Catalyst 3750 Switch Hardware Installation Guide November 2004 Corporate Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.
CCSP, the Cisco Square Bridge logo, Cisco Unity, Follow Me Browsing, FormShare, and StackWise are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn, and iQuick Study are service marks of Cisco Systems, Inc.
C O N T E N T S Cisco Limited Lifetime Hardware Warranty Terms xi Preface xv Audience xv Purpose xv Conventions xvi Related Publications xxiv Obtaining Documentation xxv Cisco.
Contents LEDs 1-15 System LED 1-18 RPS LED 1-18 Master LED 1-19 Port LEDs and Modes 1-19 Rear Panel Description 1-25 StackWise Ports 1-27 Power Connectors 1-28 Internal Power Supply Connector 1-28 Cisco RPS Connector 1-28 Console Port 1-29 Management Options 1-29 Network Configurations 1-30 CHAPTER 2 Switch Installation 2-1 Preparing for Installation 2-2 Warnings 2-2 Installation Guidelines 2-6 Verifying Package Contents 2-8 Verifying Switch Operation 2-9 Powering On the Switch and Running POST 2-9 Powe
Contents Installing the Switch 2-16 Rack-Mounting 2-16 Removing Screws from the Switch 2-17 Attaching Brackets to the Catalyst 3750G-24TS Switch 2-19 Attaching Brackets to the Catalyst 3750-24TS, 3750G-24TS-1U, 3750G-24T, 3750G-12S, 3750-24PS, 3750G-24PS, 3750-48PS, 3750G-48PS, 3750G-16TD, 3750-48TS, and 3750G-48TS Switches 2-24 Mounting the Switch in a Rack 2-27 Attaching the Cable Guide 2-29 Wall-Mounting 2-31 Attaching the Brackets to the Switch for Wall-Mounting 2-31 Attaching the RPS Connector Cover 2
Contents CHAPTER Troubleshooting 3-1 3 Understanding POST Results 3-1 Diagnosing Problems 3-3 Replacing a Failed Stack Member 3-8 APPENDIX A Technical Specifications A-1 APPENDIX B Connector and Cable Specifications B-1 Connector Specifications B-1 10/100 and 10/100 /1000 Ports B-2 SFP Module Ports B-3 XENPAK Module Ports B-4 Console Port B-4 Cable and Adapter Specifications B-5 Two Twisted-Pair Cable Pinouts B-5 Four Twisted-Pair Cable Pinouts for 10/100 Ports B-6 Four Twisted-Pair Cable Pinouts
Contents Starting the Terminal Emulation Software C-9 Connecting to a Power Source C-9 Entering the Initial Configuration Information C-11 IP Settings C-11 Completing the Setup Program C-11 INDEX Catalyst 3750 Switch Hardware Installation Guide OL-6336-01 ix
Contents Catalyst 3750 Switch Hardware Installation Guide x OL-6336-01
Cisco Limited Lifetime Hardware Warranty Terms There are special terms applicable to your hardware warranty and various services that you can use during the warranty period. Your formal Warranty Statement, including the warranty applicable to Cisco software, is included on the Cisco Documentation CD and on Cisco.com. Follow these steps to access and download the Cisco Information Packet and your warranty document from the CD or Cisco.com. 1. Launch your browser, and go to this URL: http://www.cisco.
Cisco Limited Lifetime Hardware Warranty Terms Note 3. You must have Adobe Acrobat Reader to view and print PDF files. You can download the reader from Adobe’s website: http://www.adobe.com To read translated and localized warranty information about your product, follow these steps: a. Enter this part number in the Warranty Document Number field: 78-6310-02C0 b. Select the language in which you would like to view the document. c. Click Go. The Cisco warranty page appears. d.
Cisco Limited Lifetime Hardware Warranty Terms Complete the information below, and keep it for reference.
Cisco Limited Lifetime Hardware Warranty Terms Catalyst 3750 Switch Hardware Installation Guide xiv OL-6336-01
Preface Audience This guide is for the networking or computer technician responsible for installing the Catalyst 3750 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 3750 family of switches. It describes the physical and performance characteristics of each switch, explains how to install a switch, and provides troubleshooting information.
Preface Conventions Conventions This document uses these conventions and symbols for notes, cautions, and warnings: Note Caution Warning Means reader take note. Notes contain helpful suggestions or references to materials not contained in this manual. Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data. IMPORTANT SAFETY INSTRUCTIONS This warning symbol means danger. You are in a situation that could cause bodily injury.
Preface Conventions Varoitus TÄRKEITÄ TURVALLISUUSOHJEITA Tämä varoitusmerkki merkitsee vaaraa. Tilanne voi aiheuttaa ruumiillisia vammoja. Ennen kuin käsittelet laitteistoa, huomioi sähköpiirien käsittelemiseen liittyvät riskit ja tutustu onnettomuuksien yleisiin ehkäisytapoihin. Turvallisuusvaroitusten käännökset löytyvät laitteen mukana toimitettujen käännettyjen turvallisuusvaroitusten joukosta varoitusten lopussa näkyvien lausuntonumeroiden avulla.
Preface Conventions Avvertenza IMPORTANTI ISTRUZIONI SULLA SICUREZZA Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di intervenire su qualsiasi apparecchiatura, occorre essere al corrente dei pericoli relativi ai circuiti elettrici e conoscere le procedure standard per la prevenzione di incidenti.
Preface Conventions ¡Advertencia! INSTRUCCIONES IMPORTANTES DE SEGURIDAD Este símbolo de aviso indica peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considere los riesgos de la corriente eléctrica y familiarícese con los procedimientos estándar de prevención de accidentes. Al final de cada advertencia encontrará el número que le ayudará a encontrar el texto traducido en el apartado de traducciones que acompaña a este dispositivo.
Preface Conventions Catalyst 3750 Switch Hardware Installation Guide xx OL-6336-01
Preface Conventions Catalyst 3750 Switch Hardware Installation Guide OL-6336-01 xxi
Preface Conventions Catalyst 3750 Switch Hardware Installation Guide xxii OL-6336-01
Preface Conventions Catalyst 3750 Switch Hardware Installation Guide OL-6336-01 xxiii
Preface Related Publications Related Publications You can order printed copies of documents with a DOC-xxxxxx= number. For more information, see the “Obtaining Documentation” section on page xxv. 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/cat3750/index.
Preface Obtaining Documentation Obtaining Documentation Cisco documentation and additional literature are available on Cisco.com. Cisco also provides several ways to obtain 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.
Preface Documentation Feedback Documentation Feedback You can submit e-mail comments about technical documentation to bug-doc@cisco.com. You can submit comments by using the response card (if present) behind the front cover of your document or by writing to the following address: Cisco Systems Attn: Customer Document Ordering 170 West Tasman Drive San Jose, CA 95134-9883 We appreciate your comments.
Preface Obtaining Technical Assistance Opening a TAC Case Using the online TAC Case Open Tool is the fastest way to open P3 and P4 cases. (P3 and P4 cases are those in which your network is minimally impaired or for which you require product information.) After you describe your situation, the TAC Case Open Tool automatically recommends resources for an immediate solution. If your issue is not resolved using the recommended resources, your case will be assigned to a Cisco TAC engineer.
Preface Obtaining Additional Publications and Information Priority 4 (P4)—You require information or assistance with Cisco product capabilities, installation, or configuration. There is little or no effect on your business operations. Obtaining Additional Publications and Information Information about Cisco products, technologies, and network solutions is available from various online and printed sources. • Cisco Marketplace provides a variety of Cisco books, reference guides, and logo merchandise.
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/ipj • Training—Cisco offers world-class networking training. Current offerings in network training are listed at this URL: http://www.cisco.com/en/US/learning/index.
Preface Obtaining Additional Publications and Information Catalyst 3750 Switch Hardware Installation Guide xxx OL-6336-01
C H A P T E R 1 Product Overview The Catalyst 3750 family of switches—also referred to as the switches—are stackable Ethernet switches to which you can connect devices like Cisco IP Phones, Cisco Wireless Access Points workstations, and other network devices such as servers, routers, and other switches. This chapter provides a functional overview of the Catalyst 3750 switch models.
Chapter 1 Product Overview Features Figure 1-1 through Figure 1-12 show the Catalyst 3750 switches.
