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Catalyst 3750 Switch
Hardware Installation Guide
June 2006
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
Text Part Number: OL-6336-06

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Table of Contents

   Related Manuals for Cisco Catalyst 3750

   Summary of Contents for Cisco Catalyst 3750

  • Page 1: Catalyst 3750 Switch Hardware Installation Guide

    Catalyst 3750 Switch Hardware Installation Guide June 2006 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 Text Part Number: OL-6336-06...
  • 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

    Catalyst 3750-48PS Switch Front Panel Description Gigabit Ethernet Switch Front Panel Descriptions Catalyst 3750G-12S and Catalyst 3750G-12S-SD Switches Front Panel Description Catalyst 3750-24T, 3750G-24TS, and 3750G-24TS-1U Switches Front Panel Descriptions Catalyst 3750G-48TS Switch Front Panel Description Catalyst 3750G-24PS Switch Front Panel Description...
  • Page 4 Warnings Installation Guidelines Verifying Package Contents Verifying Switch Operation Powering On the Switch and Running POST Powering Off the Switch Planning the Stack Planning Considerations Powering Considerations Cabling Considerations Recommended Cabling Configurations 2-10 Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 5 Attaching Brackets to the Catalyst 3750G-24TS Switch 2-15 Attaching Brackets to the Catalyst 3750G Integrated Wireless LAN Controller Switches 2-18 Attaching Brackets to All Other Catalyst 3750 Switches 2-19 Mounting the Switch in a Rack 2-26 Attaching the Cable Guide...
  • Page 6 Stacking the Switches (Optional) Connecting to the Console Port Starting the Terminal Emulation Software Connecting to a Power Source Entering the Initial Configuration Information IP Settings Completing the Setup Program N D E X Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 7: Preface

    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.
  • Page 8 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. BEWAHREN SIE DIESE HINWEISE GUT AUF. Catalyst 3750 Switch Hardware Installation Guide viii OL-6336-06...
  • Page 9 Använd det nummer som finns i slutet av varje varning för att hitta dess översättning i de översatta säkerhetsvarningar som medföljer denna anordning. SPARA DESSA ANVISNINGAR Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 10 Preface Conventions Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 11 Brug erklæringsnummeret efter hver advarsel for at finde oversættelsen i de oversatte advarsler, der fulgte med denne enhed. GEM DISSE ANVISNINGER Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 12 Preface Conventions Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 13: Related Publications

    Release Notes for the Catalyst 3750G Integrated Wireless LAN Controller Switch (not orderable but available on Cisco.com) Note Before installing, configuring, or upgrading the switch, see the release notes on Cisco.com for the latest information. • Catalyst 3750 Switch Software Configuration Guide (not orderable but available on Cisco.com) •...
  • Page 14: Product Documentation Dvd

    The DVD enables you to access multiple versions of installation, configuration, and command guides for Cisco hardware and software products. With the DVD, you have access to the same HTML documentation that is found on the Cisco website without being connected to the Internet.
  • Page 15: Cisco Product Security Overview

    We encourage you to use Pretty Good Privacy (PGP) or a compatible product (for example, GnuPG) to encrypt any sensitive information that you send to Cisco. PSIRT can work with information that has been encrypted with PGP versions 2.x through 9.x.
  • Page 16: Obtaining Technical Assistance

    Cisco engineer. The TAC Service Request Tool is located at this URL: http://www.cisco.com/techsupport/servicerequest For S1 or S2 service requests, or if you do not have Internet access, contact the Cisco TAC by telephone. (S1 or S2 service requests are those in which your production network is down or severely degraded.) Cisco engineers are assigned immediately to S1 and S2 service requests to help keep your business operations running smoothly.
  • Page 17: Definitions Of Service Request Severity

    Cisco products that are sold through channel partners. It is updated twice a year and includes the latest Cisco offerings. To order and find out more about the Cisco Product Quick Reference Guide, go to this URL: http://www.cisco.com/go/guide...
  • Page 18 Preface Obtaining Additional Publications and Information iQ Magazine is the quarterly publication from Cisco Systems designed to help growing companies • learn how they can use technology to increase revenue, streamline their business, and expand services. The publication identifies the challenges facing these companies and the technologies to help solve them, using real-world case studies and business strategies to help readers make sound technology investment decisions.
  • Page 19: Chapter 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.
  • Page 20 10 or 100 Mbps. You cannot configure half-duplex mode on Gigabit Ethernet interfaces if the interface speed is 1000 Mbps. • The Catalyst 3750 switches support stacking. You can stack up to nine switches in a stack by cabling the StackWise ports. StackWise ports are not user-configurable. •...
  • Page 21: Front Panel Description

