

    Do not stack the chassis on any other equipment. If the chassis falls, it can Warning cause severe bodily injury and equipment damage. Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...
  • Page 53 Warning Ultimate disposal of this product should be handled according to all national laws and regulations. Warning Attach only the Cisco RPS (model PWR300-AC-RPS-N1) to the RPS receptacle. Class 1 laser product Warning Warning Avoid exposure to the laser beam.

  • Page 54: Emc Regulatory Statements

    Chapter 2 Installing and Starting the Switch Preparing for Installation EMC Regulatory Statements This section includes specific regulatory statements about the Catalyst 3550 family of switches. U.S.A. U.S. regulatory information for this product is in the front matter of this manual.

  • Page 55: Korea

    EMC “A” osztályú követelményeknek (MSZ EN 55022) megfeleloen kerülhet sor, illetve ezen “A” osztályú berendezések csak megfelelo kereskedelmi forrásból származhatnak, amelyek biztosítják a megfelelo speciális üzembe helyezési körülményeket és biztonságos üzemelési távolságok alkalmazását. Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 56: Site Requirements

    If the switch is installed in a closed or multirack assembly, the temperature around it might be greater than normal room temperature. Cabling is away from sources of electrical noise, such as radios, power lines, • and fluorescent lighting fixtures. Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 57: Verifying Package Contents

    Carefully remove the contents from the shipping container, and check each item Note 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.

  • Page 58: Installing The Switch

    – the switch – Two number-12 Phillips machine screws for attaching the brackets to a rack The DC-switch kit ships only with the Catalyst 3550-24-DC switch. Note One RJ-45-to-DB-9 adapter cable • • Cisco Information Packet, containing warranty, safety, and support...

  • Page 59: Attaching Brackets To The Catalyst 3550-12T And 3550-12G Switches

    Installing the switch in a 24-inch rack requires an optional bracket kit not included with the switch. You can order a kit containing the 24-inch rack-mounting brackets and hardware from Cisco. For the Catalyst 3550-12T and 3550-12G switches, order part number RCKMNT-3550-1.5RU=. For the Catalyst 3550-24, 3550-48, 3550-24-FX, and 3550-24-DC switches, order part number RCKMNT-1RU=.
  • Page 60 Attaching Brackets for 19- and 24-Inch Racks, Front Panel Forward Phillips flat-head screws SY ST EM R PS ST AT U S M O D E U TI L D U PL X SP EE D 24" Configuration Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-10 78-11358-03...
  • Page 61 Attaching Brackets for 19- and 24-Inch Racks, Rear Panel Forward 19" Configuration Phillips flat-head screws Figure 2-4 Attaching Brackets for 19- and 24-Inch Racks, Rear Panel Forward 24" Configuration Phillips flat-head screws Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-11 78-11358-03...
  • Page 62 SE RI ES 19" Configuration Phillips flat-head screws Figure 2-6 Attaching Brackets for 19- and 24-Inch Telco Racks C at al ys t 35 50 SE RI ES 24" Configuration Phillips flat-head screws Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-12 78-11358-03...

  • Page 63: Attaching Brackets To The Catalyst 3550-24 And 3550-48, 3550-24-Fx, And 3550-24-Dc Switches

    Phillips flat-head screws Note Before you attach the brackets on the Catalyst 3550-24-FX switch, remove the screws that are on the bottom-front of the chassis. Attach the bracket by using the supplied Phillips flat-head screws, as shown in Figure 2-7.
  • Page 64 S P E E D Phillips flat-head screws 12 X 24" Configuration Figure 2-9 Attaching Brackets for 19- and 24-Inch Racks, Rear Panel Forward C O N S O 19" Configuration Phillips flat-head screws Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-14 78-11358-03...
  • Page 65 Figure 2-11 Attaching Brackets for 19- and 24-Inch Telco Racks C a ta ly st 3 5 5 0 S E R IE S 19" Configuration Phillips flat-head screws Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-15 78-11358-03...

  • Page 66: Mounting The Switch In A Rack

    Chapter 2 Installing and Starting the Switch Installing the Switch Before you attach the brackets on the Catalyst 3550-24-FX switch, remove the Note screws that are in the middle of the chassis. Attach the bracket by using the supplied Phillips flat-head screws, as shown in Figure 2-11.