Chapter 1 Product Overview Features • The switches support these SFP modules: – 1000BASE-SX – 1000BASE-LX – 1000BASE-ZX – 100BASE-FX – 1000BASE-T – CWDM Note When installed in Catalyst 3750 switches, 1000BASE-T SFP modules can either operate at 10, 100, or 1000 Mbps in full-duplex mode or in half-duplex mode at 10 or 100 Mbps. • For a list of the XENPAK modules that the Catalyst 3750G-16TD switch supports, see the Catalyst 3750 release notes.
Chapter 1 Product Overview Front Panel Description Front Panel Description The Catalyst 3750-24TS 10/100 ports are numbered 1 through 24. The ports are grouped in pairs. The first member of the pair (port 1) is above the second member (port 2), as shown in Figure 1-1. Port 3 is above port 4, and so on. The SFP module slots are numbered 1 (left) and 2 (right).
Chapter 1 Product Overview Front Panel Description SYST RPS MASTR STAT DUPLX SPEED STACK Catalyst 3750G-24T Front Panel 1 2 3 4 1X 5 6 7 8 9 10 11 86543 Figure 1-2 12 MODE 11X 13 14 15 16 13X 2X 17 18 19 20 21 22 23 24 Catalyst 3750 SERIE 23X 12X S 14X 24X 1 1 10/100/1000 ports SYST RPS MASTR STAT DUPLX SPEED STACK Catalyst 3750G-24TS FrontPanel 1 1X 2 3 4 5 6 7 8 9 10 11 12 MODE 11X 13 13X 2X 14 15 16 17 18 Catalyst 3750 SERIE 19 20 21 22
Chapter 1 Product Overview Front Panel Description Catalyst 3750G-24TS-1U Front Panel SYST RPS MASTR STAT DUPLX SPEED STACK 1 2 1X MODE 3 4 5 6 7 8 9 10 11 12 13 11X 14 15 16 13X 17 18 19 20 21 22 23 2X Catalys t 3750 SERIE 24 S 119768 Figure 1-4 23X 25 12X 27 14X 24X 26 28 1 2 1 10/100/1000 ports 2 SFP module slots The Catalyst 3750G-12S SFP module slots are numbered 1 through 12. The slots are grouped in three sets of four, as shown in Figure 1-5.
Chapter 1 Product Overview Front Panel Description 1 SYST RPS MASTR STAT DUPLX SPEED STACK 2 3 4 5 1X 6 7 Catalyst 3750-48TS Front Panel 8 9 10 11 12 13 14 15 16 17 18 19 20 15X 17X 21 22 23 24 25 26 2X MODE 27 28 29 30 31 86542 Figure 1-6 32 33 34 35 36 37 31X 33X 38 39 40 41 42 16X 18X 43 44 45 46 47 Catalyst 3750 SERIE 48 S 47X 32X 34X 1 3 2 48X 4 1 2 1 2 10/100 ports SFP module slots The Catalyst 3750G-48TS 10/100/1000 ports are numbered
Chapter 1 Product Overview Front Panel Description The 10/100 PoE ports on the Catalyst 3750-24PS switch are grouped in pairs. The first member of the pair (port 1) is above the second member (port 2), as shown in Figure 1-8. Port 3 is above port 4, and so on. The SFP module slots are numbered 1 and 2.
Chapter 1 Product Overview Front Panel Description Catalyst 3750G-24PS Switch Front Panel SYST RPS MASTR STAT DUPLX SPEED STACK PoE 1 2 3 4 1X MODE 5 6 7 8 9 10 11 12 13 11X 14 15 13X 16 17 18 19 20 21 22 23 2X Catalyst 3750 24 G SERIES PoE- 24 119769 Figure 1-9 23X 25 12X 27 14X 24X 26 28 1 2 1 2 10/100/1000 PoE ports SFP module slots The 10/100 PoE ports on the Catalyst 3750-48PS switch are grouped in pairs.
Chapter 1 Product Overview Front Panel Description The 10/100/1000 PoE ports on the Catalyst 3750G-48PS switch are grouped in pairs. The first member of the pair (port 1) is above the second member (port 2), as shown in Figure 1-11. Port 3 is above port 4, and so on. The SFP module slots are numbered 49 to 52.
Chapter 1 Product Overview Front Panel Description SYST RPS MASTR STAT DUPLX SPEED STACK Catalyst 3750G-16TD Switch Front Panel 1 1X 2 3 4 5 6 7 8 9 10 11 12 13 14 15 104572 Figure 1-12 16 MODE 15X 2X Catalyst 3750 16X series 1 TX RX 1 2 1 10/100/1000 ports 2 XENPAK module slot 10/100 and 10/100/1000 Ports You can set the 10/100 ports on the Catalyst 3750 switches to operate in any combination of half duplex, full duplex, 10 Mbps, or 100 Mbps.
Chapter 1 Product Overview Front Panel Description Warning Voltages that present a shock hazard may exist on Power over Ethernet (PoE) circuits if interconnections are made using uninsulated exposed metal contacts, conductors, or terminals. Avoid using such interconnection methods, unless the exposed metal parts are located within a restricted access location and users and service people who are authorized within the restricted access location are made aware of the hazard.
Chapter 1 Product Overview Front Panel Description powered device first boots up in low-power mode, consumes less than 7 W, and negotiates to obtain enough power to operate in high-power mode. The device changes to high-power mode only when it receives confirmation from the switch. High-power devices can operate in low-power mode on switches that do not support power-negotiation CDP.
Chapter 1 Product Overview Front Panel Description Note You can use the mdix auto interface configuration command in the CLI to enable the automatic medium-dependent interface crossover (Auto-MDIX) feature. When the Auto-MDIX feature is enabled, the switch detects the required cable type for copper Ethernet connections and configures the interfaces accordingly.
Chapter 1 Product Overview Front Panel Description SFP Modules The Catalyst 3750 switch uses Gigabit Ethernet SFP modules to establish connections to other devices. These transceiver modules are field-replaceable, providing the uplink interfaces when inserted in an SFP module slot. You can use the SFP modules for Gigabit uplink connections to other switches. You use fiber-optic cables with LC or MT-RJ connectors to connect to a fiber-optic SFP module.
Chapter 1 Product Overview Front Panel Description Figure 1-13 Catalyst 3750-24TS, 3750G-24T, 3750G-12S, 3750G-16TD, 3750-48TS, 3750G-48TS, 3750G-24TS, and 3750G-24TS-1U Switch LEDs 9 SYST RPS MASTR STAT DUPLX SPEED STACK 1 1X MODE 2 3 4 5 6 7 8 9 10 11 12 11X 2X 2 3 4 5 6 7 8 12X 86545 1 1 Mode button 6 Master LED 2 Stack LED 7 RPS LED 3 Speed LED 8 System LED 4 Duplex LED 9 Port LED 5 Status LED Catalyst 3750 Switch Hardware Installation Guide 1-16 OL-6336
Chapter 1 Product Overview Front Panel Description Figure 1-14 Catalyst 3750-24PS, 3750G-24PS, 3750-48PS, and 3750G-48PS Switch LEDs SYST RPS MASTR STAT DUPLX SPEED STACK PoE 104062 MODE 1 2 3 4 6 5 7 8 9 1 Mode button 6 Status LED 2 PoE LED 7 Master LED 3 Stack LED 8 RPS LED 4 Speed LED 9 System LED 5 Duplex LED Catalyst 3750 Switch Hardware Installation Guide OL-6336-01 1-17
Chapter 1 Product Overview Front Panel Description System LED The System LED shows whether the system is receiving power and is functioning properly. Table 1-1 lists the LED colors and their meanings. Table 1-1 System LED Color System Status Off System is not powered on. Green System is operating normally. Amber System is receiving power but is not functioning properly.
Chapter 1 Product Overview Front Panel Description Master LED The Master LED shows the stack master status. Table 1-2 lists the LED colors and their meanings. Table 1-3 Master LED Port Mode Description Off Switch is not the stack master. Green Switch is the stack master or a standalone switch. Amber An error occurred when the switch was selecting the stack master switch or a stack error. Port LEDs and Modes Each RJ-45 port, SFP module slot, and XENPAK module slot has a port LED.
