Cisco WS-C2950T-48-SI Hardware Installation Manual
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Cisco WS-C2950T-48-SI Hardware Installation Manual

Catalyst 2950 series switch
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Catalyst 2950 Switch
Hardware Installation Guide
August 2004
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:
Text Part Number: OL-6156-01
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Summary of Contents for Cisco WS-C2950T-48-SI

  • Page 1 Catalyst 2950 Switch Hardware Installation Guide August 2004 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: Text Part Number: OL-6156-01...
  • 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: Table Of Contents

    C O N T E N T S Cisco Limited Lifetime Hardware Warranty Terms Preface Audience Purpose Conventions Related Publications Obtaining Documentation xvii Cisco.com xvii Documentation CD-ROM xvii Ordering Documentation xvii Documentation Feedback xviii Obtaining Technical Assistance xviii Cisco TAC Website...
  • Page 4 Contents 1-21 Rear-Panel Description 1-22 Power Connectors 1-22 Internal Power Supply Connector 1-23 DC Power Connector 1-23 Cisco RPS Connector 1-24 Console Port 1-24 Management Options Installation C H A P T E R Preparing for Installation Warnings Installation Guidelines...
  • Page 5 Contents 2-35 Connecting to GBIC Module Ports 2-35 Connecting to 1000BASE-X GBIC Module Ports 2-36 Connecting to 1000BASE-T GBIC Module Ports 2-37 Connecting to GigaStack GBIC Module Ports 2-38 Connecting to SFP Modules 2-38 Connecting to Fiber-Optic SFP Modules 2-39 Connecting to 1000BASE-T SFP Modules 2-40 Where to Go Next...
  • Page 6 Contents Connecting to DC Power A P P E N D I X Preparing for Installation Grounding the Switch Wiring the DC-Input Power Source Configuring the Switch with the CLI-Based Setup Program A P P E N D I X Accessing the CLI Accessing the CLI Through Express Setup Accessing the CLI Through the Console Port...

  • Page 7: Cisco Limited Lifetime Hardware Warranty Terms

    Terms There are special terms applicable to your hardware warranty and various services that you can use during the warranty period. Follow these steps to access and download the Cisco Information Packet and your warranty document from Cisco.com. Launch your browser, and go to this URL: http://www.cisco.com/univercd/cc/td/doc/es_inpck/cetrans.htm...
  • Page 8 Duration of Hardware Warranty A Cisco product hardware warranty is supported for as long as the original end user continues to own or use the product, provided that the fan and power supply warranty is limited to five (5) years. In the event of a discontinuance of product manufacture, the Cisco warranty support is limited to five (5) years from the announcement of the discontinuance.

  • Page 9: Preface

    Preface Audience This guide is for the networking or computer technician responsible for installing a Catalyst 2950 switch, hereafter referred to as the switch. We assume that you are familiar with the concepts and terminology of Ethernet and local area networking. Purpose This guide describes the hardware features of the Catalyst 2950 switch.
  • Page 10 Preface Conventions Caution Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data. 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.
  • Page 11 Preface Conventions Warnung WICHTIGE SICHERHEITSHINWEISE Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu Verletzungen führen kann. Machen Sie sich vor der Arbeit mit Geräten mit den Gefahren elektrischer Schaltungen und den üblichen Verfahren zur Vorbeugung vor Unfällen vertraut. Suchen Sie mit der am Ende jeder Warnung angegebenen Anweisungsnummer nach der jeweiligen Übersetzung in den übersetzten Sicherheitshinweisen, die zusammen mit diesem Gerät ausgeliefert wurden.
  • Page 12 Preface Conventions Varning! VIKTIGA SÄKERHETSANVISNINGAR Denna varningssignal signalerar fara. Du befinner dig i en situation som kan leda till personskada. Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och känna till vanliga förfaranden för att förebygga olyckor. Använd det nummer som finns i slutet av varje varning för att hitta dess översättning i de översatta säkerhetsvarningar som medföljer denna anordning.
  • Page 13 Preface Conventions Aviso INSTRUÇÕES IMPORTANTES DE SEGURANÇA Este símbolo de aviso significa perigo. Você se encontra em uma situação em que há risco de lesões corporais. Antes de trabalhar com qualquer equipamento, esteja ciente dos riscos que envolvem os circuitos elétricos e familiarize-se com as práticas padrão de prevenção de acidentes. Use o número da declaração fornecido ao final de cada aviso para localizar sua tradução nos avisos de segurança traduzidos que acompanham o dispositivo.
  • Page 14 Preface Conventions Catalyst 2950 Switch Hardware Installation Guide OL-6156-01...

  • Page 15: Related Publications

    These documents provide complete information about the switch and are available from this URL: http://www.cisco.com/univercd/cc/td/doc/product/lan/cat2950/index.htm You can order printed copies of documents with a DOC-xxxxxx= number from the Cisco.com sites and from the telephone numbers listed in the “Ordering Documentation” section on page xvii.
  • Page 16 • • Catalyst 2950 Switch System Message Guide (order number DOC-7814981=) Release Notes for the Catalyst 2950 LRE Switch (not orderable but available on Cisco.com) • For other information about related products, see these documents: 1000BASE-T Gigabit Interface Converter Installation Notes (not orderable but available on •...

  • Page 17: Obtaining Documentation

    Cisco provides several ways to obtain documentation, technical assistance, and other technical resources. These sections explain how to obtain technical information from Cisco Systems. Cisco.com You can access the most current Cisco documentation on the World Wide Web at this URL: http://www.cisco.com/univercd/home/home.htm You can access the Cisco website at this URL: http://www.cisco.com...