  • Page 67: Attaching The Cable Guide

    DUP LX SPE ED C at al ys t 35 50 SE RI ES Phillips machine screws Figure 2-14 Mounting the Catalyst 3550-24, 3550-48, 3550-24-FX, and 3550-24-DC Switches in a Rack SYS TEM STA TUS MO DE UTI L DU PLX...
  • Page 68 Figure 2-16. This cable guide secures up to 48 cables. Use the supplied black screw to mount it on the left bracket. Figure 2-15 Attaching the Cable Guide on the Catalyst 3550-12T, 3550-12G, 3550-24, 3550-24-FX, and 3550-24-DC Switches SYS TEM...

  • Page 69: Wall Mounting

    Mounting the Switch on a Wall, page 2-21 Note The illustrations in this section show the Catalyst 3550-12T switch as an example. All the Catalyst 3550 switches are wall-mounted following the same procedures. Attaching the Brackets to the Switch for Wall-Mounting Figure 2-17 shows how to attach a 19-inch bracket to one side of the switch.
  • Page 70 Warning If an RPS is not connected to the switch, install an RPS connector cover on the back of the switch. Figure 2-18 Attaching the RPS Connector Cover on the Catalyst 3550-12T and 3550-12G Switches DC OU TP UT 10 0-2 40...

  • Page 71: Mounting The Switch On A Wall

    2-20. Warning To comply with safety regulations, mount the switches on a wall with the front panel facing up. Figure 2-20 Mounting the Switch on a Wall User-supplied screws User-supplied screws Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-21 78-11358-03...

  • Page 72: Installing The Gbic Modules

    GBICs (1000BASE-X module, 1000BASE-T module, or the GigaStack module), refer to your GBIC documentation. To prevent electrostatic-discharge (ESD) damage when installing GBICs, follow Caution your normal board and component handling procedures. Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-22 78-11358-03...
  • Page 73 Figure 2-22 Installing a 1000BASE-T GBIC Module in a Switch Metal flap door C a ta ly s t 3 5 5 0 S E R IE S 1000BASE-T GBIC module slot GBIC module Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-23 78-11358-03...

  • Page 74: Powering On The Switch

    Connect one end of the AC power cord to the AC power connector on the switch. Step 2 Connect the other end of the power cord to an AC power outlet. Step 3 Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-24 78-11358-03...

  • Page 75: Connecting To Dc Power

    For POST information, see the “Running Post” section on page 2-34. Connecting to DC Power To connect the Catalyst 3550-24-DC switch to a DC-input power source, follow the steps in these sections: Preparing for Installation • Grounding the Switch •...

  • Page 76: Grounding The Switch

    If your ground wire is insulated, use a wire stripping tool to strip the 6-gauge Step 2 ground wire to 0.5 inch (12.7 mm) ± 0.02 inch (0.5 mm), as shown in Figure 2-24. Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-26 78-11358-03...
  • Page 77 Use the two number-10-32 screws to attach the ground lug and wire assembly to the switch rear panel RPS connector, as shown in Figure 2-26. Step 6 Using a ratcheting torque screwdriver, torque each ground-lug screw to 15 lbf-in. (240 ozf-in.) Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-27 78-11358-03...

  • Page 78: Wiring The Dc-Input Power Source

    DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle of the circuit breaker in the OFF position. Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-28 78-11358-03...
  • Page 79 Chapter 2 Installing and Starting the Switch Connecting to DC Power You must connect the Catalyst 3550-24-DC switch only to a DC-input power Caution source that has an input supply voltage from –36 to –72 VDC. If the supply voltage is not in this range, the switch might not operate properly or might be damaged.
  • Page 80 An exposed wire lead from a DC-input power source can conduct harmful levels of electricity. Be sure that no exposed portion of the DC-input power source wire extends from the terminal block plug. Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-30 78-11358-03...
  • Page 81 (above the installed wire lead) to 4.5 lbf-in. (72 ozf-in.), as shown in Figure 2-31. Do not overtorque the terminal-block captive screws. The recommended Caution maximum torque is 4.5 lbf-in. ( 72 ozf-in.) Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-31 78-11358-03...
  • Page 82 Torque to 4.5 lbf-in. (72 ozf-in.) Step 6 Repeat Steps 4 and 5 for the remaining three DC-input power source wires. Figure 2-32 shows the completed wiring of a terminal block plug. Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-32 78-11358-03...
  • Page 83 For example, use tie wraps to secure the wires to the rack. Figure 2-33 Inserting the Terminal Block in the Block Header 36 - 72 V 1 - 0. 5A CO NS OL Tie wrap Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-33 78-11358-03...