Chapter 1 Product Overview Front Panel Description Table 1-4 Port Mode LEDs Mode LED Port Mode Description SPEED Port speed The port operating speed: 10, 100, or 1000 Mbps. STACK Stack member status The stack member status. StackWise port status The StackWise port status. See the “Stack LED” section on page 1-23 for more information. 10/100 and 10/100/1000 PoE port power The PoE status. PoE1 1. The PoE LED is on the Catalyst 3750-24PS, 3750G-24PS, 3750-48PS, and 3750G-48PS switches.
Chapter 1 Product Overview Front Panel Description Table 1-6 Meaning of LED Colors in Different Modes on the Switch Port Mode Port LED Color Meaning PoE1 Off PoE is off. If the powered device is receiving power from an AC power source, the port LED is off even if the powered device is connected to the switch port. Green PoE is on. The port LED is green only when the switch port is providing power.
Chapter 1 Product Overview Front Panel Description Table 1-6 Meaning of LED Colors in Different Modes on the Switch (continued) Port Mode Port LED Color Meaning STAT (port status) Off No link, or port was administratively shut down. Green Link present. Flashing green Activity. Port is transmitting or receiving data. Alternating green-amber Link fault.
Chapter 1 Product Overview Front Panel Description Table 1-6 Meaning of LED Colors in Different Modes on the Switch (continued) Port Mode Port LED Color STACK Off (stack member) Flashing green Green Meaning No stack member corresponding to that member number. Selected switch’s member number. Member number of other stack member switches. 1. The PoE LED is only on the Catalyst 3750-24PS and 3750-48PS switches. Stack LED The stack LED shows the sequence of member switches in a stack.
Chapter 1 Product Overview Front Panel Description If the port LEDs are green on all the switches in the stack, the stack is operating at full bandwidth (32 Gbps). If any of the port LEDs are not green, the stack is not operating at full bandwidth.
Chapter 1 Product Overview Rear Panel Description Rear Panel Description The switch rear panels have an AC power connector, an RPS connector, an RJ-45 console port, and two StackWise ports. (See Figure 1-16 through Figure 1-19.) STACK 1 STACK 2 Catalyst 3750-24TS, 3750G-24T, 3750G-12S, 3750G-16TD, and 3750-48TS Rear Panel 86548 Figure 1-16 CONSOLE RATING 100-200 V~ 1.6A-0>9 A, 50-6 0 1 2 3 HZ DC INP UTS FOR REMOTE POWER SUPPLY SPECIFI ED IN MANUAL +12v @8.
Chapter 1 Product Overview Rear Panel Description STACK 1 Catalyst 3750G-24TS Rear Panel DC INP UTS FOR REMOTE POWER SUPPLY SPECIFI ED IN MANUAL +12v @17a STACK 2 86547 Figure 1-17 CONSOLE 2 1 3 4 5 1 StackWise ports 4 AC power connector 2 RJ-45 console port 5 RPS connector 3 Fan exhaust STACK 1 Catalyst 3750-24PS and 3750-48PS Rear Panel STACK 2 104763 Figure 1-18 CONSOLE DC INP UTS FOR REMOTE POWER SUPPLY SPECIFI ED IN MANUAL +12v @8.5A RATING 100-240 V~ 1.
Chapter 1 Product Overview Rear Panel Description Figure 1-19 STACK 1 STACK 2 Catalyst 3750G-24PS, 3750G-24TS-1U, 3750G-48PS, and 3750G-48TS Rear Panel CONSO LE 1 119772 DC INPU TS FOR REMOTE POWER SUPPLY SPECIFI ED IN MANUAL 2 3 4 5 1 StackWise ports 4 RPS connector 2 RJ-45 console port 5 AC power connector 3 Fan exhaust StackWise Ports The Catalyst 3750 switch ships with a 0.5-meter StackWise cable (72-2632-XX CABASY) that you can use to connect the StackWise ports.
Chapter 1 Product Overview Rear Panel Description Power Connectors The switch is powered through the internal power supply. You can also connect the Cisco RPS 675 to provide backup power if the switch internal power supply should fail. Note The Catalyst 3750 switch and the Cisco RPS 675 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.
Chapter 1 Product Overview Management Options Console Port You can connect the switch to a PC by means of the console port and the supplied RJ-45-to-DB-9 female cable. If you want to connect the switch console port to a terminal, you need to provide an RJ-45-to-DB-25 female DTE adapter. You can order a kit (part number ACS-DSBUASYN=) containing that adapter from Cisco. For console port and adapter pinout information, see the “Connector and Cable Specifications” section on page B-1.
Chapter 1 Product Overview Management Options connecting your management station directly to the switch console port or by using Telnet from a remote management station. See the Catalyst 3750 Switch Command Reference on Cisco.com for more information. • CiscoView application The CiscoView device-management application displays the switch image that you can use to set configuration parameters and to view switch status and performance information.
C H A P T E R 2 Switch Installation This chapter describes how to start your switch and how to interpret the power-on self-test (POST) that ensures proper operation. It describes the planning and cabling considerations to keep in mind while planning your stack. It describes how to install the switch and make connections to the switch.
Chapter 2 Switch Installation Preparing for Installation Preparing for Installation This section covers these topics: • Warnings, page 2-2 • Installation Guidelines, page 2-6 • Verifying Package Contents, page 2-8 • Verifying Switch Operation, page 2-9 Warnings These warnings are translated into several languages in the Regulatory Compliance and Safety Information for the Catalyst 3750 Switch document that shipped with the switch.
Chapter 2 Switch Installation Preparing for Installation Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030 Warning Read the installation instructions before connecting the system to the power source. Statement 1004 Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches).
Chapter 2 Switch Installation Preparing for Installation Warning This equipment is intended to be grounded. Ensure that the host is connected to earth ground during normal use. Statement 39 Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement 1001 Warning Ultimate disposal of this product should be handled according to all national laws and regulations.
Chapter 2 Switch Installation Preparing for Installation Warning For connections outside the building where the equipment is installed, the following ports must be connected through an approved network termination unit with integral circuit protection: 10/100/1000 Ethernet. Statement 1044 Warning To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to ensure that the system remains stable.
Chapter 2 Switch Installation Preparing for Installation Installation Guidelines When deciding where to place the switch, be sure to observe these requirements: Table 2-1 • For copper Ethernet ports, including 10/100 ports, 10/100/1000 ports, and 1000BASE-T SFP module ports, cable lengths from the switch to connected devices can be up to 328 feet (100 meters). • Table 2-1 lists the cable specifications for 1000BASE-SX, 1000BASE-LX, 1000BASE-ZX, and CWDM fiber-optic SFP module connections.
Chapter 2 Switch Installation Preparing for Installation Table 2-1 Fiber-Optic SFP Module Port Cabling Specifications (continued) Wavelength (nanometers) SFP Module CWDM 1470, 1490, 1510, 1530, 1550, 1570, 1590, 1610 Fiber Type Core Size (micron) Modal Bandwidth (MHz/km) Cable Distance SMF 9/125 — 62 miles (100 km) 1. A mode-conditioning patch cord is required.
Chapter 2 Switch Installation Preparing for Installation • Cabling is away from sources of electrical noise, such as radios, power lines, and fluorescent lighting fixtures. Make sure the cabling is safely away from other devices that might damage the cables. • Airflow around the switch and through the vents is unrestricted. • Temperature around the unit does not exceed 113°F (45°C).
Chapter 2 Switch Installation Preparing for Installation – One cable guide and one black Phillips machine screw for attaching the cable guide to one of the mounting brackets – One RPS connector cover (for wall mounting) – Two Phillips pan-head screws (for attaching the RPS cover) – Four Phillips truss-head screws (for wall-mounting brackets) – StackWise cable: 0.5-meter, 1-meter, or 3-meter cable. Note If you do not specify the length of the StackWise cable, the 0.5-meter cable is supplied.
Chapter 2 Switch Installation Preparing for Installation Warning Attach only the Cisco RPS 675 (model PWR675-AC-RPS-N1=) to the RPS receptacle As the switch powers on, it begins the power-on self-test (POST), a series of tests that runs automatically to ensure that the switch functions properly. POST lasts approximately 1 minute. When the switch begins POST, the System, the RPS, the Master, the Status, the Duplex, the Speed, and the Stack LEDs turn green.