    Catalyst 3750-48PS Switch Front Panel Description, page 1-5 • Catalyst 3750-24FS Switch Front Panel Description The 100BASE-FX ports on the Catalyst 3750-24FS switch are numbered 1 through 24, as shown in Figure 1-1. The SFP modules slots are numbered 1 (left) and 2 (right).
  • Page 22: Catalyst 3750-24ts Switch Front Panel Description

    Catalyst 3750-24TS Switch Front Panel Description The 10/100 ports on the Catalyst 3750-24TS switch 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 1-2.
  • Page 23: Catalyst 3750-24ps Switch Front Panel Description

    Front Panel Description Catalyst 3750-24PS Switch 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 1-4.
  • Page 24: Gigabit Ethernet Switch Front Panel Descriptions

    These sections describe the front panels for the Gigabit Ethernet switches: Catalyst 3750G-12S and Catalyst 3750G-12S-SD Switches Front Panel Description, page 1-6 • Catalyst 3750-24T, 3750G-24TS, and 3750G-24TS-1U Switches Front Panel Descriptions, page 1-6 • Catalyst 3750G-48TS Switch Front Panel Description, page 1-8 •...
  • Page 25 Figure 1-9 Catalyst 3750G-24TS-1U Front Panel SYS T MAS TR STA T DUP LX SPE ED STA CK MO DE Ca tal ys t 37 50 SER IES 10/100/1000 ports SFP module slots Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 26: Catalyst 3750g-48ts Switch Front Panel Description

    Catalyst 3750G-24PS Switch Front Panel SYS T MAS TR STA T DUP LX SPE ED STA CK MO DE Ca tal yst 37 50 G SER IES Po E-2 4 10/100/1000 PoE ports SFP module slots Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 27: Catalyst 3750g-48ps Switch Front Panel Description

    Figure 1-13 Catalyst 3750G-16TD Switch Front Panel SYS T MA STR STA T DUP LX SPE ED STA CK MO DE Ca tal yst 37 ser ies 10/100/1000 ports XENPAK module slot Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 28: Catalyst 3750g Integrated Wireless Lan Controller Switch Front Panel Description

    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. You can set the 10/100/1000 ports to operate in 10 or 100 Mbps in half or full duplex, or in 1000 Mbps in full duplex.
  • Page 29 The Auto setting is the default. However, when you select the Never setting, the port does not provide power even if a Cisco IP phone or an access point is connected to it. For information about configuring and monitoring PoE ports, see the device manager online help and the switch software configuration guide.
  • Page 30: 100base-fx Ports

    Note or Category 4 cables. When connecting the switch to workstations, servers, routers, and Cisco IP Phones, be sure that the cable is a straight-through cable. When connecting the switch to switches or hubs, use a crossover cable. When using a straight-through or crossover cable for 1000BASE-T connections, be sure to use a twisted four-pair, Category 5 cable for proper operation.
  • Page 31: Sfp Modules

    • CWDM • For a list of the SFP modules that the switches support, see the Catalyst 3750 release notes. 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.
  • Page 32: Leds

    GUI for a single switch. The switch software configuration guide describes how to use the command-line interface (CLI) to configure and monitor individual switches and switch clusters. Figure 1-15 Catalyst 3750-24TS, 3750G-24T, 3750G-16TD, 3750-48TS, 3750G-48TS, 3750G-24TS, and 3750G-24TS-1U Switch LEDs S Y S T R P S...
  • Page 33 Duplex LED System LED 1. The RPS LED is not used on the Catalyst 3750G-12S-SD switch. Figure 1-17 Catalyst 3750-24PS, 3750G-24PS, 3750-48PS, and 3750G-48PS Switch LEDs S Y S T R P S M A S T R S TA T...
  • Page 34 D U P L X S P E E D S T A C K P o E Mode button Status LED PoE LED Master LED Stack LED RPS LED Speed LED System LED Duplex LED Catalyst 3750 Switch Hardware Installation Guide 1-16 OL-6336-06...
  • Page 35: Rps Led

    The internal power supply in a switch has failed, and the RPS is providing power to the switch (redundancy has been allocated to this device). For more information about the Cisco RPS 675, see the Cisco RPS 675 Redundant Power System Hardware Installation Guide.
  • Page 36: Master Led

    The PoE status. PoE port power The PoE LED is on the Catalyst 3750-24PS, 3750G-24PS, 3750-48PS, 3750G-48PS, 3750G-24WS-S25 and 3750G-24WS-S50 switches. Even if PoE mode is not selected on the switches, this LED still shows PoE problems if they are detected. The Catalyst 3750G-S-SD does not have a PoE LED.
  • Page 37 PoE faults are caused when noncompliant cabling or Caution powered devices are connected to a PoE port. Only standard-compliant cabling can be used to connect Cisco pre-standard IP Phones and wireless access points or IEEE 802.3af-compliant devices to PoE ports. A cable or device that causes a PoE fault must be removed from the network.
  • Page 38: Figure