  • Page 84: Running Post

    To comply with the intrabuilding lightning surge requirements, intrabuilding Caution wiring must be shielded, and the shield for the wiring must be grounded at both ends. The Catalyst 3550-24-DC switch is suitable only for intrabuilding or nonexposed Caution wiring connections. Running Post As the switch powers on, it begins POST, a series of eight tests that run automatically to ensure that the switch functions properly.
  • Page 85 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 2-34.) When connecting to switches or repeaters, use a crossover cable.

  • Page 86: Connecting To 100Base-Fx Ports

    Cisco Part Number 1-meter, MT-RJ-to-SC multimode cable CAB-MTRJ-SC-MM-1M 3-meter, MT-RJ-to-SC multimode cable CAB-MTRJ-SC-MM-3M 5-meter, MT-RJ-to-SC multimode cable CAB-MTRJ-SC-MM-5M 1-meter, MT-RJ-to-ST multimode cable CAB-MTRJ-ST-MM-1M 3-meter, MT-RJ-to-ST multimode cable CAB-MTRJ-ST-MM-3M 5-meter, MT-RJ-to-ST multimode cable CAB-MTRJ-ST-MM-5M Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-36 78-11358-03...
  • Page 87 See Chapter 3, “Troubleshooting”, for solutions to cabling problems. Reconfigure and reboot the target device if necessary. Step 5 Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-37 78-11358-03...

  • Page 88: Connecting To The Gbic Module Ports

    Remove the rubber plugs from the fiber-optic port on the module, and store them for future use. Step 2 Insert the SC connector in the fiber-optic receptacle, as shown in Figure 2-36. Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-38 78-11358-03...

  • Page 89: Connecting To A 1000Base-T Gbic Module Port

    Connect the 1000BASE-T connector to the GBIC module port, as shown in Figure 2-37. Figure 2-37 Connecting to a 1000BASE-T Module Port C a ta ly s t 3 5 5 0 S E R IE S Catalyst 3550 Multilayer Switch Hardware Installation Guide 2-39 78-11358-03...

  • Page 90: Connecting To A Gigastack Gbic Module Port

    If you want to connect the switch console port to a terminal, you need to provide a 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 “Cable and Adapter...
  • Page 91 Start the terminal-emulation program if you are using a PC or terminal. Step 4 Figure 2-39 Connecting to the Catalyst 3550-12T and 3550-12G Console Port 10 0- 24 0V ~ 5- 3A...

  • Page 92: Where To Go Next

    Chapter 2 Installing and Starting the Switch Where to Go Next Figure 2-40 Connecting to the Catalyst 3550-24, 3550-48, 3550-24-FX, and 3550-24-DC Console Port C O N S O RJ-45 console port Where to Go Next If the default configuration is satisfactory, the switch does not need further configuration.

  • Page 93: Troubleshooting

    You can also get statistics from the browser interface, from the command-line interface (CLI), or from a Simple Network Management Protocol (SNMP) workstation. Refer to the Catalyst 3550 Multilayer Switch Software Configuration Guide, and the Catalyst 3550 Multilayer Switch Command Reference on Cisco.com, or the documentation that came with your SNMP application for...

  • Page 94: Diagnosing Problems

    If a test fails, the port LED associated with the test turns amber, and the system LED turns amber. Note POST failures are usually fatal. Call Cisco Systems if your switch does not pass POST. Table 3-1...
  • Page 95 Bad adapter in attached device • Excessive errors found in port • Run adapter card diagnostic statistics. utility. • STP checking for possible • Wait 30 seconds for the port loops. LED to turn green. Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...
  • Page 96 Switch not recognizing a GBIC Refer to the your GBIC module. documentation for more information. Unreadable characters on the Incorrect baud rate. Reset the emulation software to management console 9600 baud. Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...
  • Page 97 Refer to the Catalyst 3550 Multilayer Switch Command Reference for information on the errdisable recovery command. Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...
  • Page 98 Chapter 3 Troubleshooting Diagnosing Problems Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 99: Appendix