Chapter 2 Switch Installation Planning the Stack Planning the Stack If you plan to stack your switches, read these sections: • Planning Considerations, page 2-11 • Powering Considerations, page 2-12 • Cabling Considerations, page 2-12 • Recommended Cabling Configurations, page 2-14 Planning Considerations Before connecting the Catalyst 3750 switches in a stack, observe these planning considerations: • Size of the switch. For switch dimensions, see Appendix A, “Technical Specifications.
Chapter 2 Switch Installation Planning the Stack Powering Considerations Consider the following guidelines before you power the switches in a stack: Note • The sequence in which the switches are initially powered on might affect the switch that becomes the stack master. • If you want a particular switch to become the stack master, power on that switch first. This switch becomes the stack master and remains the stack master until a master re-election is required.
Chapter 2 Switch Installation Planning the Stack Figure 2-2 shows an example of a stack of Catalyst 3750 switches with incomplete StackWise cabling connections. This stack provides only half bandwidth and does not have redundant connections. Figure 2-2 Example of a Stack with Half Bandwidth Connections 86823 A B Figure 2-3 and Figure 2-4 show examples of stacks of Catalyst 3750 switches with failover conditions.
Chapter 2 Switch Installation Planning the Stack Recommended Cabling Configurations This section describes the recommended cabling configurations for stacking the switches. Stacking Switches in Vertical Racks or on a Table Figure 2-5 is an example of a recommended configuration using the supplied 0.5-meter StackWise cable. In this example, the switches are stacked in a vertical rack or on a table. This configuration provides redundant connections.
Chapter 2 Switch Installation Planning the Stack Stacking the Catalyst 3750 Switches in a Vertical Rack or on a Table Using 0.5-meter and 3-meter StackWise Cables 86585 Figure 2-6 Side-by-Side Mounting in a Rack or on a Wall Figure 2-7 and Figure 2-8 are examples of recommended configurations where the switches are rack- or wall-mounted side-by-side. Use the 1-meter and 3-meter StackWise cables to connect the switches. These configuration provide redundant connections.
Chapter 2 Switch Installation Installing the Switch Installing the Switch This section describes these installation procedures: • Rack-Mounting, page 2-16 • Wall-Mounting, page 2-31 • Table- or Shelf-Mounting, page 2-34 Rack-Mounting Warning To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to ensure that the system remains stable.
Chapter 2 Switch Installation Installing the Switch 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 3750G-24TS switches, order part number RCKMNT-3550-1.5RU=. For the other Catalyst 3750 switches, order part number RCKMNT-1RU=.
Chapter 2 Switch Installation Installing the Switch 40 41 42 43 44 45 46 Removing Screws from the Catalyst ,3750G-24TS-1U, 3750G-24PS, 3750G-48PS, and 3750G-48TS Switches 47 126143 Figure 2-10 Catalys t 3750G 48 SERIES 47X 49 51 50 48X Removing Screws from the Catalyst 3750G-12S Switch 97170 Figure 2-11 52 16 Catalyst 8 9 3750 SER IES 10 11 12 Figure 2-12 shows how to remove the chassis screws in a 1.5-RU switch.
Chapter 2 Switch Installation Installing the Switch Removing Screws from the 3750G-24TS Switch Catalyst 86820 Figure 2-12 3750 SER IES 23 24 23X 25 26 27 28 24X Attaching Brackets to the Catalyst 3750G-24TS Switch The bracket orientation and the brackets that you use depend on whether you are attaching the brackets for a 19-inch or a 24-inch rack. For 19-inch racks, use part number 700-11523-XX; for 24-inch racks, use part number 700-12398-XX.
Chapter 2 Switch Installation Installing the Switch Figure 2-13 Attaching Brackets for 19-inch Racks, Front Panel Forward 1 SYST RPS MASTR STAT DUPLX SPEED STACK 1 1X MODE 2 3 4 5 6 7 8 9 10 11 12 11X 13 14 15 16 13X 2X 17 14X 1 86839 12X Phillips flat-head screws Catalyst 3750 Switch Hardware Installation Guide 2-20 OL-6336-01
Chapter 2 Switch Installation Installing the Switch Figure 2-14 Attaching Brackets for 24-Inch Racks, Front Panel Forward 1 SYST RPS MASTR STAT DUPLX SPEED STACK 1 1X MODE 2 3 4 5 6 7 8 9 10 11 12 11X 12X 1 86557 2X Phillips flat-head screws Catalyst 3750 Switch Hardware Installation Guide OL-6336-01 2-21
Chapter 2 Switch Installation Installing the Switch Figure 2-15 Attaching Brackets for 19-Inch Racks, Rear Panel Forward 1 1 86555 DC IN PUTS FOR RE POWE MO SPECIFI R SUPPLY TE ED IN MANU +12v @17a AL Phillips flat-head screws Figure 2-16 Attaching Brackets for 24-Inch Racks, Rear Panel Forward DC IN PUTS FOR RE POWE MO SPECIFI R SUPPLY TE ED IN MANU +12v @17a AL 86556 1 1 Phillips flat-head screws Catalyst 3750 Switch Hardware Installation Guide 2-22 OL-6336-01
Chapter 2 Switch Installation Installing the Switch Figure 2-17 13 14 15 16 13X Attaching Brackets for 19-Inch Telco Racks Catalyst 17 18 19 20 21 22 23 3750 SER IES 24 23X 25 14X 26 27 28 1 1 86558 24X Phillips flat-head screws Figure 2-18 13 13X 14 15 16 Attaching Brackets for 24-Inch Telco Racks Catalyst 17 18 19 20 21 22 23 3750 SER IES 24 23X 25 14X 26 27 28 1 1 86559 24X Phillips flat-head screws Catalyst 3750 Switch Hardware Installation Guide OL-6
Chapter 2 Switch Installation Installing the Switch Attaching Brackets to the Catalyst 3750-24TS, 3750G-24TS-1U, 3750G-24T, 3750G-12S, 3750-24PS, 3750G-24PS, 3750-48PS, 3750G-48PS, 3750G-16TD, 3750-48TS, and 3750G-48TS Switches The bracket orientation and the brackets you use depend on whether you are attaching the brackets for a 19-inch or a 24-inch rack. For 19-inch racks, use bracket part number 700-8209-XX; for 24-inch racks, use bracket part number 700-13248-XX.
Chapter 2 Switch Installation Installing the Switch Figure 2-20 Attaching Brackets for 24-Inch Racks, Front Panel Forward 1 SYST RPS MASTR STAT DUPLX SPEED STACK 1 2 1X 3 4 5 2X Phillips flat-head screws Figure 2-21 RATIN G 100-2 1.6A-0> 00V ~ 9A, 50 -60 HZ Attaching Brackets for 19-Inch Racks, Rear Panel Forward DC IN PUTS FOR RE POWE MO SPECIFI R SUPPLY TE ED IN MANU +12v @8.
Chapter 2 Switch Installation Installing the Switch Figure 2-22 Attaching Brackets for 24-Inch Racks, Rear Panel Forward 1 1 Phillips flat-head screws Figure 2-23 9 86563 DC IN PUTS FOR RE POWE MO SPECIFI R SUPPLY TE ED IN MANU +12v @8.5a AL RATIN G 100-2 1.
Chapter 2 Switch Installation Installing the Switch Attaching Brackets for 19-Inch Racks 97171 Figure 2-24 16 Catalyst 8 9 3750 SER IES 10 11 12 1 1 Phillips truss-head screws Figure 2-25 9 10 11 Attaching Brackets for 24-Inch Telco Racks 12 11X 13 13X 14 15 16 17 18 19 20 21 22 23 Catalyst 24 3750 SER IES 23X 12X 14X 1 2 1 86840 24X 1 Phillips flat-head screws Mounting the Switch in a Rack After the brackets are attached to the switch, use the four supplied number-12
Chapter 2 Switch Installation Installing the Switch Figure 2-26 SYST RPS MASTR STAT DUPLX SPEED STACK Mounting the Catalyst 3750G-24TS Switch in a Rack 1 2 1X 3 4 5 6 7 8 9 10 11 12 MODE 11X 13 14 15 16 13X 2X 17 Catalyst 18 19 3750 SERIE S 20 21 22 23 24 23X 12X 25 26 14X 27 28 24X 1 86566 1 Phillips machine screws Figure 2-27 Mounting the Other Catalyst 3750 Switches in a Rack SYST RPS MASTR STAT DUPLX SPEE SYST D STAC RPS K 1 2 1 2 3 4 3 4 1X 5
Chapter 2 Switch Installation Installing the Switch After the switch is mounted in the rack, you might need to perform these tasks to complete the installation, run the setup program, and access the switch: • (Optional) Connect the switches in the stacks. See the “Connecting StackWise Cable to StackWise Ports” section on page 2-35. • Power on the switch. See the “Verifying Switch Operation” section on page 2-9. • Connect to a 10/100 or 10/100/1000 port and run Express Setup.