    Flashing green Stack member number. Green Member numbers of other stack member switches. 1. The PoE LED is only on the Catalyst 3750-24PS, 3750G-24PS, 3750-48PS, 3750G-48PS, 3750G-24WS-S25 and 3750G-24WS-S50 switches. Stack LED The stack LED shows the sequence of member switches in a stack. Up to nine switches can be members of a stack.
  • Page 39 When you select the Stack LED, the representative Stack LEDs are green when the StackWise ports (on the switch rear panel) are up, and the representative Stack LEDs are amber when the ports are down: SFP module port LEDs 1 and 2 on the Catalyst 3750-24TS switch show the status for StackWise •...
  • Page 40: Rear Panel Description

    Chapter 1 Product Overview Rear Panel Description Rear Panel Description These sections describe the rear panels for the Catalyst 3750 Fast Ethernet switches: Rear Panel Overview, page 1-22 • StackWise Ports, page 1-25 • • Power Connectors, page 1-25 •...
  • Page 41: Stackwise Ports

    CO NS OL S TA C K 36 - 72 3. 0 - 1. 1 StackWise ports 4 DC power connector 2 RJ-45 console port 5 Ground lug bracket 3 Fan exhaust Catalyst 3750 Switch Hardware Installation Guide 1-23 OL-6336-06...
  • Page 42 1 StackWise ports 4 RPS connector 2 RJ-45 console port 5 AC power connector 3 Fan exhaust Figure 1-24 Catalyst 3750-24PS and Catalyst 3750-48PS Switches Rear Panel S TA C K CO NS OL S TA C K DC IN PU TS...
  • Page 43: Stackwise Ports

    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.
  • Page 44: Dc Power Connector

    Catalyst 3750G-12S-SD switch. Cisco RPS 675 The Cisco RPS 675 has two output levels: –48 V and 12 V with a total maximum output power of 675 W. Use the supplied RPS connector cable to connect the RPS to the switch.
  • Page 45: Management Options

    You can fully configure and monitor the switch and switch cluster members from the CLI. You can access the CLI either by connecting your management station directly to the switch console port or by using Telnet from a remote management station. See the Catalyst 3750 Switch Command Reference on Cisco.com for more information.
  • Page 46 Chapter 1 Product Overview Management Options Catalyst 3750 Switch Hardware Installation Guide 1-28 OL-6336-06...
  • Page 47: Chapter 2 Switch Installation

    Where to Go Next, page 2-47 Preparing for Installation This section covers these topics: Warnings, page 2-2 • Installation Guidelines, page 2-5 • Verifying Package Contents, page 2-7 • Verifying Switch Operation, page 2-7 • Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 48: Preparing For Installation

    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. To prevent the switch from overheating, do not operate it in an area that exceeds the maximum Warning recommended ambient temperature of 113°F (45°C).
  • Page 49 Statement 1040 For connections outside the building where the equipment is installed, the following ports must be Warning connected through an approved network termination unit with integral circuit protection: 10/100/1000 Ethernet. Statement 1044 Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 50 There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only with Warning the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions. Statement 1015 Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 51: Installation Guidelines

    2. 1000BASE-ZX SFP modules can send data up to 62 miles (100 km) by using dispersion-shifted SMF or low-attenuation SMF; the distance depends on the fiber quality, the number of splices, and the connectors. Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 52 Chapter 2 Switch Installation Preparing for Installation See the Catalyst 3750 release notes for cable requirements for XENPAK module connections. Each • port must match the wave-length specifications on the other end of the cable, and for reliable communications, the cable must not exceed the required cable length.
  • Page 53: 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 material to the shipping container, and save it.
  • Page 54: Powering On The Switch And Running Post

    The other LEDs turn off and return to their operating status. When POST fails, the System LED turns amber. POST failures are usually fatal. Call Cisco Systems if your switch does not pass POST. Note Powering Off the Switch After a successful POST, disconnect the power cord from the switch.
  • Page 55: Planning Considerations

    • If you don’t specify the length of the StackWise cable, the 0.5-meter cable is supplied. If you require the 1-meter cable or 3-meter cable, you can order it from your Cisco supplier. For cable numbers, see the “StackWise Ports” section on page 1-25.
  • Page 56: Recommended Cabling Configurations

    Figure 2-1 Example of a Stack with Full Bandwidth Connections 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...
  • Page 57 3-meter StackWise cable in addition to the supplied 0.5-meter StackWise cable. This configuration also provides redundant connections. Figure 2-6 Stacking the Catalyst 3750 Switches in a Vertical Rack or on a Table Using 0.5-meter and 3-meter StackWise Cables Catalyst 3750 Switch Hardware Installation Guide...
  • Page 58: Installing The Switch