    Table A-1 Table A-2 the regulatory agency approvals in Table A-5. Table A-1 Technical Specifications for the Catalyst 3550-12T and 3550-12G Environmental Ranges Operating temperature 32 to 113°F (0 to 45°C) Storage temperature –13 to 158°F (–25 to 70°C) Relative humidity...
  • Page 100 Appendix A Technical Specifications Table A-2 Technical Specifications for the Catalyst 3550-24, 3550-48, and 3550-24-FX Environmental Ranges Operating temperature 32 to 113°F (0 to 45°C) Storage temperature –13 to 158°F (–25 to 70°C) Relative humidity 10 to 85% (noncondensing) Operating altitude...
  • Page 101 18 AWG (6 AWG for protective earth) connection Branch circuit protection Physical Dimensions Weight 10.5 lb (4.8 ) Dimensions (H x D x W) 1.75 x 14.4 x 17.5 in. (4.45 x 36.58 x 44.45 Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...
  • Page 102 CB to IEC 60950 with all country deviations AS/NZS 3548 Class A NOM to NOM-019-SCFI BSMI CE Marking CE Marking Table A-6 Catalyst 3550-24-DC Switch Agency Approvals NEBS Bellcore GR-1089-CORE Bellcore GR-63-CORE Bellcore SR-3580 Level 3 Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 103: Appendix

    A P P E N D I X Connector and Cable Specifications This appendix describes the Catalyst 3550 switch ports and the cables and adapters that you use to connect the switch to other devices. Connector Specifications These sections describe the connectors used with the Catalyst 3550 switches.

  • Page 104: Connecting To 1000Base-T Devices

    X or when both ports do not have an X. Figure B-1 10/100/1000 Port Pinouts Label 4 5 6 7 8 TP0+ TP0- TP1+ TP2+ TP2- TP1- TP3+ TP3- Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 105: 10/100 Ports

    Use a straight-through cable to connect two ports only when one port is Note 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. Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 106: 100Base-Fx Ports

    100BASE-FX ports use 50/125- or 62.5/125-micron multimode fiber-optic cabling. You can connect a 100BASE-FX port to an SC or ST port on a target device by using one of the MT-RJ fiber-optic patch cables listed in Table B-1. Use the Cisco part numbers in Table B-1 to order the patch cables that you need.

  • Page 107: 1000Base-X Gbic Module Ports

    1000BASE-X Gigabit Interface Converter (GBIC) module ports use duplex SC connectors, as shown in Figure B-4. Figure B-4 1000BASE-X SC Connector 1000BASE-T GBIC Module Port The 1000BASE-T GBIC module port uses one RJ-45 connector, as shown in Figure B-5. Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 108: Gigastack Gbic Module Ports

    B-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. Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 109: Cable And Adapter Specifications

    Cisco. For console port and adapter pinout information, see Table B-2 Table B-3. Cable and Adapter Specifications These sections describe the cables and adapters used with Catalyst 3550 switches. Two Twisted-Pair Cable Pinouts Figure B-7 Figure B-8 show the schematics of two twisted-pair cables for 10/100 ports.

  • Page 110: Four Twisted-Pair Cable Pinouts For 1000Base-T Ports

    7 NC 7 NC 8 NC 8 NC Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports Figure B-11 Figure B-12 show the schematics of four twisted-pair cables for 10/100/1000 ports on Catalyst 2950T-24 switches. Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 111: Rollover Cable And Adapter Pinouts

    5 TP2- 5 TP2- 7 TP3+ 7 TP3+ 8 TP3- 8 TP3- Rollover Cable and Adapter Pinouts This section describes how to identify a rollover cable and also describes the adapter pinouts. Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 112: Identifying A Rollover Cable

    RJ-45-to-DB-9 adapter cable, and the console device. Table B-2 Console Port Signaling Using a DB-9 Adapter Switch Console RJ-45-to-DB-9 Console Port (DTE) Terminal Adapter Device Signal DB-9 Pin Signal Catalyst 3550 Multilayer Switch Hardware Installation Guide B-10 78-11358-03...
  • Page 113 The RJ-45-to-DB-25 female DTE adapter is not supplied with the switch. You can Note order a kit (part number ACS-DSBUASYN=) containing this adapter from Cisco. Table B-3 Console Port Signaling Using a DB-25 Adapter Switch...
  • Page 114 Appendix B Connector and Cable Specifications Cable and Adapter Specifications Catalyst 3550 Multilayer Switch Hardware Installation Guide B-12 78-11358-03...