Chapter 2 Switch Installation Installing the Switch Figure 2-28 Attaching the Cable Guide on the 24-Port Catalyst 3750 Switches SYST RPS MASTR STAT DUPLX SPEED STACK 1 2 3 4 5 1X 6 7 MODE 8 9 10 11 12 11X 13 14 15 16 13X 17 18 19 20 2X 21 22 23 Catalyst 24 3750 SERIE S 23X 12X 1 14X 25 24X 86568 26 1 Cable guide screws The 48-port Catalyst 3750 switches ship with the cable guide shown in Figure 2-29. This cable guide secures up to 48 cables.
Chapter 2 Switch Installation Installing the Switch Wall-Mounting To install the switch on a wall, follow the instructions in these procedures: • Attaching the Brackets to the Switch for Wall-Mounting, page 2-31 • Attaching the RPS Connector Cover, page 2-32 • Mounting the Switch on a Wall, page 2-32 The illustrations in this section show the Catalyst 3750G-24TS switch as an example. All the Catalyst 3750 switches are wall-mounted following the same procedures.
Chapter 2 Switch Installation Installing the Switch Attaching the RPS Connector Cover If you are not using an RPS with your switch, use the two Phillips pan-head screws to attach the RPS connector cover to the back of the switch, as shown in Figure 2-31. If an RPS is not connected to the switch, install an RPS connector cover on the back of the switch.
Chapter 2 Switch Installation Installing the Switch Mounting the Switch on a Wall t 3750 IE R E S S Figure 2-32 X 24 Catalys 14 15 17 18 19 20 21 22 23 24 MODE 1 2 3 4 5 6 7 8 9 10 11 12 T S Y SSR PT RS A M AT X TL SPD U D EE K P S AC T S 1X 2X X 11 X 12 X 13 X 14 X 23 13 16 1 86570 1 1 User-supplied screws After the switch is mounted on the wall, you might need to perform these tasks to complete the installation, run the setup program, and access the switch: •
Chapter 2 Switch Installation Installing the Switch • Connect to a 10/100 or 10/100/1000 port and run Express Setup. See the Catalyst 3750 Switch Getting Started Guide for instructions. • Connect to the front-panel ports. See the “Connecting to the 10/100 and 10/100/1000 Ports” section on page 2-48 and the “Connecting to an SFP Module” section on page 2-52 to complete the installation.
Chapter 2 Switch Installation Connecting StackWise Cable to StackWise Ports To use the CLI, enter commands at the Switch> prompt through the console port by using a terminal program or through the network by using Telnet. For configuration information, see the switch software configuration guide or the switch command reference.
Chapter 2 Switch Installation Connecting StackWise Cable to StackWise Ports Figure 2-33 Inserting the StackWise Cable in a StackWise Port 1 STACK 2 CONSO LE 86549 STACK When you need to remove the StackWise cable from the connector, make sure to fully unscrew the screws before removing the connector. Also make sure that you remove the correct screws from the StackWise port. See Figure 2-34 for correct removal procedures and Figure 2-35 for incorrect removal procedures.
Chapter 2 Switch Installation Connecting StackWise Cable to StackWise Ports Figure 2-34 Correct Removal of the StackWise Cable from a StackWise Port 1 STACK CONSO 2 LE 86826 STACK Catalyst 3750 Switch Hardware Installation Guide OL-6336-01 2-37
Chapter 2 Switch Installation Installing and Removing SFP Modules Figure 2-35 Incorrect Removal of a StackWise Cable from a StackWise Port 1 STACK CONSO 2 LE 86827 STACK Installing and Removing SFP Modules These sections describe how to install and remove SFP modules. SFP modules are inserted into SFP module slots on the front of the Catalyst 3750 switches. These field-replaceable modules provide uplink interfaces. You can use any combination of SFP modules.
Chapter 2 Switch Installation Installing and Removing SFP Modules For detailed instructions on installing, removing, and cabling the SFP module, see your SFP module documentation. Installing SFP Modules into SFP Module Slots Figure 2-36 shows an SFP module that has a bale-clasp latch. Caution We strongly recommend that you do not install or remove fiber-optic SFP modules with cables attached because of the potential damage to the cables, the cable connector, or the optical interfaces in the SFP module.
Chapter 2 Switch Installation Installing and Removing SFP Modules Note On some SFP modules, the send and receive (TX and RX) markings might be replaced by arrows that show the direction of the connection, either send or receive (TX or RX). Step 3 Align the SFP module in front of the slot opening. Step 4 Insert the SFP module into the slot until you feel the connector on the module snap into place in the rear of the slot.
Chapter 2 Switch Installation Installing and Removing SFP Modules Step 6 Insert the cable connector into the SFP module: • For fiber-optic SFP modules, insert the LC or MT-RJ cable connector into the SFP module. • For copper SFP modules, insert the RJ-45 cable connector into the SFP module. Note When connecting to 1000BASE-T SFP modules, be sure to use a twisted four-pair, Category 5 cable.
Chapter 2 Switch Installation Installing and Removing XENPAK Modules Figure 2-38 13 14 13X 15 16 Removing a Bale-Clasp Latch SFP Module by Using a Flat-Blade Screwdriver 17 18 19 20 21 22 23 Catalyst 24 3750 SERIE S 86554 23X 14X 1 24X 2 1 1 Bale clasp Step 4 Grasp the SFP module between your thumb and index finger, and carefully remove it from the module slot.
Chapter 2 Switch Installation Installing and Removing XENPAK Modules See the Catalyst 3750 release notes for the list of XENPAK modules that the Catalyst 3750G-16TD switch supports. Use only Cisco XENPAK modules on the Catalyst 3750G-16TD switch. Each XENPAK 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 XENPAK module meets the requirements for the switch.
Chapter 2 Switch Installation Installing and Removing XENPAK Modules Figure 2-39 XENPAK Module 3 4 TX 2 99376 RX 1 1 Captive installation screw 3 Transmit optical bore 2 Optical bore dust plug 4 Receive optical bore To insert a XENPAK module, follow these steps: Step 1 Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis. Step 2 Remove the two Phillips-head retaining screws from the XENPAK module slot cover, and store them for later use.
Chapter 2 Switch Installation Installing and Removing XENPAK Modules Figure 2-40 Removing the XENPAK Module Slot Cover Catalyst 37 50 series 1 104764 1 2 1 Phillips-head screw 2 Module slot cover Step 4 Remove the XENPAK module from the protective packaging. Step 5 Align the XENPAK module with the guide rails inside the module slot, and slide the module into the opening until the back of the XENPAK faceplate is flush with the switch faceplate. (See Figure 2-41.
Chapter 2 Switch Installation Installing and Removing XENPAK Modules Figure 2-41 Installing a XENPAK Module in the Catalyst 3750G-16TD Switch Catalyst 37 50 series TX 104573 1 RX 1 2 1 Optical bore dust plug Step 6 2 Captive installation screw Secure the XENPAK module in place by tightening the two captive installation screws. Do not overtighten the captive screws.
Chapter 2 Switch Installation Installing and Removing XENPAK Modules Step 5 Figure 2-42 Grasp the edges of the XENPAK module, and carefully slide it out of the slot, as shown in Figure 2-42. Removing a XENPAK Module Catalyst 37 50 series TX 104574 1 RX 1 2 1 Optical bore dust plug Step 6 2 Captive installation screw Use two Phillips-head screws to attach the XENPAK module slot cover to the switch front panel, as shown in Figure 2-43.