    When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack. • If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack. Statement 1006 Catalyst 3750 Switch Hardware Installation Guide 2-12 OL-6336-06...
  • Page 59: Removing Screws From The Switch

    Installing the switch in a 24-inch rack requires an optional bracket kit not included with the switch. You Note 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=.
  • Page 60 C at al ys t 3 7 5 0 SE RI ES Figure 2-12 Removing Screws from the 3750G-24TS Switch C at al ys t 3 7 5 0 SE RI ES Catalyst 3750 Switch Hardware Installation Guide 2-14 OL-6336-06...
  • Page 61: Attaching Brackets To The Catalyst 3750g-24ts Switch

    SY ST RP S M AS TR ST AT DU PL X SP EE D ST AC K M O DE 11 X 13 X 12 X 14 X Phillips flat-head screws Catalyst 3750 Switch Hardware Installation Guide 2-15 OL-6336-06...
  • Page 62 P O W E E M O T R S U P S P E C IF P LY IE D IN M A N U + 12 v @ 17 a Phillips flat-head screws Catalyst 3750 Switch Hardware Installation Guide 2-16 OL-6336-06...
  • Page 63 C at al ys t 37 50 SE RIE S Phillips flat-head screws Figure 2-19 Attaching Brackets for 24-Inch Telco Racks C at al ys t 37 50 SE RIE S Phillips flat-head screws Catalyst 3750 Switch Hardware Installation Guide 2-17 OL-6336-06...
  • Page 64: Attaching Brackets To The Catalyst 3750g Integrated Wireless Lan Controller Switches

    Attaching Brackets for 19-Inch Racks, Rear Panel Forward S E R V IC E DC IN PU TS FO R RE MO TE PO W ER SU PP LY SP EC IFI ED IN MA NU AL Catalyst 3750 Switch Hardware Installation Guide 2-18 OL-6336-06...
  • Page 65: Attaching Brackets To All Other Catalyst 3750 Switches

    Po E- 24 LA N Co nt ro lle r Phillips flat-head screws Attaching Brackets to All Other Catalyst 3750 Switches This section describes how to attach brackets to these Catalyst 3750 switches: • Catalyst 3750-24TS and Catalyst 3750G-24TS Catalyst 3750G-24T •...
  • Page 66 Figure 2-27. These illustrations show how to attach each type of bracket to one side of the switch. Follow the same steps to attach the second bracket to the opposite side. Catalyst 3750 Switch Hardware Installation Guide 2-20 OL-6336-06...
  • Page 67 @ 8. 5a -6 0 H Z Phillips flat-head screws Figure 2-26 Attaching Brackets for 19-Inch Racks C at al ys t 3 7 5 0 SE RI ES Phillips truss-head screws Catalyst 3750 Switch Hardware Installation Guide 2-21 OL-6336-06...
  • Page 68 Attaching Brackets for 23-Inch Racks, Front Panel Forward SY ST RP S M AS TR ST AT DU PL X SP EE D ST AC K M O D E Phillips flat-head screws Catalyst 3750 Switch Hardware Installation Guide 2-22 OL-6336-06...
  • Page 69 Attaching Brackets for 24-Inch Racks, Front Panel Forward SY ST RP S M AS TR ST AT DU PL X SP EE D ST AC K M O D E Phillips flat-head screws Catalyst 3750 Switch Hardware Installation Guide 2-23 OL-6336-06...
  • Page 70 >9 A , 50 @ 8. 5a -6 0 H Z Phillips flat-head screws Figure 2-32 Attaching Brackets for 24-Inch Telco Racks C at al ys t 37 50 SE RIE S Phillips flat-head screws Catalyst 3750 Switch Hardware Installation Guide 2-24 OL-6336-06...
  • Page 71 M AS TR ST AT DU PL X SP EE D ST AC K M O D E Phillips flat-head screws Figure 2-34 Attaching Brackets for ETSI Racks, Rear Panel Forward Phillips flat-head screws Catalyst 3750 Switch Hardware Installation Guide 2-25 OL-6336-06...
  • Page 72: Mounting The Switch In A Rack

    STA CK MO DE Ca tal ys t 37 50 SER IES Phillips machine screws Figure 2-36 Mounting the Other Catalyst 3750 Switches in a Rack SYS T MA STR STA T DUP LX SPE ED STA CK MO DE...
  • Page 73 “Planning Considerations” section on page 2-9 for information on powering considerations. 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”...
  • Page 74: Attaching The Cable Guide

    Ca tal yst 37 50 SER IES Cable guide screws The 48-port Catalyst 3750 switches ship with the cable guide shown in Figure 2-39. This cable guide Note secures up to 48 cables. Use the supplied black screw to mount it on the left bracket.
  • Page 75: Wall-mounting