  • Page 115: Appendix

    Attaching the Cisco RPS 300 (model PWR300-AC-RPS-N1) Warning Attach only the Cisco RPS 300 (model PWR300-AC-RPS-N1) to the RPS receptacle. Waarschuwing Slechts de Cisco RPS 300 (model PWR300-AC-RPS-N1) aan de RPS contactdoos verbinden.

  • Page 116: Service Personnel Warning

    Collegare soltanto il Cisco RPS 300 (modello PWR300-AC-RPS-N1) alla presa RPS. Advarsel! Koble bare Cisco RPS 300 (modell PWR300-AC-RPS-N1) til RPS-stikkontakten. Aviso Anexe o RPS 300 Cisco (modelo PWR300-AC-RPS-N1) apenas ao receptáculo RPS. Aviso Sólo conecte el Cisco RPS 300 (modelo PWR300-AC-RPS-N1) al receptáculo RPS. Varning! Koppla endast Ciscos RPS 300 (modell PWR300-AC-RPS-N1) till RPS-uttaget.

  • Page 117: Qualified Personnel Warning

    1.2.14.3 Service Personnel. Qualified Personnel Warning Warning Only trained and qualified personnel should be allowed to install or replace this equipment Waarschuwing Installatie en reparaties mogen uitsluitend door getraind en bevoegd personeel uitgevoerd worden. Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 118: Installation Warning

    Denna utrustning ska endast installeras och bytas ut av utbildad och kvalificerad personal. Installation Warning Warning Read the installation instructions before you connect the system to its power source. Waarschuwing Raadpleeg de installatie-aanwijzingen voordat u het systeem met de voeding verbindt. Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...
  • Page 119 Leia as instruções de instalação antes de ligar o sistema à sua fonte de energia. ¡Advertencia! Ver las instrucciones de instalación antes de conectar el sistema a la red de alimentación. Varning! Läs installationsanvisningarna innan du kopplar systemet till dess strömförsörjningsenhet. Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 120: Jewelry Removal Warning

    Schmuck (einschließlich Ringe, Ketten und Uhren) abnehmen. Metallgegenstände erhitzen sich, wenn sie an das Netz und die Erde angeschlossen werden, und können schwere Verbrennungen verursachen oder an die Anschlußklemmen angeschweißt werden. Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...
  • Page 121 är kopplad till kraftledningar. Metallobjekt hettas upp när de kopplas ihop med ström och jord och kan förorsaka allvarliga brännskador; metallobjekt kan också sammansvetsas med kontakterna. Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 122: Stacking The Chassis Warning

    Aviso Não coloque o chassis em cima de qualquer outro equipamento. Se o chassis cair, poderá causar ferimentos graves e danos no equipamento. Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 123: Main Disconnecting Device

    Ausschaltvorrichtung dient. Avvertenza Il gruppo spina-presa deve essere sempre accessibile, poiché viene utilizzato come dispositivo di scollegamento principale. Advarsel Kombinasjonen støpsel/uttak må alltid være tilgjengelig ettersom den fungerer som hovedfrakoplingsenhet. Catalyst 3550 Multilayer Switch Hardware Installation Guide 78-11358-03...

  • Page 124: Overtemperature Warning

    (7,6 cm) speling te laten rondom de ventilatie-openingen. Varoitus Estääksesi kytkimen ylikuumenemisen älä käytä sitä sellaisissa paikoissa, joiden lämpötila ylittää ympäristön enimmäislämpötilaksi suositellun 45°C. Jätä vähintään 7,6 cm:n vapaa tila tuuletusaukkojen ympärille, jotta ilma pääsee vapaasti virtaamaan. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-10 78-11358-03...
  • Page 125 àrea que exceda uma temperatura máxima de 45°C. Para evitar o bloqueamento da circulação de ar, deixe pelo menos um espaço de 7.6 cm em volta das aberturas de ventilação. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-11 78-11358-03...

  • Page 126: Ground Connection Warning

    Der Erdanschluß muß bei der Installation der Einheit immer zuerst hergestellt und zuletzt abgetrennt werden. Avvertenza In fase di installazione dell'unità, eseguire sempre per primo il collegamento a massa e disconnetterlo per ultimo. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-12 78-11358-03...

  • Page 127: Grounded Equipment Warning

    Host-Gerät während des normalen Betriebs an Erde gelegt ist. Avvertenza Questa apparecchiatura deve essere collegata a massa. Accertarsi che il dispositivo host sia collegato alla massa di terra durante il normale utilizzo. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-13 78-11358-03...