Chapter 2 Switch Installation Connecting to the 10/100 and 10/100/1000 Ports Figure 2-43 Replacing the XENPAK Module Slot Cover Catalyst 37 50 series 1 104765 1 2 1 Phillips-head screw 2 Module slot cover Connecting to the 10/100 and 10/100/1000 Ports The switch 10/100 and 10/100/1000 ports configure themselves to operate at the speed of attached devices. If the attached ports do not support autonegotiation, you can explicitly set the speed and duplex parameters.
Chapter 2 Switch Installation Connecting to the 10/100 and 10/100/1000 Ports Warning Voltages that present a shock hazard may exist on Power over Ethernet (PoE) circuits if interconnections are made using uninsulated exposed metal contacts, conductors, or terminals. Avoid using such interconnection methods, unless the exposed metal parts are located within a restricted access location and users and service people who are authorized within the restricted access location are made aware of the hazard.
Chapter 2 Switch Installation Connecting to the 10/100 and 10/100/1000 Ports Note You can use the mdix auto interface configuration command in the CLI to enable the automatic medium-dependent interface crossover (Auto-MDIX) feature. When the Auto-MDIX feature is enabled, the switch detects the required cable type for copper Ethernet connections and configures the interfaces accordingly.
Chapter 2 Switch Installation Connecting to the 10/100 and 10/100/1000 Ports Step 2 Note The Catalyst 3750 switch can connect to a Cisco IP Phone through a straight-through, twisted four-pair Category 5 cable. The rear panel of the Cisco IP Phone might have more than one RJ-45 connector. Use the LAN-to-phone connector to connect the IP phone to the switch. See the Cisco IP Phone documentation for more information about connecting devices to it.
Chapter 2 Switch Installation Connecting to an SFP Module Figure 2-44 Connecting to an Ethernet Port SYST RPS MASTR STAT DUPLX SPEED STACK 1 1X 2 3 4 5 6 7 8 9 10 11 12 MODE 11X 86818 2X 12X Connecting to an SFP Module This section describes how to connect to SFP modules. For instructions on how to connect to fiber-optic SFP modules, see the “Connecting to 1000BASE-T SFP Modules” section.
Chapter 2 Switch Installation Connecting to an SFP Module Connecting to a Fiber-Optic SFP Module Follow these steps to connect a fiber-optic cable to an SFP module: Warning Caution Class 1 laser product. Statement 1008 Do not remove the rubber plugs from the SFP module port or the rubber caps from the fiber-optic cable until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables from contamination and ambient light.
Chapter 2 Switch Installation Connecting to an SFP Module Figure 2-45 Connecting to an SFP Module Port 0 SERIES 13 13X 86550 23X 14 15 16 17 18 19 1 2024X 21 22 2 23 Catalyst 24 3750 SERIE S 86550 23X 14X 1 1 24X 2 1 1 LC connector Step 5 Caution If necessary, reconfigure and restart the switch or target device. For detailed instructions on removing the SFP modules, see your SFP documentation.
Chapter 2 Switch Installation Connecting to an SFP Module Connecting to 1000BASE-T SFP Modules Follow these steps to connect a Category 5 cable to a 1000BASE-T SFP module: To prevent ESD damage, follow your normal board and component handling procedures. Caution When connecting to servers, workstations, and routers, insert a four twisted-pair, straight-through cable in the RJ-45 connector. When connecting to switches or repeaters, insert a four twisted-pair, crossover cable.
Chapter 2 Switch Installation Connecting to a XENPAK Module The LED turns amber while the STP discovers the network topology and searches for loops. This process takes about 30 seconds, and then the port LED turns green. If the LED is off, the target device might not be turned on, there might be a cable problem, or there might be problem with the adapter installed in the target device. See Chapter 3, “Troubleshooting,” for solutions to cabling problems.
Chapter 2 Switch Installation Connecting to a XENPAK Module Step 1 Remove the rubber plugs from the XENPAK module ports and fiber-optic cable, and store them for future use. Step 2 Align the fiber-optic cable SC connector with the XENPAK module connector, so that transmit (TX) on the cable meets receive (RX) on the XENPAK module connector, and RX on the cable meets TX on the XENPAK module. Step 3 Insert the fiber-optic cable connector into the XENPAK module ports (see Figure 2-47).
Chapter 2 Switch Installation Connecting to a XENPAK Module Figure 2-47 Connecting to a XENPAK Module Port Catalyst 37 50 series 1 RX 1 1 104575 TX SC connector Step 6 If necessary, reconfigure and restart the switch or target device.
Chapter 2 Switch Installation Where to Go Next Where to Go Next If the default configuration is satisfactory, the switch does not need further configuration. You can use any of these management options to change the default configuration: • Start the device manager, which is in the switch memory, to manage individual and standalone switches. This is an easy-to-use web interface that offers quick configuration and monitoring.
Chapter 2 Switch Installation Where to Go Next Catalyst 3750 Switch Hardware Installation Guide 2-60 OL-6336-01
C H A P T E R 3 Troubleshooting The LEDs on the front panel provide troubleshooting information about the switch. They show failures in the power-on self-test (POST), port-connectivity problems, and overall switch performance. For a full description of the switch LEDs, see the “LEDs” section on page 1-15. You can also get statistics from the browser interface, from the command-line interface (CLI), or from a Simple Network Management Protocol (SNMP) workstation.
Chapter 3 Troubleshooting Understanding POST Results When POST completes successfully, the System LED remains green. The RPS LED remains green for some time and then returns to its operating status. The other LEDs turn off and return to their operating status. Note For information on operating status for the LEDs, go to the “LEDs” section on page 1-15. Note POST failures are usually fatal. Call Cisco Systems if your switch does not pass POST.
Chapter 3 Troubleshooting Diagnosing Problems Diagnosing Problems The LEDs on the front panel provide troubleshooting information about the switch. They show POST failures, port-connectivity problems, and overall switch performance. For a full description of the switch LEDs, see the “LEDs” section on page 1-15. You can also get statistics from the browser interface, from the CLI, or from an SNMP workstation. See the software configuration guide, the switch command reference guide on Cisco.
Chapter 3 Troubleshooting Diagnosing Problems Table 3-1 Common Problems and Solutions Symptom Possible Cause Resolution Poor performance or excessive errors Duplex autonegotiation mismatch. See the switch software configuration guide for information on identifying autonegotiation mismatches. Verify that the autonegotiation settings are the same at both ends. Cabling distance exceeded • Port statistics show excessive frame check sequence (FCS), late-collision, or alignment errors.
Chapter 3 Troubleshooting Diagnosing Problems Table 3-1 Common Problems and Solutions (continued) Symptom Possible Cause Resolution No connectivity Incorrect or bad cable These are results of no link at both ends: • A crossover cable was used when a straight-through was required, or the reverse. • For the correct pinouts and the proper application of crossover instead of straight-through cables, see the “Two Twisted-Pair Cable Pinouts” section on page B-5.
Chapter 3 Troubleshooting Diagnosing Problems Table 3-1 Common Problems and Solutions (continued) Symptom Possible Cause Resolution Unreadable characters on the management console Incorrect baud rate. Reset the emulation software to 9600 baud. Amber system LED Fatal POST error detected. Contact Cisco Systems. Switch port in error-disabled state after SFP module or XENPAK module inserted Bad or non-Cisco-approved SFP module or XENPAK module.
Chapter 3 Troubleshooting Diagnosing Problems Table 3-1 Common Problems and Solutions (continued) Symptom Possible Cause PoE mode LED blinks amber At least one PoE port has a fault, or Use the Mode button to show the power has been denied to at least one PoE status for all ports. The of the PoE ports. affected port LEDs blink amber or alternate green and amber. Note When the PoE mode is selected, a green PoE LED means that the port status LEDs show the PoE status.
Chapter 3 Troubleshooting Replacing a Failed Stack Member Table 3-1 Common Problems and Solutions (continued) Symptom Possible Cause Resolution SFP module or XENPAK module not recognized The SFP module or XENPAK module might be installed upside down. Verify that the SFP module or XENPAK module is not installed upside down. The SFP module or XENPAK module does not snap into the slot. Remove the SFP module or XENPAK module.
Chapter 3 Troubleshooting Replacing a Failed Stack Member Step 3 Make sure the replacement switch is powered off, and then connect the replacement switch to the stack. Note If you had manually set the member numbers for any members in the stack, you need to manually assign the replacement switch the same member number as the failed switch. To assign the member number manually, see the switch software configuration guide.