  • Page 18: Documentation Feedback

    24 hours a day, 365 days a year. Accessing all the tools on the Cisco TAC website requires a Cisco.com user ID and password. If you have a valid service contract but do not have a login ID or password, register at this URL: http://tools.cisco.com/RPF/register/register.do...

  • Page 19: Tac Case Priority Definitions

    TAC Case Priority Definitions To ensure that all cases are reported in a standard format, Cisco has established case priority definitions. Priority 1 (P1)—Your network is “down” or there is a critical impact to your business operations. You and Cisco will commit all necessary resources around the clock to resolve the situation.
  • Page 20 Preface Obtaining Additional Publications and Information Internet Protocol Journal is a quarterly journal published by Cisco Systems for engineering • professionals involved in designing, developing, and operating public and private internets and intranets. You can access the Internet Protocol Journal at this URL: http://www.cisco.com/en/US/about/ac123/ac147/about_cisco_the_internet_protocol_journal.html...

  • Page 21: Chapter 1 Overview

    C H A P T E R Overview This chapter provides information about these topics: Setting up the Switch, page 1-1 • Features, page 1-1 • Front-Panel Description, page 1-3 • • Rear-Panel Description, page 1-21 Management Options, page 1-24 •...
  • Page 22 Chapter 1 Overview Features Catalyst 2950G-12-EI—12 10/100 Ethernet ports and 2 GBIC module slots – Catalyst 2950G-24-EI—24 10/100 Ethernet ports and 2 GBIC module slots – Catalyst 2950G-24-EI-DC—24 10/100 Ethernet ports and 2 GBIC module slots with – DC-input power Catalyst 2950G-48-EI—48 10/100 Ethernet ports and 2 GBIC module slots –...

  • Page 23: Front-Panel Description

    Connection for an optional Cisco RPS 300 redundant power system (RPS) that uses AC input – and supplies DC output to the switch Connection for an optional Cisco RPS 675 that uses AC input and supplies DC output to the – switch Certain Cisco LRE customer premises equipment (CPE) devices are not supported by certain Catalyst 2950 LRE switches.
  • Page 24 Chapter 1 Overview Front-Panel Description Figure 1-2 Catalyst 2950-24 Switch SYS T STA T UTIL DUP LX SPE ED 10 Ba se- T / 10 0B MOD E ase -TX Ca tal ys t 29 SER IES 10/100 ports Figure 1-3 Catalyst 2950C-24 Switch SYS T STA T...
  • Page 25 Chapter 1 Overview Front-Panel Description Figure 1-6 Catalyst 2950G-24-EI-DC Switch SYS T STA T UTIL DUP LX SPE ED MOD E Ca tal ys t 29 SER IES 10/100 ports GBIC module slots Figure 1-7 Catalyst 2950G-48-EI Switch SYS T STA T UTIL DUP LX...
  • Page 26 Chapter 1 Overview Front-Panel Description Figure 1-9 Catalyst 2950ST-24 LRE Switch Power connector port ports SYST CON SOL 10 11 RATI NG 100-1 27/20 STAT 1.0A /0.5A 0-240 V~ 50-60 HZ SPEE D MOD E 13 14 15 16 17 18 19 20 21 22 23 24...

  • Page 27: 10/100 Ports

    Chapter 1 Overview Front-Panel Description Figure 1-12 Catalyst 2950T-24 Switch SYS T STA T UTIL DUP LX SPE ED 10 Ba se- T / 10 0B MOD E ase -TX Ca tal ys t 29 SER IES 10 /10 0/1 00 Ba se- 10/100 ports 10/100/1000 ports...

  • Page 28: 10/100/1000 Ports

    Chapter 1 Overview Front-Panel Description When connecting the switch to workstations, servers, and routers, be sure that the cable is a twisted-pair Note straight-through cable. When connecting the switch to hubs or other switches, use a twisted-pair crossover cable. Pinouts for the cables are described in Appendix B, “Connectors and Cables.”...

  • Page 29: 100Base-Fx And 1000Base-Sx Ports

    LRE switches support which CPE devices. You can connect the Cisco 575 LRE CPE and Cisco 585 LRE CPE devices to LRE ports on the same Catalyst 2950ST-8 LRE or 2950ST-24 LRE switch. You can connect the Cisco 576 LRE CPE 997 device only to LRE ports on a Catalyst 2950ST-24 LRE 997 switch.

  • Page 30: Gbic Module Ports

    ID and recomputes the security code and CRC. If the serial number, the vendor name or 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 CWDM GBIC module, remove the module from the switch, and Note replace it with a Cisco-approved module.

  • Page 31: Sfp Module Slots

    Chapter 1 Overview Front-Panel Description SFP Module Slots On the Catalyst 2950 LRE switch, the SFP module slots support the SFP modules listed in the Catalyst 2950 LRE switch release notes. The Catalyst 2950 LRE switch has four physical input ports that are logically bundled as two ports. Each logical port consists of a copper 10/100/1000 port and a fiber-optic SFP module slot.
  • Page 32 ID and recomputes the security code and CRC. If the serial number, the vendor name or 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 SFP module, remove the module from the switch, and replace it Note with a Cisco-approved module.