  • Page 128: Lightning Activity Warning

    Ne pas travailler sur le système ni brancher ou débrancher les câbles pendant un orage. Warnung Arbeiten Sie nicht am System und schließen Sie keine Kabel an bzw. trennen Sie keine ab, wenn es gewittert. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-14 78-11358-03...

  • Page 129: Product Disposal Warning

    Tämä tuote on hävitettävä kansallisten lakien ja määräysten mukaisesti. Attention La mise au rebut ou le recyclage de ce produit sont généralement soumis à des lois et/ou directives de respect de l'environnement. Renseignez-vous auprès de l'organisme compétent. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-15 78-11358-03...

  • Page 130: Chassis Warning-Rack-Mounting And Servicing

    If the rack is provided with stabilizing devices, install the • stabilizers before mounting or servicing the unit in the rack. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-16 78-11358-03...
  • Page 131 Jos laite asetetaan osaksi täytettyyn telineeseen, aloita kuormittaminen sen alaosasta kaikkein raskaimmalla esineellä ja siirry sitten sen yläosaan. Jos telinettä varten on vakaimet, asenna ne ennen laitteen • asettamista telineeseen tai sen huoltamista siinä. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-17 78-11358-03...
  • Page 132 Gestell ist das Gestell von unten nach oben zu laden, wobei das schwerste Bauteil unten im Gestell anzubringen ist. Wird das Gestell mit Stabilisierungszubehör geliefert, sind • zuerst die Stabilisatoren zu installieren, bevor Sie die Einheit im Gestell anbringen oder sie warten. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-18 78-11358-03...
  • Page 133 Hvis kabinettet er utstyrt med stabiliseringsutstyr, skal • stabilisatorene installeres før montering eller utføring av reparasjonsarbeid på enheten i kabinettet. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-19 78-11358-03...
  • Page 134 Se a estante possuir um dispositivo de estabilização, instale-o • antes de montar ou reparar a unidade. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-20 78-11358-03...
  • Page 135 • Om ställningen är försedd med stabiliseringsdon skall dessa monteras fast innan enheten installeras eller underhålls på ställningen. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-21 78-11358-03...

  • Page 136: Redundant Power System Connection Warning

    RPS-koblingsdeksel på baksiden av bryteren. Aviso Se um sistema de alimentação redundante (RPS) não estiver conectado a um switch, instale uma capa de conector RPS na parte de trás do switch. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-22 78-11358-03...

  • Page 137: Switch Installation Warning

    In conformità ai regolamenti di sicurezza, installare i dispositivi switch a muro con il pannello frontale rivolto in su. Advarsel For å etterkomme sikkerhetsreglene skal brytere monteres på en vegg med frontpanelet vendt opp. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-23 78-11358-03...

  • Page 138: Catalyst 3550-24-Dc Service Requirement

    The Catalyst 3550-24-DC contains no field-replaceable units (FRUs). Do not Warning open the chassis or attempt to remove or replace any components. For information about obtaining service for this unit, contact your reseller or Cisco sales representative. Waarschuwing De Catalyst 3550-24-DC bevat geen FRU's (field-replaceable units ofwel veldvervangbare eenheden).
  • Page 139 Translated Safety Warnings Catalyst 3550-24-DC Service Requirement Attention Le Catalyst 3550-24-DC ne dispose pas d'unités remplaçables sur site (FRU). Il est recommandé de ne pas ouvrir le châssis ni de retirer ou remplacer des composants. Pour plus de détails sur la maintenance de cette unité, contactez votre revendeur ou votre...

  • Page 140: Restricted Access Warning

    O equipamento é para ser instalado numa área de acesso restrito. ¡Advertencia! El equipo debe instalarse en una zona de acceso restringido. Varning! Utrustningen måste installeras på plats med åtkomst endast för behörig personal. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-26 78-11358-03...

  • Page 141: Shielded Ethernet Cables Warning

    Os cabos “Ethernet” deverão estar armados quando usados em ambiente de escritório central. ¡Advertencia! Los cables Ethernet deben estar protegidos cuando se usen dentro de una oficina central. Varning! Ethernetkablar måste vara avskärmade vid användning i central kontorsmiljö. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-27 78-11358-03...