Chapter 3 Troubleshooting Replacing a Failed Stack Member Catalyst 3750 Switch Hardware Installation Guide 3-10 OL-6336-01
A P P E N D I X A Technical Specifications This appendix lists the switch technical specifications in Table A-1 through Table A-12.
Appendix A Table A-1 Technical Specifications Specifications for the Catalyst 3750G-12S Switch 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 Up to 10,000 ft (3049 m) Storage altitude Up to 15,000 ft (4573 m) Power Requirements AC input voltage 100 to 240 VAC (autoranging) 1.2 A to 0.
Appendix A Technical Specifications Table A-2 Specifications for the Catalyst 3750-24TS Switch 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 Up to 10,000 ft (3049 m) Storage altitude Up to 15,000 ft (4573 m) Power Requirements AC input voltage 100 to 240 VAC (autoranging) 1.2 A to 0.
Appendix A Table A-3 Technical Specifications Specifications for the Catalyst 3750G-24T Switch 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 Up to 10,000 ft (3049 m) Storage altitude Up to 15,000 ft (4573 m) Power Requirements AC input voltage 100 to 240 VAC (autoranging) 1.6 A to 0.
Appendix A Technical Specifications Table A-4 Specifications for the Catalyst 3750-24PS Switch 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 Up to 10,000 ft (3049 m) Storage altitude Up to 15,000 ft (4573 m) Power Requirements AC input voltage 100 to 240 VAC (autoranging) 5.5 A to 2.
Appendix A Table A-5 Technical Specifications Specifications for the Catalyst 3750G-24PS Switch 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 Up to 10,000 ft (3049 m) Storage altitude Up to 15,000 ft (4573 m) Power Requirements AC input voltage 100 to 240 VAC (autoranging) 8 A to 4 A, 50 to 60 Hz DC input voltages for RPS 675 + 12 V Power consumption 520 W Po
Appendix A Technical Specifications Table A-6 Specifications for the Catalyst 3750-48PS Switch 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 Up to 10,000 ft (3049 m) Storage altitude Up to 15,000 ft (4573 m) Power Requirements AC input voltage 100 to 240 VAC (autoranging) 5.5 A to 2.
Appendix A Table A-7 Technical Specifications Specifications for the Catalyst 3750G-48PS Switch 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 Up to 10,000 ft (3049 m) Storage altitude Up to 15,000 ft (4573 m) Power Requirements AC input voltage 100 to 240 VAC (autoranging) 8 A to 4 A, 50 to 60 Hz DC input voltages for RPS 675 + 12 V Power consumption 560 W Po
Appendix A Technical Specifications Table A-8 Specifications for the Catalyst 3750G-16TD Switch 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 Up to 10,000 ft (3049 m) Storage altitude Up to 15,000 ft (4573 m) Power Requirements AC input voltage 100 to 240 VAC (autoranging) 1.6 A to 0.
Appendix A Table A-9 Technical Specifications Specifications for the Catalyst 3750G-24TS Switch 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 Up to 10,000 ft (3049 m) Storage altitude Up to 15,000 ft (4573 m) Power Requirements AC input voltage 100 to 240 VAC (autoranging) 2.3 A to 1.
Appendix A Technical Specifications Table A-10 Specifications for the Catalyst 3750G-24TS-1U Switch 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 Up to 10,000 ft (3049 m) Storage altitude Up to 15,000 ft (4573 m) Power Requirements AC input voltage 100 to 240 VAC (autoranging) 3 A to 1.
Appendix A Table A-11 Technical Specifications Specifications for the Catalyst 3750-48TS Switch 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 Up to 10,000 ft (3049 m) Storage altitude Up to 15,000 ft (4573 m) Power Requirements AC input voltage 100 to 240 VAC (autoranging) 1.2 A to 0.
Appendix A Technical Specifications Table A-12 Specifications for the Catalyst 3750G-48TS Switch 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 Up to 10,000 ft (3049 m) Storage altitude Up to 15,000 ft (4573 m) Power Requirements AC input voltage 100 to 240 VAC (autoranging) 3 A to 1.
Appendix A Technical Specifications Catalyst 3750 Switch Hardware Installation Guide A-14 OL-6336-02
A P P E N D I X B Connector and Cable Specifications This appendix describes the Catalyst 3750 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 3750 switches.
Appendix B Connector and Cable Specifications Connector Specifications 10/100 and 10/100 /1000 Ports The 10/100 and 10/100/1000 Ethernet ports on Catalyst 3750 switches use standard RJ-45 connectors and Ethernet pinouts with internal crossovers. Figure B-2 and Figure B-1 show the pinouts.
Appendix B Connector and Cable Specifications Connector Specifications SFP Module Ports The Catalyst 3750 switch uses SFP modules for fiber-optic and copper uplink ports. See the Catalyst 3750 release notes for a list of supported SFP modules. Fiber-Optic SFP Module LC Connector 58476 Figure B-3 Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or view directly with optical instruments.
Appendix B Connector and Cable Specifications Connector Specifications XENPAK Module Ports The Catalyst 3750G-16TD switch uses XENPAK modules for 10-Gigabit fiber-optic connections to networks. See the Catalyst 3750 release notes for a list of supported XENPAK modules. Fiber-optic XENPAK modules use SC connectors, as shown in Figure B-5. Fiber-Optic XENPAK Module SC Connector H8707 Figure B-5 Tx Warning Rx Invisible laser radiation may be emitted from disconnected fibers or connectors.
Appendix B Connector and Cable Specifications Cable and Adapter Specifications Cable and Adapter Specifications These sections describe the cables and adapters used with Catalyst 3750 switches. Two Twisted-Pair Cable Pinouts Figure B-6 and Figure B-7 show the schematics of two twisted-pair cables for 10/100 ports.
Appendix B Connector and Cable Specifications Cable and Adapter Specifications Four Twisted-Pair Cable Pinouts for 10/100 Ports Figure B-8 and Figure B-9 show the schematics of four twisted-pair cables for 10/100 ports.
Appendix B Connector and Cable Specifications Cable and Adapter Specifications Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports Figure B-10 and Figure B-11 show the schematics of four twisted-pair cables for 10/100/1000 ports on Catalyst 3750 switches.
Appendix B Connector and Cable Specifications Cable and Adapter Specifications Crossover Cable and Adapter Pinouts This section describes how to identify a crossover cable and also describes the adapter pinouts. Identifying a Crossover Cable To identify a crossover cable, compare the two modular ends of the cable. Hold the cable ends side-by-side, with the tab at the back.
Appendix B Connector and Cable Specifications Cable and Adapter Specifications Note You can use the mdix auto interface configuration command in the CLI to enable the automatic medium-dependent interface crossover (Auto-MDIX) feature. When the Auto-MDIX feature is enabled, the switch detects the required cable type for copper Ethernet connections and configures the interfaces accordingly.
Appendix B Connector and Cable Specifications Cable and Adapter Specifications Table B-2 lists the pinouts for the console port, RJ-45-to-DB-25 female DTE adapter, and the console device. Note The RJ-45-to-DB-25 female DTE adapter is not supplied with the switch. You can order a kit (part number ACS-DSBUASYN=) containing this adapter from Cisco.
A P P E N D I X C Configuring the Switch with the CLI-Based Setup Program This appendix provides a CLI-based setup procedure for a standalone switch or a switch stack. Before connecting the switch to a power source, review the safety warnings in Chapter 2, “Switch Installation.” Note For detailed installation procedures on rack-mounting your switch, stacking your switches, or connecting to small form-factor pluggable (SFP) or XENPAK modules, see Chapter 2, “Switch Installation.
Appendix C Configuring the Switch with the CLI-Based Setup Program Accessing the CLI Accessing the CLI For an unconfigured switch, you can access the CLI through Express Setup or through the console port. Accessing the CLI Through Express Setup Note Express Setup is supported on switches running Cisco IOS Release 12.1(14)EA1 or later. If you are installing a new switch, see the Cisco IOS release label on the rear panel of the switch to determine the release.