    Chapter 2 Switch Installation Installing the Switch Figure 2-40 Attaching the Cable Guide on the Catalyst 3750 Integrated Wireless LAN Controller Switches SYST MAST R ST A T DUPL X Ca taly st SPEE D 375 0G ST ACK Wi rel ess...
  • Page 76: Attaching The Brackets To The Switch For Wall-mounting

    If an RPS is not connected to the switch, install an RPS connector cover on the back of the switch. Statement 265 Figure 2-42 Attaching the RPS Connector Cover on the Catalyst 3750 Switch DC IN PU TS S TA C K...
  • Page 77: Mounting The Switch On A Wall

    “Planning Considerations” section on page 2-9 for information on powering considerations. • 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”...
  • Page 78: Connecting Stackwise Cable To Stackwise Ports

    “Planning Considerations” section on page 2-9 for information on powering considerations. 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”...
  • Page 79 Also make sure that you remove the correct screws from the StackWise port. See Figure 2-45 for correct removal procedures and Figure 2-46 for incorrect removal procedures. Catalyst 3750 Switch Hardware Installation Guide 2-33 OL-6336-06...
  • Page 80 S T A C K Figure 2-46 Incorrect Removal of a StackWise Cable from a StackWise Port S T A C K C O N S O S T A C K Catalyst 3750 Switch Hardware Installation Guide 2-34 OL-6336-06...
  • Page 81: Installing And Removing Sfp Modules

    Catalyst 3750 switches. These field-replaceable modules provide uplink interfaces. You can use any combination of SFP modules. See the Catalyst 3750 release notes for the list of SFP modules that the Catalyst 3750 switch supports. Each port must match the wave-length specifications on the other end of the cable, and the cable must not exceed the stipulated cable length for reliable communications.
  • Page 82: Removing Sfp Modules From Sfp Module Slots

    Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis. Step 1 Disconnect the cable from the SFP module. Step 2 For reattachment, note which cable connector plug is send (TX) and which is receive (RX). Catalyst 3750 Switch Hardware Installation Guide 2-36 OL-6336-06...
  • Page 83: Installing And Removing Xenpak Modules

    Note switch software documentation. 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.
  • Page 84: Installing A Xenpak Module

    Step 1 Remove the two Phillips-head retaining screws from the XENPAK module slot cover, and store them Step 2 for later use. Remove the cover, as shown in Figure 2-51. Step 3 Catalyst 3750 Switch Hardware Installation Guide 2-38 OL-6336-06...
  • Page 85 Optical bore dust plug Captive installation screw Secure the XENPAK module in place by tightening the two captive installation screws. Do not Step 6 overtighten the captive screws. Catalyst 3750 Switch Hardware Installation Guide 2-39 OL-6336-06...
  • Page 86: Removing A Xenpak Module

    Figure 2-53. Step 5 Figure 2-53 Removing a XENPAK Module C a ta ly s t 3 7 5 0 s e ri e s Optical bore dust plug Captive installation screw Catalyst 3750 Switch Hardware Installation Guide 2-40 OL-6336-06...
  • Page 87: Connecting To The 10/100 And 10/100/1000 Ports

    3750-48PS, 3750G-48PS, 3750G-24WS-S25, and the 3750G-24WS-S50 switches to either automatically provide PoE when a Cisco IP Phone, Cisco Aironet Access Point, or end device compliant with IEEE 802.3af is connected or never to provide PoE, even if an IP phone or an access point is connected.
  • Page 88 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 Cisco IP phone to the switch.
  • Page 89: Connecting To An Sfp Module

    Chapter 2 Switch Installation Connecting to an SFP Module Many legacy powered devices, including older Cisco IP phones and access points that do not Note fully support IEEE 802.3af, might not support PoE when connected to the switches by a crossover cable.
  • Page 90: Connecting To A Fiber-optic Sfp Module

    S E R IE S 23 X 13 X 24 X C a ta ly s t 3 7 5 0 S E R IE S 23 X 14 X 24 X LC connector Catalyst 3750 Switch Hardware Installation Guide 2-44 OL-6336-06...
  • Page 91: Connecting To 1000base-t Sfp Modules

    The LED turns green when the switch and the target device have an established link. The LED turns amber while the STP discovers the network topology and searches for loops. This process takes about 30 seconds, and then the port LED turns green. Catalyst 3750 Switch Hardware Installation Guide 2-45 OL-6336-06...
  • Page 92: Connecting To A Xenpak Module

    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,” solutions to cabling problems. Catalyst 3750 Switch Hardware Installation Guide 2-46 OL-6336-06...
  • Page 93: Where To Go Next