  • Page 33: Leds

    Chapter 1 Overview Front-Panel Description LEDs You can use the LEDs to monitor switch activity and performance. The locations and numbers of the LEDs vary among switch models. The location of the Mode button that you use to select the port mode also varies by model.
  • Page 34 Chapter 1 Overview Front-Panel Description Figure 1-16 LEDs on Catalyst 2950G-12-EI, 2950G-24-EI, and 2950G-24-EI-DC Switches Port status LEDs System S Y S T R P S Port mode LEDs S T A T U T IL D U P L X S P E E D 11 X M O D E...
  • Page 35 Chapter 1 Overview Front-Panel Description Figure 1-18 LEDs on Catalyst 2950ST-8 LRE and 2950ST-24 LRE Switches System Redundant power system Port status LEDs S Y S T C O N S O R P S R A T IN G 1 0 0 -1 2 7 S T A T /2 0 0 -2 4 0...

  • Page 36: System Led

    (redundancy has been allocated to this device). For more information about the Cisco RPS 300, see the Cisco RPS 300 Redundant Power System Hardware Installation Guide. For more information about the Cisco RPS 675, see the Cisco RPS 675 Redundant Power System Hardware Installation Guide.
  • Page 37 Chapter 1 Overview Front-Panel Description Table 1-5 Port Mode LEDs Mode LED Port Mode Description STAT Port status The port status. This is the default mode. UTIL Switch utilization The bandwidth in use by the switch. DUPLX Port duplex mode The port duplex mode: half duplex or full duplex.
  • Page 38 Chapter 1 Overview Front-Panel Description Table 1-6 Meaning of Port LED Colors in Different Modes for Non-LRE Switches (continued) Port Mode Color Meaning SPEED 10/100 ports Port is operating at 10 Mbps. Green Port is operating at 100 Mbps. 10/100/1000 ports Port is operating at 10 Mbps.
  • Page 39 Chapter 1 Overview Front-Panel Description Table 1-7 Meaning of Port LED Colors in Different Modes for the LRE Switches (continued) Port Mode Color Meaning SPEED 10/100/1000 ports Port is operating at 10 Mbps. Green Port is operating at 100 Mbps. Flashing green Port is operating at 1000 Mbps.
  • Page 40 Chapter 1 Overview Front-Panel Description Figure 1-21 Bandwidth Utilization on Catalyst 2950-24, 2950C-24, 2950SX-24, and 2950T-24 Switches Catalyst 2950 SERIES 10Base-T / 100Base-TX 100Base-FX SYST STAT UTIL DUPLX SPEED MODE 0–0.0487%+ 6.25–12.4%+ 12.5–24%+ 25–49%+ 50%+ If all LEDs on a Catalyst 2950G-12-EI switch are green (no amber showing), the switch is using 50 percent or more of the total bandwidth.

  • Page 41: Rear-Panel Description

    Chapter 1 Overview Rear-Panel Description Figure 1-24 Bandwidth Utilization on Catalyst 2950G-48-EI, 2950SX-48-SI, and 2950T-48-SI Switches Catalyst 2950 11 12 13 14 15 16 19 20 21 22 23 24 25 26 27 28 29 31 31 32 35 36 37 38 39 40 41 42...

  • Page 42: Power Connectors

    AC power cord to connect the AC power connector to an AC power outlet. The AC power connector is on the front panel of the Catalyst 2950ST-8 LRE and Catalyst 2950ST-24 Note LRE switches. You can order these L-shaped AC power cords from your Cisco sales representative: CAB-NP1200-AC-AR= • CAB-NP1200-AC-AU= •...

  • Page 43: Dc Power Connector

    Cisco RPS 675 (model PWR675-AC-RPS-N1=) Cisco RPS 300 The Cisco RPS 300 has two output levels: –48 V and 12 V with a total maximum output power of 300 W. Use the supplied RPS connector cable to connect the RPS to the switch.

  • Page 44: Console Port

    You can connect a switch to a PC through the console port and the supplied RJ-45-to-DB-9 adapter cable. If you want to connect a switch to a terminal, you need to provide an RJ-45-to-DB-25 female DTE adapter. You can order a kit (part number ACS-DSBUASYN=) with that adapter from Cisco. For console-port and adapter-pinout information, see the “Cable and Adapter Specifications”...
  • Page 45 Cisco Intelligence Engine 2100 (IE2100) • The Cisco IE200 Series Configuration Registrar is a network management device that works with embedded Cisco Networking Services (CNS) agents in the switch software. You can automate initial configurations and configuration updates by generating switch-specific configuration changes, sending them to the switch, executing the configuration change, and logging the results.
  • Page 46 Chapter 1 Overview Management Options Catalyst 2950 Switch Hardware Installation Guide 1-26 OL-6156-01...

  • Page 47: Installation

    Warnings For translations of these warnings in several languages, see the Regulatory Compliance and Safety Information for the Catalyst 2950 Switch. Attach only the Cisco Redundant Power Supply (RPS) (model PWR300-AC-RPS-N1) to the RPS Warning receptacle. Statement 100B Catalyst 2950 Switch Hardware Installation Guide...

  • Page 48: Preparing For Installation

    Chapter 2 Installation Preparing for Installation Attach only the Cisco RPS (model PWR675-AC-RPS-N1) to the RPS receptacle. Statement 100C Warning Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement 1001 Read the installation instructions before connecting the system to the power source. Statement 1004...
  • Page 49 Warning attempt to remove or replace any components. For information about obtaining service for this unit, contact your reseller or Cisco sales representative. Statement 121C Warning The Catalyst 2950ST-24 LRE 997 contains no field-replaceable units (FRUs). Do not open the chassis or attempt to remove or replace any components.

  • Page 50: Installation Guidelines

    Chapter 2 Installation Preparing for Installation This unit is intended for installation in restricted access areas. A restricted access area can be Warning accessed only through the use of a special tool, lock and key, or other means of security. Statement 1017 Warning Ethernet cables must be shielded when used in a central office environment.