Appendix C Configuring the Switch with the CLI-Based Setup Program Accessing the CLI Accessing the CLI Through the Console Port You can access the CLI on a configured or unconfigured switch by connecting the console port of the switch to the serial port on your PC or workstation and accessing the switch through a Telnet session. To access the switch through the console port, follow these steps: • “Taking Out What You Need” section on page C-4.
Appendix C 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 C-1 from the shipping container: Figure C-1 1 SYST RPS MASTR STAT DUPLX SPEED STACK The Catalyst 3750 Switch, Adapter Cable, AC Power Cord, and the StackWise Cable 1 1X MODE 2 3 4 5 6 7 8 9 10 11 12 11X 13 13X 2X 14 15 16 17 18 19 20 21 22 23 24 23X 12X Catalyst 3750 SERIES 14X 24X 2 3 90533 4 1 Catalyst 3750 switch
Appendix C Configuring the Switch with the CLI-Based Setup Program Stacking the Switches (Optional) Note You need to provide the Category 5 straight-through cables to connect the switch ports to other Ethernet devices. Note You can use the mdix auto interface configuration command in the CLI to enable the automatic medium-dependent interface crossover (Auto-MDIX) feature.
Appendix C Configuring the Switch with the CLI-Based Setup Program Stacking the Switches (Optional) Step 1 Insert one end of the StackWise cable into the StackWise port at the back of a switch. See Figure C-3. Note Always use a Cisco-approved StackWise cable to connect the switches. Step 2 Use the window in the StackWise cable to align the connector correctly. Secure the screws tightly. Step 3 Insert the other end of the cable into the connector of the other switch, and secure the screws tightly.
Appendix C Configuring the Switch with the CLI-Based Setup Program Connecting to the Console Port Connecting to the Console Port You can use the console port to perform the initial configuration. To connect the switch console port to a PC, use the supplied RJ-45-to-DB-9 adapter cable. Note If you have stacked your switches, connect to the console port of one of the switches in the stack. The initial configuration for the entire stack can be performed on any switch in the stack.
Appendix C Configuring the Switch with the CLI-Based Setup Program Connecting to the Console Port Figure C-4 Connecting a Switch to a PC 1 CONSOLE RATIN 100-20 G 0V ~ 1.6A-0 >9A, 50-60 DC INPUT S POWE FOR REMO R SUPP TE SPECIFIED LY +12v IN MANUAL @8.5a HZ CONSOLE RATIN 100-20 G 0V ~ 1.6A-0 >9A, 50-60 DC INPUT S POWE FOR REMO R SUPP TE SPECIFIED LY +12v IN MANUAL @8.5a HZ CONSOLE RATIN 100-20 G 0V ~ 1.6A-0 >9A, 50-60 DC INPUT S POWE FOR REMO R SUPP TE SPECIFIED LY +12v IN MANUAL @8.
Appendix C Configuring the Switch with the CLI-Based Setup Program Starting the Terminal Emulation Software Starting the Terminal Emulation Software Before you power on the switch, start the terminal emulation session so that you can see the output display from the power-on self-test (POST). The terminal-emulation software—frequently a PC application such as Hyperterminal or ProcommPlus—makes communication between the switch and your PC or terminal possible.
Appendix C Configuring the Switch with the CLI-Based Setup Program Connecting to a Power Source Note Note If you have stacked your switches, see the “Powering Considerations” section on page 2-12 for more information. If you are connecting the switch to a Cisco redundant power system (RPS), see the documentation that shipped with your RPS. As the switch powers on, it begins the power-on self-test (POST), a series of tests that runs automatically to ensure that the switch functions properly.
Appendix C Configuring the Switch with the CLI-Based Setup Program Entering the Initial Configuration Information Entering the Initial Configuration Information To set up the switch, you need to complete the setup program, which runs automatically after the switch is powered up. You must assign an IP address and other configuration information necessary for the switch to communicate with the local routers and the Internet.
Appendix C Configuring the Switch with the CLI-Based Setup Program Entering the Initial Configuration Information Follow these steps to complete the setup program and to create an initial configuration for the switch: Step 1 Enter Yes at the following two prompts. Would you like to enter the initial configuration dialog? [yes/no]: yes At any point you may enter a question mark '?' for help. Use ctrl-c to abort configuration dialog at any prompt. Default settings are in square brackets '[]'.
Appendix C Configuring the Switch with the CLI-Based Setup Program Entering the Initial Configuration Information Step 6 (Optional) Configure Simple Network Management Protocol (SNMP) by responding to the prompts. You can also configure SNMP later through the CLI, the device manager, or the Network Assistant application. To configure SNMP later type no.
Appendix C Configuring the Switch with the CLI-Based Setup Program Entering the Initial Configuration Information ip address 10.4.120.106 255.0.0.0 ! interface FastEthernet1/0/1 ! interface FastEthernet1/0/2 interface FastEthernet1/0/3 ! ...
I N D EX specifications A-2 to A-12 Numerics adapter pinouts, terminal 10/100/1000 ports RJ-45-to-DB-25 B-10 cable lengths 2-6 RJ-45-to-DB-9 B-9 connecting to 2-48 altitude, operating and storage A-2 to A-12 described 1-11 autonegotiation 1-11 illustrated 1-4 numbering 1-4 pinouts B-2 recommended cables 2-49 10/100 ports B brackets See mounting brackets cable lengths 2-6 connecting to 2-48 described 1-11 C illustrated 1-4 cable guide, attaching 2-29 numbering 1-4 cable lengths 2-6 pinouts
Index SFP module to console port B-4 1000BASE-T module 2-55 to SFP modules 2-52 to 2-56 fiber-optic module 2-53 to XENPAK modules 2-56 to 2-58 straight-through connecting to the console port C-7 four twisted-pair pinout, 10/100 ports B-6 connection procedures 2-48 to 2-58 four twisted-pair pinout, 1000BASE-T ports B-7 connectivity problems, solving 3-3 two twisted-pair pinout, 10/100 ports B-5 cabling connectors and cables console port B-4 to B-10 power (AC and RPS) 1-28 10/100/1000 ports 2-4
Index D H DC power HP OpenView 1-30 RPS 1-3 humidity, relative A-2 to A-12 Device Manager xxiv, 1-29 to configure switch 2-59 diagnosing problems 3-3 dimensions A-2 to A-12 I installation document conventions xvi assigning the IP Address C-11 duplex LED 1-19 connecting to a power source C-9 rack-mounting 2-16 to 2-35 site requirements 2-6 E stacking the switches electrical noise, avoiding 2-8 See also stacking Express Setup starting the terminal emulation software C-9 table or shelf-mounti
Index master 1-19 P port 1-19 to 1-23 port mode 1-19 to 1-23 packing list 2-8 POST results 3-2 performance problems, solving 3-3 Power over Ethernet 1-20 pinouts RPS 1-18 to 1-19 10/100/1000 ports B-2 speed 1-20 10/100 ports B-2 stack 1-23 adapters B-8 to B-10 STATUS 1-19 console port B-10 system 1-18 crossover cable B-8 troubleshooting with 3-3 crossover cables four twisted-pair, 1000BASE-T ports B-7 four twisted-pair 10/100 ports B-6 M two twisted-pair 10/100 ports B-5 mode button 1
Index ports R 10/100 1-11 pinouts B-2 rack-mounting 2-16 to 2-35 recommended cables 2-49 rear panel clearance 2-7 10/100/1000 1-11 description 1-25 to 1-29 pinouts B-2 recommended cables 2-49 redundant power supply See RPS numbering of 10/100 1-11 numbering of 10/100/1000 1-11 removing SFP modules 2-41 to 2-42 numbering of SFP module ports 1-8 to 1-10 removing XENPAK modules 2-46 POST RJ-45 connector, console port B-4 LEDs 3-2 RJ-45 console port 1-25 results 3-1 RPS connecting to 2-9 ru
Index installation 2-39 to 2-41 temperature, operating A-1 to A-13 shelf-mounting 2-34 terminal emulation software C-9 Simple Network Management Protocol troubleshooting 3-1 to 3-6 See SNMP SNMP network management platforms 1-30 software switch management 1-29 W specifications A-1 to A-13 wall mounting 2-31 stacking warnings cabling considerations 2-12 defined xvi connecting to a StackWise port 2-11 installation 2-2 examples 2-11 planning considerations 2-11 powering considerations 2-12 X
