Cisco Systems ME 2400 manual Connecting to the 10/100 Ports, Connecting to an Ethernet Port

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Chapter 2 Switch Installation

Connecting to the 10/100 Ports

Connecting to the 10/100 Ports

The switch 10/100 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. Connecting devices that do not autonegotiate or that have their speed and duplex parameters manually set can reduce performance or result in no linkage.

To maximize performance, choose one of these methods for configuring the Ethernet ports:

•Let the ports autonegotiate both speed and duplex.

•Set the port speed and duplex parameters on both ends of the connection. Follow these steps to connect to 10BASE-T or 100BASE-TX devices:

Step 1 When connecting to workstations, servers, and routers, connect a straight-through cable to an RJ-45 connector on the front panel. (See Figure 2-24.) When connecting to switches or repeaters, use a crossover cable. (See the “Cable and Adapter Specifications” section on page B-3for cable-pinout descriptions.)

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. Therefore, you can use either a crossover or a straight-through cable for connections to a copper 10/100 or 1000BASE-T SFP module port on the switch, regardless of the type of device on the other end of the connection.

Step 2 Connect the other end of the cable to an RJ-45 connector on the other device. The port LED turns on when both the switch and the connected device have established link. (See Figure 2-24.)

Figure 2-24 Connecting to an Ethernet Port

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The port LED is amber while Spanning Tree Protocol (STP) discovers the topology and searches for loops. This takes about 30 seconds, and then the port LED turns green. If the port LED does not turn on, the device at the other end might not be turned on, or there might be a cable problem or a problem with the adapter installed in the attached device. See Chapter 3, “Troubleshooting,” for solutions to cabling problems.

Note On user network interface (UNI) ports, the port LED is green after the link is established. It does not turn amber because. STP is not supported.

Cisco ME 2400 Ethernet Access Switch Hardware Installation Guide

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Contents Corporate Headquarters Cisco Systems, Inc. All rights reserved N T E N T S Preparing for Installation Crossover Cable and Adapter Pinouts B-5 OL-7678-01 Audience PurposeOrganization Conventions Bewaar Deze InstructiesSäilytä Nämä Ohjeet Guarde Estas Instruções GEM Disse Anvisninger Xii Related Publications XiiiObtaining Documentation Cisco.comProduct Documentation DVD Documentation Feedback Cisco Product Security OverviewOrdering Documentation Reporting Security Problems in Cisco Products Obtaining Technical AssistanceCisco Technical Support & Documentation Website Submitting a Service Request Definitions of Service Request SeverityObtaining Additional Publications and Information Setting up the Switch FeaturesFront Panel Description Front Panel Descriptions 10/100 PortsSFP Module Slots SFP ModulesLEDs SFP Module Patch CableSystem LED Rear Panel Description Port LEDsPower Connectors Cisco ME AC Switch Power SupplyCisco ME DC Switch Power Supply Management OptionsNetwork Configurations Switch Installation Preparing for InstallationStatement 122F 50C Statement Installation Guidelines Micron MHz/km Cable DistanceGLC-SX-MM Verifying Package Contents Verifying Switch Operation Installing the SwitchPowering Off the Switch Rack-MountingRemoving Screws from the Switch Removing Screws from the Cisco ME SwitchAttaching Brackets to the Switch Rack-Mounting BracketsAttaching Brackets to 19-Inch Racks Attaching Brackets for 23-Inch Racks Attaching Brackets to 24-Inch Racks 132665 Attaching Brackets for Etsi Racks Mounting the Switch in a Rack 15 Mounting the Cisco ME Switch in a RackAttaching the Brackets to the Switch for Wall-Mounting Wall-MountingAttaching the Cable Guide Mounting the Switch on a Wall 18 Mounting the Switch on a WallInstalling and Removing SFP Modules Installing SFP Modules into SFP Module SlotsTable- or Shelf- Mounting 19 SFP Module with a Bale-Clasp Latch Removing SFP Modules from SFP Module Slots Inserting and Removing the SFP Module Patch Cable Connecting to the 10/100 Ports 24 Connecting to an Ethernet PortConnecting to SFP Modules Connecting to Fiber-Optic SFP ModulesConnecting to 1000BASE-T SFP Modules 26 Connecting to a 1000BASE-T SFP ModuleWhere to Go Next OL-7678-01 Diagnosing Problems Understanding Post ResultsSymptom Possible Cause Resolution Errdisable recovery cause SFP module might be installed Verify that the SFP module is Technical Specifications OL-7678-01 Connector and Cable Specifications Connector SpecificationsFigure B-2 Fiber-Optic SFP Module LC Connector SFP Module PortsCable and Adapter Specifications Two Twisted-Pair Cable PinoutsFour Twisted-Pair Cable Pinouts for 1000BASE-T Ports TP3Crossover Cable and Adapter Pinouts Identifying a Crossover CableAdapter Pinouts Switch Console RJ-45-to-DB-25 Port DTE Connecting to DC Power Grounding the Switch Preparing the Ground WireTorque to 15 lbf-in Connecting the Grounding Wire to Earth Ground Wiring the DC-Input Power Source Console Figure C-9 Inserting Wires in the Terminal Block Plug Figure C-10 Torquing the Terminal-Block Captive Screws Figure C-12 Inserting the Terminal Block in the Block Header OL-7678-01 Configuring the Switch with the CLI-Based Setup Program Accessing the CLI Through the Console PortCisco ME DC switch DC power cord Taking Out What You NeedConnecting to the Console Port Figure D-3 Connecting the Switch to a PC Starting the Terminal-Emulation SoftwareConnecting to a Power Source Entering the Initial Configuration InformationIP Settings Completing the Setup Program These choices appear OL-7678-01 Numerics IN-2 IN-3 IN-4 IN-5 IN-6
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