    Use the CLI to configure the switch as a member of a cluster or as an individual switch from the • console. See the Catalyst 3750 Switch Command Reference on Cisco.com for information on using the CLI with a Catalyst 3750 switch.
  • Page 94 Chapter 2 Switch Installation Where to Go Next Catalyst 3750 Switch Hardware Installation Guide 2-48 OL-6336-06...
  • Page 95: Chapter 3 Troubleshooting

    When the switch begins POST, the System, the RPS, the Master, the Status, the Duplex, the Speed, and the Stack LEDs turn green. (On the Power over Ethernet [PoE] Catalyst 3750 switches, the PoE LED also turns green as POST begins.) The System LED flashes green, and the other LEDs remain continuous green.
  • Page 96: Diagnosing Problems

    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.com, or the documentation that came with your SNMP application for details.
  • Page 97 Bad adapter in attached device Excessive errors found in port Run adapter card diagnostic • • statistics. utility. STP checking for possible Wait 30 seconds for the port • loops. LED to turn green. Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 98 Incorrect baud rate. Reset the emulation software to management console 9600 baud. Amber system LED Fatal POST error detected. Contact Cisco Systems. Alternating green and amber Controller not functioning properly. Contact Cisco Systems. system LED Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 99 You can also use the Note or IEEE CNA, CMS, or CLI to 802.3af-compliant search for PoE faults. devices to PoE ports. A cable or device that causes a PoE fault must be removed from the network. Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 100 StackWise port for bent pins or damaged connectors. If the StackWise cable is bad, replace it with a known good cable. 1. Applies only to the Catalyst 3750G-24WS-S25 and 3750G-24WS-S50 switches. Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 101: Replacing A Failed Stack Member

    Catalyst 3750G Integrated Wireless LAN Controller Switch Serial Number Location S TA C K S TA C K DC INP UT S FO R RE MO PO WE R SU PP LY SP EC IFIE D IN MA NU AL SN: XXXNNNNXXXX Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 102 Chapter 3 Troubleshooting Serial Number Location Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 103: Appendix

    Specifications for the Catalyst 3750-48TS Switch, Table A-13 on page A-13 Specifications for the Catalyst 3750G-48TS Switch, Table A-14 on page A-13 • • Specifications for the Catalyst 3750G-24WS-S25 and 3750G-24WS-S50 Switch, Table A-14 on page A-13 Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 104 Power consumption 94 W, 321 BTUs per hour Physical Dimensions Weight 10 lb (4.6 kg) Dimensions (H x W x D) 1.73 x 17.5 x 12.8 in. (4.4 x 44.5 x 32.6 cm) Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 105 Appendix A Technical Specifications Table A-3 Specifications for the Catalyst 3750-24FS 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)
  • Page 106 Appendix A Technical Specifications Table A-4 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)
  • Page 107 165 W, 563 BTUs per hour Power rating 0.165 kVA Physical Dimensions Weight 10 lb (4.6 kg) Dimensions (H x W x D) 1.73 x 17.5 x 12.8 in. (4.4 x 44.5 x 32.6 cm) Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 108 Appendix A Technical Specifications Table A-6 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)
  • Page 109 Range from 4 to 15.4 W per port, up to 370 W switch maximum Physical Dimensions Weight 13.5 lb (6.1 kg) Dimensions (H x W x D) 1.73 x 17.5 x 14.9 in. (4.4 x 44.5 x 37.8 cm) Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 110 Appendix A Technical Specifications Table A-8 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)
  • Page 111 Range from 4 to 15.4 W per port, up to 370 W switch maximum Physical Dimensions Weight 15.5 lb (7 kg) Dimensions (H x W x D) 1.73 x 17.5 x 16.1 in. (4.4 x 44.5 x 40.9 cm) Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 112 180 W, 615 BTUs per hour Power rating 0.180 kVA Physical Dimensions Weight 12.5 lb (5.7 kg) Dimensions (H x W x D) 1.73 x 17.5 x 16.1 in. (4.4 x 44.5 x 40.9 cm) Catalyst 3750 Switch Hardware Installation Guide A-10 OL-6336-06...
  • Page 113 190 W, 650 BTUs per hour Power rating 0.190 kVA Physical Dimensions Weight 12.5 lb (5.7 kg) Dimensions (H x W x D) 2.59 x 17.5 x 11.6 in. (6.6 x 44.5 x 29.5 cm) Catalyst 3750 Switch Hardware Installation Guide A-11 OL-6336-06...
  • Page 114 100 W, 314 BTUs per hour Power rating 0.10 kVA Physical Dimensions Weight 12 lb (5.5 kg) Dimensions (H x W x D) 1.73 x 17.5 x 14.9 in. (4.4 x 44.5 x 37.8 cm) Catalyst 3750 Switch Hardware Installation Guide A-12 OL-6336-06...
  • Page 115 Appendix A Technical Specifications Table A-13 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)
  • Page 116 Range from 4 to 15.4 W per port, up to 370 W switch maximum Physical Dimensions Weight 21 lb (9.5 kg) Dimensions (H x W x D) 3.5 x 17.5 x 14.5in. (8.9 x 44.5 x 36.8 cm) Catalyst 3750 Switch Hardware Installation Guide A-14 OL-6336-06...
  • Page 117: Appendix

