Cisco Systems 520 manual Figure A-12 Identifying a Crossover Cable

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Appendix A Reference

Cable and Adapter Specifications

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. The wire connected to the pin on the outside of the left plug should be a different color from the wire connected to the pin on the inside of the right plug. (See Figure A-12.)

Figure A-12 Identifying a Crossover Cable

Pin 1 on one connector and pin 1 on the other connector should be different colors.

Pin 1						Pin 1
Pin 1						Pin 1

200915

		User Guide for the Catalyst Express 520 Switches
		User Guide for the Catalyst Express 520 Switches
	OL-12761-02			A-15
	OL-12761-02			A-15

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Contents User Guide for Catalyst Express 520 Switches Page Page Page N T E N T S Installing the Switch Troubleshooting the Switch Cabling Guidelines A-10 Ethernet Port Connections A-10 How This Guide Is Organized Using This GuideMonitor the status and the performance of the switch Related Documentation Switch Documentation SetXii Chapter Topics IntroductionOverview 2show the switches in network examplesCatalyst Express 520-24TT-K9 Catalyst Express 520-8PC-K9Catalyst Express 520-24LC-K9 Catalyst Express 520-24PC-K9Cisco Smart Business Communications System Network Example Catalyst Express Switch Network Example AC power Hardware FeaturesConnector Security slotPoE LED System LEDPorts Admin buttonUplink ports View list Device Manager Software FeaturesDevice Manager Interface Security Express SetupMonitoring Cisco Configuration Assistant Supported Hardware Box ContentsSoftware Requirements Hardware RequirementsOperating System Microsoft Internet Explorer Mozilla Firefox Before You Begin Setting Up the SwitchPrerequisites Set Up the Switch Existing NetworkTroubleshooting 201615 201616 Troubleshooting Set Up the Switch No Network 191685 Enter the network setting in the Express Setup window Repeat to Step Same network as the switch IP address assigned in Step When You Are Done Secured Sessions with the SwitchInstalling the Switch Cause severe bodily injury and equipment damage. Statement Statement 371-Power Cable and AC Adapter OL-12761-02 Installation Guidelines Installing the Switch Installation Guidelines Install the Switch On a Desk or Shelf Prerequisite Install the Switch in a Rack201618 Cable guide is not used with Install the Switch on a Wall To the wall as shown in Step Connecting to the Switch Cabling Guidelines Repeat to as necessary Connect to an Ethernet PortInstall an SFP Module into an SFP Module Slot Remove an SFP Module from an SFP Module Slot Connect to a Fiber-Optic SFP Module Port Connect to a Dual-Purpose Port Either Changing the Switch Network Settings Change Optional Administrative Settings Change the Switch IP InformationMonitoring the Switch OL-12761-02 Monitoring the Switch Front Panel View Review the Front Panel View and the LEDsPoE ExplanationExplanation Status AdminSmartports Port Mode Explanation DuplexSpeed Review the Dashboard Switch DashboardReview the Port Statistics Review the Port StatusSample Alert Log Review the Alert LogMonitoring the Switch When You Are Done OL-12761-02 Troubleshooting the Switch IP Address Is Not Received from Dhcp Server Troubleshoot IP Address ProblemsSwitch Has Wrong IP Address Device Manager Does Not Display Troubleshoot Displaying of the Device ManagerDevice Manager Has a Slow Response Time Device Manager Is Not Accessible Through the NetworkDevice Manager Is Not Operating Properly Cisco IP Phones Continually Disconnect Troubleshoot Connections to the SwitchSwitch and Other Device Are Not Communicating Access Direct Managed Mode Restart the Switch Reset the Switch Recover a Username or Password Recover the Switch Software If You Need Further Help Troubleshoot a Failed Software UpgradeOL-12761-02 Reference Environmental Ranges Technical SpecificationsPower Requirements Acoustic Dimensions2 Physical DimensionsLocation of the Switch Serial Number 10/100 and 10/100/1000 Ports Connector SpecificationsFigure A-4shows the pinout for a 10/100/1000 port Appendix a Reference Connector Specifications SFP Module Ports Copper SFP Module RJ-45 ConnectorFigure A-7 10/100/1000 Port Pinouts Dual-Purpose PortsSmall Form-Factor Pluggable Module Port Connections Ethernet Port ConnectionsSMF CSS5-CABSX-LCSC= Type Cisco Part NumberTwo Twisted-Pair Cable Pinouts Cable and Adapter SpecificationsFigure A-10 Four Twisted-Pair Cable Pinouts for 1000BASE-T PortsFigure A-12 Identifying a Crossover Cable Crossover CableOL-12761-02 Cisco Support Resources Cisco Networking Professionals Connection Cisco Small and Medium-Sized Business SMB SolutionsNumerics IN-2 IN-3 IN-4 IN-5 IN-6 IN-7 IN-8 IN-9 IN-10

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