  • Page 51: Verifying Package Contents

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

  • Page 52: Verifying Switch Operation

    • If you want to connect a terminal to the switch console port, you need to provide an RJ-45-to-DB-25 female DTE adapter. You can order a kit (part number ACS-DSBUASYN=) with that adapter from Cisco. Verifying Switch Operation Before installing the switch in a rack, on a wall, or on a table or shelf, you should power on the switch and verify that the switch passes POST.

  • Page 53: Installing The Switch

    Installing a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI switch in a 23-inch Note or 24-inch rack requires an optional bracket kit not included with the switch. You can order a kit containing the 23-inch or 24-inch rack-mounting brackets and hardware from Cisco (part number RCKMNT-1RU=). Catalyst 2950 Switch Hardware Installation Guide...

  • Page 54: Attaching The Brackets To The Switch

    Chapter 2 Installation Installing the Switch Attaching the Brackets to the Switch The bracket orientation and the screws that you use depend on whether you are attaching the brackets to a 19-, 23-, or 24-inch rack. Follow these guidelines: When mounting a switch other than a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst •...
  • Page 55 Chapter 2 Installation Installing the Switch Figure 2-2 Attaching Brackets on the Switch in a 19-Inch Rack (Rear Panel Forward) C O N S O Number-8 Phillips flat-head screws Figure 2-3 Attaching Brackets on the Switch in a 19-Inch Telco Rack C O N S O Number-8 Phillips flat-head...
  • Page 56 Chapter 2 Installation Installing the Switch Figure 2-4 Attaching Brackets on a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI Switch in a 19-Inch Rack (Front Panel Forward) SY ST R PS ST AT U TI L D U PL X SP EE D 15 X M O D E...
  • Page 57 Chapter 2 Installation Installing the Switch Figure 2-6 Attaching Brackets on a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI Switch in a 19-Inch Telco Rack C O N SO Number-8 Phillips flat-head screws Figure 2-7 Attaching Brackets on the Catalyst 2950G-24-EI-DC or 2950ST-24 LRE 997 Switch in a 23-Inch Telco Rack (Front Panel Forward) SY ST R PS...
  • Page 58 Chapter 2 Installation Installing the Switch Figure 2-8 Attaching Brackets on the Catalyst 2950G-24-EI-DC or 2950ST-24 LRE 997 Switch in a 23-Inch Telco Rack (Rear Panel Forward) C O N S O Number-8 Phillips truss-head screws Figure 2-9 Attaching Brackets on the Catalyst 2950G-24-EI-DC or 2950ST-24 LRE 997 Switch in a 23-Inch Telco Rack C O N S O Number-8...
  • Page 59 Chapter 2 Installation Installing the Switch Figure 2-10 Attaching Brackets on the Switch in a 24-Inch Rack (Front Panel Forward) SY ST R PS ST AT U TI L D U PL X SP EE D 11 X M O D E Number-8 Phillips 12 X...
  • Page 60 Chapter 2 Installation Installing the Switch Figure 2-12 Attaching Brackets on the Switch in a 24-Inch Telco Rack C O N S O Number-8 Phillips truss-head screws Figure 2-13 Attaching Brackets on a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI Switch in a 24-Inch Rack (Front Panel Forward) SY ST RP S ST AT...
  • Page 61 Chapter 2 Installation Installing the Switch Figure 2-14 Attaching Brackets on a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI Switch in a 24-Inch Rack (Rear Panel Forward) C O N S O Phillips flat-head screws Figure 2-15 Attaching Brackets on a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI Switch in a 24-Inch Telco Rack Ca ta ly st 29 SER IES...

  • Page 62: Mounting The Switch In A Rack

    Chapter 2 Installation Installing the Switch Mounting the Switch in a Rack After attaching the brackets, use the four Phillips machine screws to securely attach the brackets to the rack, as shown in Figure 2-16. When installing a switch other than an LRE switch, to prevent the cables from obscuring the switch and other devices in the rack, you can also attach the cable guide to the rack.

  • Page 63: Installing The Switch On A Table, Shelf, Or Desk

    Chapter 2 Installation Installing the Switch Installing the Switch on a Table, Shelf, or Desk Before placing the switch on a table, shelf, or desk, locate the adhesive strip with rubber feet in the mounting-kit envelope, and attach four rubber feet to the recessed areas on the switch bottom. Place the switch on a table, shelf, or desk near an AC power source or DC-input power source.

  • Page 64: Attaching The Rps Connector Cover

    Chapter 2 Installation Installing the Switch Attaching the RPS Connector Cover If you are not using an RPS with your switch, use two number-4 Phillips pan-head screws to install an RPS connector cover to the back of the switch. (See Figure 2-19.) The pan-head screws are included in the accessory kit.

  • Page 65: Installing The Optional Ac Ground Kit For Catalyst 2950 Switches

    Installing the Optional AC Ground Kit for Catalyst 2950 Switches For switches that require a two-hole lug for grounding, you can order a kit containing the ground lug and hardware (Cisco part number NEBS-LUG-3550=). When you install the ground-lug kit, you cannot connect an RPS to the switch.
  • Page 66 Chapter 2 Installation Installing the Switch To ground the switch to earth ground, follow these steps. Make sure to follow any grounding requirements at your site. Use the two Phillips pan-head screws to attach the RPS connector cover to the back of the switch as Step 1 shown in Figure...
  • Page 67 Chapter 2 Installation Installing the Switch Figure 2-23 Crimping the Ground Lug Use the two number-10-32 screws to attach the ground lug and wire assembly to the switch rear panel Step 5 RPS connector cover, as shown in Figure 2-24. Using a ratcheting torque screwdriver, torque each ground-lug screw to 15 lbf-in.

