Connecting to Dual-Purpose Ports | Cisco Systems Cisco ME 3400

Chapter 2 Switch Installation

Connecting to Dual-Purpose Ports

Step 3 Observe the port status LED.

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.

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.

Step 4 If necessary, reconfigure and restart the switch or target device.

Connecting to Dual-Purpose Ports

You can configure the dual-purpose ports on the Cisco ME 3400G-12CS and Cisco ME 3400-2CS switches as either 10/100/1000 ports or as SFP module slots. Figure 2-20shows the

Cisco ME 3400G-12CS switch dual-purpose ports. This section also applies to the Cisco ME 3400-2CS switches.

To connect to a dual-purpose port, follow these steps:

Step 1 Connect an RJ-45 connector or an SFP module to the port, as shown in Figure 2-20.

For more information about RJ-45 connectors and SFP modules, see the “Connecting to the 10/100 and 10/100/1000 Ports” section on page 2-20and the “Connecting to SFP Modules” section on page 2-21.

Figure 2-20 Connecting to a Dual-Purpose Port

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Step 2 Connect the other end of the cable to the other device. The switch automatically detects the connection and configures the port.

By default, the switch detects whether an RJ-45 connector or SFP module is connected to a dual-purpose port and configures the port accordingly. You can change this setting and configure the port to recognize only an RJ-45 connector or only an SFP module by using the media type interface configuration command. For more information, see the command reference.

Cisco ME 3400 Ethernet Access Switch Hardware Installation Guide

	OL-7677-04	2-23

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Cisco Systems Cisco ME 3400 manual Connecting to Dual-Purpose Ports, Connecting to a Dual-Purpose Port

Contents

Americas Headquarters Page N T E N T S Installing and Removing SFP Modules Speed, Duplex, and Autonegotiation IP Settings D-2 Organization AudiencePurpose Conventions Related Publications OL-7677-04 Switch Models Setting up the Switch Front Panel Description 1describes the switch models Cisco ME 3400-24TS AC Ethernet Access Switch Front Panel Cisco ME 3400-24TS AC and DC Switches Front Panel Cisco ME 3400G-12CS AC and DC Switches Front Panel Cisco ME 3400-24FS Switch AC Switch Front Panel System LED Dual-purpose ports Console port SFP module ports Cisco ME 3400G-2CS Switch Front Panel 10/100 Ports Only the Cisco ME-3400-24TS Switches SFP Modules SFP Module Ports These illustrations show the location of the System LED LEDsSFP Module Patch Cable System LED Console Port LEDs Power Supply LEDs Only Cisco ME 3400G-12CS Switches Dual-Purpose Port LEDs Console Port Exhaust fan Cable lock Ground connector Cisco ME 3400-24TS Switch Rear PanelCisco ME 3400-24FS Switch Rear Panel Cable lock Ground connector Fan exhaust Fan exhaust AC power connector Ground connector Power Supply FeaturesCisco ME 3400G-12S Switch Rear Panel Cisco ME 3400-2CS Switch Rear Panel Management Options Cisco ME AC Switch Power SupplyCisco ME DC Switch Power Supply Network Configurations This section covers these topics Preparing for Installation Switch Installation Preparing for Installation 122F 50C Statement Cisco ME 3400G-12CS Switches Installation GuidelinesCisco ME 3400-24TS Switches This section describes these installation procedures Verifying Switch OperationInstalling the Switch Powering Off the Switch Rack-Mounting Removing Screws from the Switch Rack-Mounting Brackets Attaching Brackets to the Switch Attaching Brackets to 19-Inch Racks 191022 Attaching Brackets for 23-Inch Racks Attaching Brackets for 24-Inch Racks Attaching Brackets for Etsi Racks Phillips machine screws Cable guide and screw Mounting the Switch in a Rack Phillips flat-head screws Attaching the Brackets to the Switch for Wall-MountingWall-Mounting 11 Mounting the Switch on a Wall Mounting the Switch on a Wall Table- or Shelf-Mounting Installing and Removing SFP Modules 12 SFP Module with a Bale-Clasp Latch Installing SFP Modules Bale clasp Removing SFP Modules Inserting and Removing the SFP Module Patch Cable 17 Connecting to an Ethernet Port Connecting to the 10/100 and 10/100/1000 Ports LC connector Connecting to SFP ModulesConnecting to Fiber-Optic SFP Modules 19 Connecting to a 1000BASE-T SFP Module Connecting to 1000BASE-T SFP Modules 20 Connecting to a Dual-Purpose Port Connecting to Dual-Purpose Ports Where to Go Next This section includes these troubleshooting topics Diagnosing ProblemsCheck Switch Post Results Ethernet and Fiber Cables Check Switch LEDsCheck Switch Connections Bad or Damaged Cable Spanning Tree Loops SFP Module Port IssuesPort and Interface Settings Ping the End Device Autonegotiation and NIC Cards How to Clear the Switch IP Address and ConfigurationCheck Switch Performance Speed, Duplex, and Autonegotiation Serial Number Location on the Cisco ME 3400G-2CS Switch Locating the Switch Serial Number Serial Number Location on the Cisco ME 3400G-2CS Switch 10/100 Ports Connector SpecificationsThese sections describe the connectors used with the switch Figure A-1 10/100 Port Pinouts Dual-Purpose Ports Figure A-2 Fiber-Optic SFP Module LC Connector SFP Module Cable Specifications Cable and Adapter Specifications Two Twisted-Pair Cable Pinouts Identifying a Crossover Cable Four Twisted-Pair Cable Pinouts for 1000BASE-T PortsCrossover Cable and Adapter Pinouts RxD TxD Adapter PinoutsTxD RxD Switch Console RJ-45-to-DB-25 Port DTE This appendix lists the switch technical specifications Technical Specifications AC Power Requirements Physical Dimensions OL-7677-04 Connecting to DC Power Review these safety warnings before you ground the switch Grounding the SwitchPreparing the Ground Wire Figure C-1 Stripping the Ground Wire Figure C-3 Torquing Ground-Lug Screws Torque to 15 lbf-in Telco rack Connecting the Grounding Wire to Earth GroundTelco rack Grounding wire Primary power feed Secondary redundant power feed Wiring the DC-Input Power Source All Cisco ME 3400 Switches Cisco ME 3400-24TS SwitchesCisco ME 3400G-12CS Switches Figure C-8 Terminal Block Plug Console Figure C-11 Inserting Wires in the Terminal Block Plug Figure C-13 Completed Wiring of Terminal Block Plug OL-7677-04 Starting the Terminal-Emulation Software Accessing the CLI Through the Console Port Completing the Setup Program Entering the Initial Configuration InformationIP Settings Switch or as a standalone switch Enter an enable secret password, and press ReturnEnter an enable password, and press Return Enter a virtual terminal Telnet password, and press Return These choices appear Numerics Auto-MDIX Pinouts See also connectors and cables cautions Connectors and cables 10/100 ports Console port Cisco IOS command-line interface CiscoViewConnecting outside the building warning Connection procedures IN-3 Installing SFP modules 2-17 to Connectors LEDs Running at power on Power Connecting to ACConnecting to DC Power on IN-5 Ground connection IN-6