  • Page 142: Dc Power Disconnection Warning

    Strom abgestellt ist, machen Sie auf der Schalttafel den Unterbrecher für die Gleichstromschaltung ausfindig, stellen Sie den Unterbrecher auf AUS, und kleben Sie den Schaltergriff des Unterbrechers mit Klebeband in der AUS-Stellung fest. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-28 78-11358-03...
  • Page 143 Innan du utför någon av följande procedurer måste du kontrollera att strömförsörjningen till likströmskretsen är bruten. Kontrollera att all strömförsörjning är BRUTEN genom att slå AV det överspänningsskydd som skyddar likströmskretsen och tejpa fast överspänningsskyddets omkopplare i FRÅN-läget. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-29 78-11358-03...

  • Page 144: Class 1 Laser Product Warning

    É possível que haja emissão de uma radiação de laser invisível a partir das portas dos orifícios do módulo do mecanismo supervisor de modo único 100BASE-FX. Evite expor-se a tal radiação e não fixe o seu olhar nos orifícios abertos. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-30 78-11358-03...

  • Page 145: Laser Beam Exposure Warning

    Schützen Sie sich vor Strahlung. Avvertenza Evitare l’esposizione al raggio. Advarsel Unngå å bli utsatt for strålen. Aviso Evite exposição ao raio. ¡Advertencia! Evitar la exposición al haz. Varning! Utsätt dig inte för laserstrålningen. Catalyst 3550 Multilayer Switch Hardware Installation Guide C-31 78-11358-03...
  • Page 146 Appendix C Translated Safety Warnings Laser Beam Exposure Warning Catalyst 3550 Multilayer Switch Hardware Installation Guide C-32 78-11358-03...

  • Page 147: I N D E X

    19- and 24-inch racks 1000BASE-LX/LX GBICs described 1000BASE-SX GBIC described AC power 1000BASE-T GBICs connecting to 2-24 connecting to 2-39 connector 1-23 connector adapter pinouts, terminal described RJ-45-to-DB-25 B-11 installing 2-22 RJ-45-to-DB-9 B-10 Catalyst 3550 Multilayer Switch Hardware Installation Guide IN-1 78-11358-03...

  • Page 148: Ports B

    2-40, B-6 ports to DC power 2-25 to 2-34 two twisted-pair pinout, 10/100 ports to GBIC module ports 2-38 to 2-40 See also connectors and cables connection procedures 2-34 to 2-41 Catalyst 3550 Multilayer Switch Hardware Installation Guide IN-2 78-11358-03...

  • Page 149: Console Port B

    10/100 ports features 1-1 to 1-5 four twisted-pair, 1000BASE-T ports feedback to Cisco Systems, web CWDM GBICs fiber-port specifications described front panel see also GBICS, supported 10/100/1000 ports 10/100 ports 100BASE-FX ports Catalyst 3550 Multilayer Switch Hardware Installation Guide IN-3 78-11358-03...
  • Page 150 POST results 2-34, 3-2 HP OpenView 1-25 1-16 humidity, relative A-1, A-2, A-3 speed 1-17 STATUS 1-17 system 1-16 UTIL 1-17 lightning activity warning C-14 to C-15 installation rack-mounting 2-9 to 2-17 Catalyst 3550 Multilayer Switch Hardware Installation Guide IN-4 78-11358-03...
  • Page 151 1000BASE-T GBIC packing list 1000BASE-X GBIC PC, connecting to switch 2-41 GigaStack GBIC performance problems, solving numbering of 10/100 pinouts numbering of 10/100/1000 10/100 ports 1000BASE-T GBIC port 1000BASE-X GBIC ports Catalyst 3550 Multilayer Switch Hardware Installation Guide IN-5 78-11358-03...
  • Page 152 SNMP network management platforms 1-25 software switch management 1-24 specifications rack-mounting 2-9 to 2-17 stacking the chassis warning C-8 to C-9 rear panel clearance description 1-21 to 1-24 redundant power supply Catalyst 3550 Multilayer Switch Hardware Installation Guide IN-6 78-11358-03...
  • Page 153 Telnet, and accessing the CLI 1-25 temperature, operating terminal, connecting to switch 2-41 terminal emulation software 2-40 translated warnings C-1 to C-31 troubleshooting 3-1 to 3-4 URLs, Cisco UTIL LED 1-17 Catalyst 3550 Multilayer Switch Hardware Installation Guide IN-7 78-11358-03...
  • Page 154 Index Catalyst 3550 Multilayer Switch Hardware Installation Guide IN-8 78-11358-03...

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