  • Page 68: Installing The Gbic Modules

    Chapter 2 Installation Installing the GBIC Modules Installing the GBIC Modules Figure 2-25, Figure 2-26, and Figure 2-27 show how to insert a GBIC module in a GBIC module slot on the switch. For instructions on how to install a CWDM GBIC module in a GBIC module slot, see the documentation that came with that GBIC module.

  • Page 69: Installing And Removing Sfp Modules

    SFP module connections. Use only Cisco SFP modules on the Catalyst 2950 LRE switch. Each SFP module has an internal serial EEPROM that is encoded with security information. This encoding provides a way for Cisco to identify and validate that the SFP module meets the requirements for the switch.
  • Page 70 Chapter 2 Installation Installing and Removing SFP Modules Figure 2-28 SFP Module with a Mylar Tab Latch Figure 2-29 SFP Module with an Actuator Button Latch Figure 2-30 SFP Module with a Bale-Clasp Latch To insert an SFP module into the SFP module slot, follow these steps: Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.

  • Page 71: Removing Sfp Modules From Sfp Module Slots

    Chapter 2 Installation Installing and Removing SFP Modules Figure 2-31 Installing an SFP Module into an SFP Module Slot 1 9 2 0 2 1 2 2 2 3 2 4 C a ta ly s t 2 9 5 0 SE RI ES L R E For fiber-optic SFP modules, remove the dust plugs from the SFP module optical ports and store them...
  • Page 72 Chapter 2 Installation Installing and Removing SFP Modules Figure 2-32 Using the Mylar Tab Latch to Remove an SFP Module from a Slot 1 9 2 0 2 1 2 2 2 3 2 4 C a ta ly s t 2 9 5 0 SE RI ES L R E...

  • Page 73: Connecting To 10/100 And 10/100/1000 Ports

    Chapter 2 Installation Connecting to 10/100 and 10/100/1000 Ports Connecting to 10/100 and 10/100/1000 Ports The 10/100 ports configure themselves to operate at the speed and duplex settings of attached devices.They operate at 10 or 100 Mbps in half- or full-duplex mode. If the attached devices do not support autonegotiation, you can explicitly set the speed and duplex parameters.
  • Page 74 Chapter 2 Installation Connecting to 10/100 and 10/100/1000 Ports When connecting to servers, workstations, and routers, insert a twisted-pair straight-through cable in a Step 1 front-panel RJ-45 connector. Figure 2-35 shows the Catalyst 2950-12, 2950-24, 2950C-24, 2950SX-24, and 2950T-24 switch as an example. When connecting to switches or repeaters, insert a twisted-pair crossover cable.

  • Page 75: Connecting To 100Base-Fx And 1000Base-Sx Ports

    You can connect a 100BASE-FX or 1000BASE-SX 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 2-1. Use the Cisco part numbers in Table 2-1 to order the patch cables that you need.

  • Page 76: Connecting To An Lre Port

    Note LRE or Catalyst 2950ST-24 LRE switch. You can connect only the Cisco 576 LRE CPE 997 device to LRE ports on a Catalyst 2950ST-24 LRE 997 switch. You can hot swap the CPE devices without powering down the switch or disrupting the other switch ports.

  • Page 77: Limitations And Restrictions With Pots Splitters

    2950ST-24 LRE switch, Cisco 575 LRE CPE, and Cisco 585 LRE CPE. For installation instructions, see the Installation and Warranty Notes for the Cisco LRE 48 POTS Splitter. The Catalyst 2950ST-24 LRE 997 switch and Cisco 576 LRE 997 CPE are designed to share lines •...

  • Page 78: Required Cables

    • CAB-5-M180M120-5= (Category 5 cable with 120-degree, male-to-male RJ-21 connectors) The screws that you need to secure the cable to the switch are shipped with the cable. Contact your Cisco sales representative for more information. Connecting to a Patch Panel or POTS Splitter...
  • Page 79 Chapter 2 Installation Connecting to an LRE Port Figure 2-38 Connecting to an LRE Port on a Catalyst 2950ST-8 LRE or 2950ST-24 LRE Switch RJ-21 connector SY ST CO NS OL RP S 1 0 1 1 RA TIN G 10 0-1 27 ST AT /20 0-2 40...
  • Page 80 Cable tie wiring trunk Each LRE port status LED turns on when it establishes a link with a Cisco LRE CPE device. For more information about the LRE link between the switch LRE port and the CPE and about the configuration and management of CPE devices, see the switch software configuration guide.

  • Page 81: Connecting To Gbic Module Ports

    Chapter 2 Installation Connecting to GBIC Module Ports Connecting to GBIC Module Ports These sections describe how to connect to a GBIC module port. Connecting to 1000BASE-X GBIC Module Ports, page 2-35 • Connecting to 1000BASE-T GBIC Module Ports, page 2-36 •...

  • Page 82: Connecting To 1000Base-T Gbic Module Ports

    Chapter 2 Installation Connecting to GBIC Module Ports Figure 2-40 Connecting to a 1000 BASE-X GBIC Port C a ta ly s t 2 9 5 0 SE RI ES Insert the other cable end in a fiber-optic receptacle on a target device. Step 3 Observe the port status LED.

  • Page 83: Connecting To Gigastack Gbic Module Ports

    Chapter 2 Installation Connecting to GBIC Module Ports Figure 2-41 Connecting to a 1000BASE-T GBIC Port C a ta ly s t 2 9 5 0 SE RI ES Insert the other cable end in an RJ-45 connector on a target device. Step 2 Observe the port status LED.

