Cisco Systems Cisco ME 3400 manual Connecting to the 10/100 and 10/100/1000 Ports

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Chapter 2 Switch Installation

Connecting to the 10/100 and 10/100/1000 Ports

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. 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, 100BASE-TX, or 1000-BASE-T 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 2-17.) When connecting to switches or repeaters, use a crossover cable. (See the “Cable and Adapter Specifications” section on page A-4for 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, 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.

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 2-17.)

Figure 2-17 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 3400 Ethernet Access Switch Hardware Installation Guide

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OL-7677-04

 

 

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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 Setting up the Switch Switch Models1describes the switch models Front Panel DescriptionCisco ME 3400-24TS AC and DC Switches Front Panel Cisco ME 3400-24TS AC Ethernet Access Switch Front PanelCisco ME 3400-24FS Switch AC Switch Front Panel Cisco ME 3400G-12CS AC and DC Switches Front PanelCisco ME 3400G-2CS Switch Front Panel System LED Dual-purpose ports Console port SFP module ports10/100 Ports Only the Cisco ME-3400-24TS Switches SFP Module Ports SFP ModulesLEDs SFP Module Patch CableSystem LED These illustrations show the location of the System LEDConsole Power Supply LEDs Only Cisco ME 3400G-12CS Switches Port LEDsConsole Port Dual-Purpose Port LEDsCisco ME 3400-24TS Switch Rear Panel Cisco ME 3400-24FS Switch Rear PanelCable lock Ground connector Fan exhaust Exhaust fan Cable lock Ground connectorPower Supply Features Cisco ME 3400G-12S Switch Rear PanelCisco ME 3400-2CS Switch Rear Panel Fan exhaust AC power connector Ground connectorCisco ME AC Switch Power Supply Cisco ME DC Switch Power SupplyNetwork Configurations Management OptionsPreparing for Installation This section covers these topicsSwitch Installation Preparing for Installation 122F 50C Statement Cisco ME 3400G-12CS Switches Installation GuidelinesCisco ME 3400-24TS Switches Verifying Switch Operation Installing the SwitchPowering Off the Switch This section describes these installation proceduresRemoving Screws from the Switch Rack-MountingAttaching Brackets to the Switch Rack-Mounting BracketsAttaching Brackets to 19-Inch Racks 191022 Attaching Brackets for 23-Inch Racks Attaching Brackets for 24-Inch Racks Attaching Brackets for Etsi Racks Mounting the Switch in a Rack Phillips machine screws Cable guide and screwPhillips flat-head screws Attaching the Brackets to the Switch for Wall-MountingWall-Mounting Mounting the Switch on a Wall 11 Mounting the Switch on a WallInstalling and Removing SFP Modules Table- or Shelf-MountingInstalling SFP Modules 12 SFP Module with a Bale-Clasp LatchRemoving SFP Modules Bale claspInserting and Removing the SFP Module Patch Cable Connecting to the 10/100 and 10/100/1000 Ports 17 Connecting to an Ethernet PortLC connector Connecting to SFP ModulesConnecting to Fiber-Optic SFP Modules Connecting to 1000BASE-T SFP Modules 19 Connecting to a 1000BASE-T SFP ModuleConnecting to Dual-Purpose Ports 20 Connecting to a Dual-Purpose PortWhere to Go Next This section includes these troubleshooting topics Diagnosing ProblemsCheck Switch Post Results Check Switch LEDs Check Switch ConnectionsBad or Damaged Cable Ethernet and Fiber CablesSFP Module Port Issues Port and Interface SettingsPing the End Device Spanning Tree LoopsHow to Clear the Switch IP Address and Configuration Check Switch PerformanceSpeed, Duplex, and Autonegotiation Autonegotiation and NIC CardsLocating the Switch Serial Number Serial Number Location on the Cisco ME 3400G-2CS SwitchSerial 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 Figure A-2 Fiber-Optic SFP Module LC Connector Dual-Purpose PortsCable and Adapter Specifications SFP Module Cable SpecificationsTwo 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 Technical Specifications This appendix lists the switch technical specificationsAC 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 Torque to 15 lbf-in Figure C-3 Torquing Ground-Lug ScrewsTelco rack Connecting the Grounding Wire to Earth GroundTelco rack Grounding wire Wiring the DC-Input Power Source Primary power feed Secondary redundant power feedAll 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 Accessing the CLI Through the Console Port Starting the Terminal-Emulation SoftwareCompleting the Setup Program Entering the Initial Configuration InformationIP Settings Enter an enable secret password, and press Return Enter an enable password, and press ReturnEnter a virtual terminal Telnet password, and press Return Switch or as a standalone switchThese choices appear Auto-MDIX Pinouts See also connectors and cables cautions NumericsCisco IOS command-line interface CiscoView Connecting outside the building warningConnection procedures Connectors and cables 10/100 ports Console portInstalling SFP modules 2-17 to IN-3LEDs Running at power on Power Connecting to AC Connecting to DCPower on ConnectorsGround connection IN-5IN-6