    A P P E N D I X 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. This appendix includes these sections: “Connector Specifications”...
  • Page 118: 10/100 And 10/100 /1000 Ports

    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 Figure B-1 show the pinouts.
  • Page 119: Sfp Module Ports

    5-meter, MT-RJ-to-ST multimode cable CAB-MTRJ-ST-MM-5M 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. Figure B-4 Fiber-Optic SFP Module LC Connector Warning Invisible laser radiation may be emitted from disconnected fibers or connectors.
  • Page 120: Xenpak Module Ports

    TP3- 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-6.
  • Page 121: Cable And Adapter Specifications

    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” section on page B-5 • “Four Twisted-Pair Cable Pinouts for 10/100 Ports” section on page B-6 •...
  • Page 122: Four Twisted-pair Cable Pinouts For 10/100 Ports

    Switch 1 RD+ 1 RD+ 2 RD- 2 RD- 3 TD+ 3 TD+ 6 TD- 6 TD- 4 NC 4 NC 5 NC 5 NC 7 NC 7 NC 8 NC 8 NC Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 123: Four Twisted-pair Cable Pinouts For 1000base-t Ports

    Switch 1 TPO+ 1 TP0+ 2 TPO- 2 TP0- 3 TP1+ 3 TP1+ 6 TP1- 6 TP1- 4 TP2+ 4 TP2+ 5 TP2- 5 TP2- 7 TP3+ 7 TP3+ 8 TP3- 8 TP3- Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 124: Crossover Cable And Adapter Pinouts

    10/100, 10/100/1000, or 1000BASE-T SFP module port on the switch, regardless of the type of device on the other end of the connection. The auto-MDIX feature is enabled by default on switches running Cisco IOS Release 12.2(18)SE or later. For releases between Cisco IOS Release 12.1(14)EA1 and 12.2(18)SE, the auto-MDIX feature is disabled by default.
  • Page 125: Console Port

    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. Table B-3 Console Port Signaling Using a DB-25 Adapter Switch Console RJ-45-to-DB-25 Console Port (DTE) Terminal Adapter Device Signal DB-25 Pin Signal Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 126 Appendix B Connector and Cable Specifications Cable and Adapter Specifications Catalyst 3750 Switch Hardware Installation Guide B-10 OL-6336-06...
  • Page 127: Appendix

    We recommend that you use 18 AWG copper wiring for Network Equipment Building Systems (NEBS) Note installation. This guideline follows the standard guidelines for DC power wiring in the Central Office. The grounding architecture of this product is DC-isolated (DC-I). Note Catalyst 3750 Switch Hardware Installation Guide OL-6336-05...
  • Page 128 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 Catalyst 3750 Switch Hardware Installation Guide OL-6336-05...
  • Page 129 Use either the front ground connector or the rear ground connector. You cannot use both at the same time. Figure C-3 Torquing Ground-Lug Screws S TA C K CO NS OL S TA C K 36 - 72 3. 0 - 1. – A – Torque to 15 lbf-in. Catalyst 3750 Switch Hardware Installation Guide OL-6336-05...
  • Page 130 Apply tape to the circuit-breaker switch handle, and move the circuit-breaker handle to the off position. Locate and remove the terminal block plug (see Figure C-4). Step 2 Figure C-4 Terminal Block Plug Catalyst 3750 Switch Hardware Installation Guide OL-6336-05...
  • Page 131 (7.4 mm) of insulation from the wire. Stripping more than the recommended amount of wire can leave exposed wire from the terminal block plug after installation. Figure C-6 Stripping the DC-Input Power Source Wire 0.25 inch (6.3 mm) ± 0.02 inch (0.5 mm) Catalyst 3750 Switch Hardware Installation Guide OL-6336-05...
  • Page 132 DC-input power source wire extends from the terminal block plug. Statement 122 Figure C-7 Inserting Wires in the Terminal Block Plug Return Feed A Negative Return Feed B Negative Catalyst 3750 Switch Hardware Installation Guide OL-6336-05...
  • Page 133 Repeat Steps 4 and 5 for the remaining three DC-input power source wires. Figure C-9 shows the Step 7 completed wiring of a terminal block plug. Figure C-9 Completed Wiring of Terminal Block Plug Return Feed A Negative Return Feed B Negative Catalyst 3750 Switch Hardware Installation Guide OL-6336-05...
  • Page 134 To comply with the intrabuilding lightning surge requirements, intrabuilding wiring must be shielded, Caution and the shield for the wiring must be grounded at both ends. The Catalyst 3750G-12S-SD switch is suitable only for intrabuilding or nonexposed wiring connections. Caution Catalyst 3750 Switch Hardware Installation Guide OL-6336-05...
  • Page 135: Appendix