  • Page 84: Connecting To Sfp Modules

    Chapter 2 Installation Connecting to SFP Modules Observe the port status LED. Step 3 The LED turns green when the switch and the target device have an established link. The LED turns amber while STP discovers the network topology and searches for loops. This process takes about 30 seconds, and then the port LED turns green.

  • Page 85: Connecting To 1000Base-T Sfp Modules

    Chapter 2 Installation Connecting to SFP Modules If the LED is off, the target device might not be turned on, there might be a cable problem, or there might be problem with the adapter installed in the target device. See Chapter 3, “Troubleshooting,”...

  • Page 86: Where To Go Next

    For more information, see the device manager online help. Start the Network Assistant application, which is described in the Getting Started with Cisco • Network Assistant guide. Through this GUI, you can configure and monitor a switch cluster or an individual switch.

  • Page 87: Chapter 3 Troubleshooting

    When the switch begins POST, the system LED is off. POST has completed successfully when the SYST and STAT LEDs are green. POST failures are usually fatal. Call Cisco Systems if your switch does not pass POST. Note...

  • Page 88: Diagnosing Problems

    Chapter 3 Troubleshooting Diagnosing Problems Table 3-1 Common Problems and Solutions Symptom Possible Cause Resolution Poor performance or Duplex autonegotiation mismatch. See the switch software excessive errors. configuration guide for information about identifying autonegotiation mismatches. Cabling distance exceeded. Port statistics show excessive See the switch software •...
  • Page 89 Check if the fan has failed • • by using the show env fan privileged EXEC command. If the fan has failed, call Cisco Systems. Nonfatal or fatal POST error Use the show post • • detected. privileged EXEC command to see which POST test failed.
  • Page 90 Cisco LRE CPE is not Reduce cable length to • communicating with within the recommended Catalyst 2950 LRE switch, or Cisco distances. (See the “LRE LRE CPE might be attempting to Port” section on page 1-9 exceed the rate or the reach selected for LRE cabling by the switch.

  • Page 91: Appendix

    (autoranging) 50 to 60 Hz DC input voltages for the Cisco RPS 300 Redundant +12 V @4.5 A Power System DC input voltages for the Cisco RPS 675 +12 V @4.5 A Power consumption 30 W (maximum) 102 Btus per hour Power rating 0.05 kVA...

  • Page 92: Appendix A Technical Specification

    @4.5 A Cisco RPS DC input voltage for the +12 V @4.5 A +12 V @4.5 A Cisco RPS 675 Power consumption 30 W (maximum) 45 W (maximum) 102 Btus per hour 154 Btus per hour Power rating 0.05 kVA 0.075 kVA...
  • Page 93 100 to 127/200 to 240 VAC (autoranging) 50 to 60 Hz DC input voltage for the Cisco RPS +12 V @4 A DC input voltage for the Cisco RPS 675 +12 V @4 A Power consumption 50W (maximum) 171 Btus per hour Power rating 0.083 kVA...
  • Page 94 Appendix A Technical Specifications 1. This switch meets ASTM D3332. 2. RPS = redundant power system Table A-5 Technical Specifications for Catalyst-2950ST-24 997 LRE Switches Environmental Ranges Operating temperature 32 to 113°F (0 to 45°C) Storage temperature –13 to 158°F (–25 to 70°C) Operating humidity 10 to 85% (noncondensing) Operating altitude...
  • Page 95 Appendix A Technical Specifications Table A-6 Fiber-Optic Port Specifications for Catalyst 2950C-24, Catalyst 2950SX-24, and Catalyst 2950 LRE Switches Catalyst 2950ST-8 LRE, 2950ST-24 LRE, and Fiber-Port Power Levels Catalyst 2950C-24 Catalyst 2950SX-24 2950ST-24 LRE 997 Optical transmitter 1300 nm 850 nm The transmitter wavelength wavelengths, receiver...
  • Page 96 Appendix A Technical Specifications Table A-8 Catalyst 2950ST-8 LRE and 2950ST-24 LRE Switch Agency Approvals (continued) Safety TUV-GS to EN60950 with Amendments EN 55024: ITE Immunity Standard. (CE Mark), 1998 A1 through A4 and A11 EN61000-4-2/IEC1000-4-2: Immunity to ESD EN61000-4-3/IEC1000-4-3: Immunity to Radio Frequency Electromagnetic Fields EN61000-4-4/IEC1000-4-4: Immunity to Electrical Fast Transients...
  • Page 97 Appendix A Technical Specifications Table A-10 Catalyst 2950G-24-EI-DC Switch Agency Approvals NEBS Bellcore GR-1089-CORE Bellcore GR-63-CORE Bellcore SR-3580 Level 3 Catalyst 2950 Switch Hardware Installation Guide OL-6156-01...
  • Page 98 Appendix A Technical Specifications Catalyst 2950 Switch Hardware Installation Guide OL-6156-01...

  • Page 99: Appendix

    A P P E N D I X Connectors and Cables This appendix describes the connectors, cables, and adapters that you use to connect the switch to other devices. Connector Specifications These sections describe the connectors used with the Catalyst 2950 switches and contains this information: 10/100 Ports, page B-1 •...

  • Page 100: 10/100/1000 Ports

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

  • Page 101: Connecting To 1000Base-T Devices

    Appendix B Connectors and Cables Connector Specifications Connecting to 1000BASE-T Devices When connecting the ports to 1000BASE-T devices, such as servers, workstations, and routers, you must use a four twisted-pair, Category 5, straight-through cable wired for 10BASE-T, 100BASE-TX, and 1000BASE-T. Figure B-14 shows the straight-through cable schematics.

  • Page 102: 100Base-Fx And 1000Base-Sx Ports

    You can connect a 100BASE-FX or 1000BASE-SX 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 2-1 on page 2-29. Use the Cisco part numbers Table 2-1 to order the patch cables that you need.

  • Page 103: Sfp Module Ports

    RJ-45-to-DB-9 adapter cable. If you want to connect a switch to a terminal, you need to provide an RJ-45-to-DB-25 female DTE adapter. You can order a kit (part number ACS-DSBUASYN=) with that adapter from Cisco. For console-port and adapter-pinout information, see Table B-3 Table B-4.

  • Page 104: Cable And Adapter Specifications

    Appendix B Connectors and Cables Cable and Adapter Specifications Figure B-9 Identifying a Crossover Cable Pin 1 on one connector and pin 8 on the other connector should be the same color. Pin 1 Pin 8 Cable and Adapter Specifications These sections describe the cables and adapters used with Catalyst 2950 switches.

  • Page 105: Four Twisted-Pair Cable Pinouts For 10/100 Ports

    Appendix B Connectors and Cables Cable and Adapter Specifications Four Twisted-Pair Cable Pinouts for 10/100 Ports Figure B-12 Figure B-13 show the schematics of four twisted-pair cables for 10/100 ports. Figure B-12 Four Twisted-Pair Straight-Through Cable Schematic for 10/100 Ports Switch Router or PC 1 RD+...

  • Page 106: Four Twisted-Pair Cable Pinouts For 1000Base-T Ports

    Appendix B Connectors and Cables Cable and Adapter Specifications Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports Figure B-14 Figure B-15 show the schematics of four twisted-pair cables for 10/100/1000 ports on Catalyst 2950T-24 switches, Catalyst 2950 LRE switches, and 1000BASE-T GBIC module ports. Figure B-14 Four Twisted-Pair Straight-Through Cable Schematic for 10/100/1000 and 1000BASE-T GBIC Module Ports Switch...
  • Page 107 Appendix B Connectors and Cables Cable and Adapter Specifications Table B-1 Catalyst 2950ST-24 LRE and Catalyst 2950ST-24 LRE 997 Switch RJ-21 Cable Pinouts Function Function Port 5 Tip Port 5 Ring Port 6 Tip Port 6 Ring Port 7 Tip Port 7 Ring Port 8 Tip Port 8 Ring...

  • Page 108: Adapter Pinouts

    Appendix B Connectors and Cables Cable and Adapter Specifications Table B-2 Catalyst 2950ST-8 LRE Switch RJ-21 Cable Pinouts (continued) Function Function No connect No connect No connect No connect No connect No connect No connect No connect No connect No connect No connect No connect No connect...
  • Page 109 RJ-45-to-DB-25 female DTE adapter, and the console device. The RJ-45-to-DB-25 female DTE adapter is not supplied with the switch. You can order a kit (part Note number ACS-DSBUASYN=) with that adapter from Cisco. Table B-4 Console Port Signaling and Cabling Using a DB-25 Adapter Console...
  • Page 110 Appendix B Connectors and Cables Cable and Adapter Specifications Catalyst 2950 Switch Hardware Installation Guide B-12 OL-6156-01...

  • Page 111: Appendix

    For information about obtaining service for this unit, contact your reseller or Cisco sales representative. Statement 121C The Catalyst 2950ST-24 LRE 997 contains no field-replaceable units (FRUs). Do not open the chassis or Warning attempt to remove or replace any components.

  • Page 112: Preparing For Installation

    Appendix C Connecting to DC Power Preparing for Installation Preparing for Installation Locate the DC terminal block plug, the ground lug, and the two number-10-32 screws in the DC-switch kit. Obtain these necessary tools and equipment: Ratcheting torque screwdriver with a Phillips head that exerts up to 15 pound-force inches (lbf-in.) •...
  • Page 113 Appendix C Connecting to DC Power Grounding the Switch Figure C-1 Stripping the Ground Wire 0.5 in. (12.7 mm) ± 0.02 in. (0.5 mm) Wire lead Insulation Slide the open end of the ground lug over the exposed area of the 6-gauge wire. Step 3 Step 4 Using a Panduit crimping tool, crimp the ground lug to the 6-gauge wire.

  • Page 114: Wiring The Dc-Input Power Source

    Appendix C Connecting to DC Power Wiring the DC-Input Power Source Figure C-3 Torquing Ground-Lug Screws 36 - 72 V DC IN PU 1 - 0.5 A T FO R RE PO W ER M OT E SU PP LY SP EC IF IE D IN M AN UA L.

  • Page 115: Figure

    Appendix C Connecting to DC Power Wiring the DC-Input Power Source To wire the switch to a DC-input power source, follow these steps: Locate the terminal block plug (see Figure C-4). Step 1 Figure C-4 Terminal Block Plug Identify the positive and negative feed positions for the terminal block connection. The wiring sequence Step 2 is positive to positive and negative to negative for both the A and the B feed wires.
  • Page 116 Appendix C Connecting to DC Power Wiring the DC-Input Power Source Insert the exposed wire of one of the four DC-input power source wires into the terminal block plug, as Step 4 shown in Figure C-7. Make sure that you cannot see any wire lead. Only wire with insulation should extend from the terminal block.
  • Page 117 Appendix C Connecting to DC Power Wiring the DC-Input Power Source Repeat Steps 4 and 5 for the remaining three DC-input power source wires. Figure C-9 shows the Step 6 completed wiring of a terminal block plug. Figure C-9 Completed Wiring of Terminal Block Plug Return Feed A Negative...
  • Page 118 Appendix C Connecting to DC Power Wiring the DC-Input Power Source Catalyst 2950 Switch Hardware Installation Guide OL-6156-01...