    Stacking the Switches (Optional), page D-4 Connecting to the Console Port, page D-5 Starting the Terminal Emulation Software, page D-6 Connecting to a Power Source, page D-7 Entering the Initial Configuration Information, page D-8 Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 136: 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. For switches running releases earlier than Cisco IOS Release 12.1(14)EA1, go to the “Taking Out What...
  • Page 137: Taking Out What You Need

    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 The Catalyst 3750 Switch, Adapter Cable, AC Power Cord, and the StackWise Cable SYST MAST R STAT...
  • Page 138: Stacking The Switches (optional

    Configuring the Switch with the CLI-Based Setup Program Stacking the Switches (Optional) The auto-MDIX feature is enabled by default on switches running Cisco IOS Release 12.2(18)SE or later. For releases between Cisco IOS Release 12.1(14)EA1 and 12.2(18)SE, the auto-MDIX feature is disabled by default.
  • Page 139: Connecting To The Console Port

    Figure D-4. Attach the DB-9 female DTE of the adapter cable to a PC serial port, or attach an appropriate adapter to Step 2 the terminal. Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 140: Starting The Terminal Emulation Software

    Configure the baud rate and character format of the PC or terminal to match these console port default Step 3 characteristics: 9600 baud • 8 data bits • 1 stop bit • No parity • • None (flow control) Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 141: Connecting To A Power Source

    Note 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.
  • Page 142: Entering The Initial Configuration Information

    On a command switch, the host name is limited to 28 characters; on a member switch to 31 characters. Do not use -n, where n is a number, as the last character in a host name for any switch. Enter host name [Switch]: host_name Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 143 The following configuration command script was created: hostname switch1 enable secret 5 $1$Ulq8$DlA/OiaEbl90WcBPd9cOn1 enable password enable_password line vty 0 15 password terminal-password no snmp-server no ip routing interface Vlan1 no shutdown ip address 10.4.120.106 255.0.0.0 Catalyst 3750 Switch Hardware Installation Guide OL-6336-06...
  • Page 144 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 on Cisco.com. Catalyst 3750 Switch Hardware Installation Guide...
  • Page 145: I N D E X

    10/100 ports connector 1-25 cables caution 1-25 specifications A-2 to A-13 cabling adapter pinouts, terminal 10/100/1000 ports 2-41 RJ-45-to-DB-25 10/100 ports 1-12, 2-41 RJ-45-to-DB-9 considerations altitude, operating and storage A-2 to A-13 pinouts Catalyst 3750 Switch Hardware Installation Guide IN-1 OL-6336-06...
  • Page 146 DC-input power source caution 1-26 accessing through console port DC input voltages for RPS 675 A-2 to A-13 code compliance warning DC power command-line interface connecting to C-1 to C-8 See CLI specifications Catalyst 3750 Switch Hardware Installation Guide IN-2 OL-6336-06...
  • Page 147 DC power C-2 to C-3 1-17 to 1-18 speed 1-18 stack 1-20 STATUS 1-18 HP OpenView 1-27 system 1-17 humidity, relative A-2 to A-13 troubleshooting with lightning activity warning Catalyst 3750 Switch Hardware Installation Guide IN-3 OL-6336-06...
  • Page 148 10/100 1-10 pinouts numbering of 10/100/1000 1-10 10/100/1000 ports numbering of SFP module ports 1-8 to 1-10 10/100 ports adapters B-8 to B-9 Catalyst 3750 Switch Hardware Installation Guide IN-4 OL-6336-06...
  • Page 149 RJ-45 connector, console port StackWise ports 1-25 RJ-45 console port straight-through cable 1-22 pinout connecting to four twisted-pair 10/100 ports connector four twisted-pair 1000BASE-T ports 1-26 connector cover warning two twisted-pair 10/100 ports 2-2, 2-30 Catalyst 3750 Switch Hardware Installation Guide IN-5 OL-6336-06...
  • Page 150 DC power defined disposal of product ground connection 2-3, C-2 installation lightning activity overheating plug-socket accessibility PoE shock hazard 1-11, 2-4, 2-41 preventing bodily injury 2-3, 2-12 removing jewelry Catalyst 3750 Switch Hardware Installation Guide IN-6 OL-6336-06...

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