  • Page 119: Appendix

    Accessing the CLI Through Express Setup Express Setup is supported on switches running Cisco IOS Release 12.1(14)EA1 or later. If you are installing an unconfigured switch, see the Cisco IOS release label on the rear panel of the switch to determine the release.

  • Page 120: Accessing The Cli Through The Console Port

    Appendix D Configuring the Switch with the CLI-Based Setup Program Accessing the CLI After the switch is in Express Setup mode, open a Telnet session to the switch by entering the IP address 10.0.0.1. Enter the setup user EXEC command. See these sections in this chapter to then configure the switch by using the CLI: •...

  • Page 121: Taking Out What You Need

    Appendix D Configuring the Switch with the CLI-Based Setup Program Taking Out What You Need Taking Out What You Need Remove the items shown in Figure D-1 from the shipping container: Figure D-1 Catalyst 2950 Switch, Adapter Cable, and AC Power Cord SYST STAT UTIL...

  • Page 122: Starting The Terminal-Emulation Software

    Appendix D Configuring the Switch with the CLI-Based Setup Program Starting the Terminal-Emulation Software Figure D-2 Connecting a Switch to a PC RA TIN G DC INP UT 10 0-1 27 FO R RE PO WE R MO TE @ 1A SP EC IFI SU PP LY 20 0-2 40...

  • Page 123: Connecting To A Power Source

    AC power cord to the connector on the switch rear panel. Step 2 Connect the other end of the power cable to a grounded AC outlet. If you are connecting the switch to a Cisco redundant power system (RPS), see the documentation that Note shipped with your RPS.

  • Page 124: Completing The Setup Program

    Appendix D Configuring the Switch with the CLI-Based Setup Program Entering the Initial Configuration Information Completing the Setup Program Follow these steps to complete the setup program and to create an initial configuration for the switch: Enter Yes at these two prompts. Step 1 Would you like to enter the initial configuration dialog? [yes/no]: yes At any point you may enter a question mark '?' for help.
  • Page 125 Appendix D Configuring the Switch with the CLI-Based Setup Program Entering the Initial Configuration Information Configure the interface by entering the switch IP address and subnet mask and pressing Return. The IP Step 8 address and subnet masks shown below are examples. Configuring interface vlan1: Configure IP on this interface? [yes]: yes IP address for this interface: 10.4.120.106...
  • Page 126 Telnet. For configuration information, see the switch software configuration guide or the switch command reference. To use the Network Assistant, see the Getting Started with Cisco Network Assistant guide. Catalyst 2950 Switch Hardware Installation Guide...

  • Page 127: I N D E X

    I N D E X illustrated 3-22 Numerics installing 3-22 10/100/1000 ports 100BASE-FX ports cable lengths 2-11, 3-4 cable lengths connecting to 3-27 to 3-28 connecting to 3-29 to 3-30 connectors and cables B-2 to B-3 connectors and cables described described illustrated 2-6 to 2-7...
  • Page 128 B-1 to B-2 cautions, defined 1000BASE-SX ports chassis warnings 1000BASE-T GBIC module ports rack-mounting, servicing 1000BASE-X GBIC module ports Cisco IE2100 2-25 100BASE-FX ports Cisco IE2100 Series Configuration Registrar console port See Cisco IE2100 Catalyst 2950 Switch Hardware Installation Guide IN-2 OL-6156-01...
  • Page 129 3-35 fan problems, solving described 2-10 features 2-1 to 2-3 installing 3-22 feedback to Cisco Systems, web xviii fiber-optic port specifications front panel 10/100/1000 ports DC power 10/100 ports 2-7 to 2-8 connecting to C-1 to C-7...
  • Page 130 Index GBIC module ports 2-10 illustrated 2-3 to 2-7 HP OpenView 2-24 LEDs 2-13 to 2-15 humidity A-1 to A-4 LRE ports SFP module ports 2-11 installation assigning the IP Address GBIC modules cable guide 3-16 cable lengths connecting to a power source cables connecting to LRE ports 3-30 to 3-34...
  • Page 131 Index port 2-16 port mode 2-16 to 2-19 Network Assistant port status 2-16 getting started guide 2-16 to configure switch 3-40 speed (SPEED) 2-17 to 2-19 viewing LEDs 2-13 status (STAT) 2-17, 2-18 network configuration examples system 2-16 Network Manager utilization (UTIL) 2-17 described...
  • Page 132 Index RJ-45-to-DB-9 PC adapter cable B-10 straight-through cables rack-mounting four twisted-pair, 10/100 ports bracket mounting points 3-8 to 3-15 four twisted-pair, 1000BASE-T ports procedures 3-7 to 3-16 two twisted-pair warning port rear panel LEDs 2-13 to 2-15, 2-16 clearance mode console port connector 2-24 LEDs...
  • Page 133 Index Mylar tab latch illustrated 3-24 uplink ports, LRE removing 3-25 URLs, Cisco xvii removing 3-25 to 3-26 utilization SFP ports, illustrated bandwidth 2-17 to 2-21 shelf-mounting 3-17 2-17 SNMP network management platforms 2-24 software switch management 2-24 specifications A-1 to A-7...
  • Page 134 Index Catalyst 2950 Switch Hardware Installation Guide IN-8 OL-6156-01...

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