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3Com DUA1770-0AAA04 manual Repeat steps 2 and 3 for the other side of the Switch

Models: DUA1770-0AAA04

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4Repeat steps 2 and 3 for the other side of the Switch.

24CHAPTER 2: INSTALLING THE SWITCH

Figure 9 Fitting a bracket for rack-mounting

You must use the screws supplied with the securing brackets. Damage caused to the unit by using incorrect screws invalidates your warranty.

4Repeat steps 2 and 3 for the other side of the Switch.

5Insert the Switch into the 19-inch rack and secure with suitable screws (not provided). Ensure that ventilation holes are not obstructed.

6Connect network cabling.

Placing Units On If the Switch units are free-standing, up to four units can be placed one

Top of Each Other on top of the other. If you are mixing a variety of SuperStack® 3 Switch and Hub units, the smaller units must be positioned at the top.

If you are placing Switch units one on top of the other, you must use the self-adhesive rubber pads supplied. Apply the pads to the underside of each Switch, sticking one in the marked area at each corner. Place the Switch units on top of each other, ensuring that the pads of the upper unit line up with the recesses of the lower unit.

Creating an XRN Switch 4900 Series units and 3Com Switch 4050/4060 units can be

Distributed Fabric interconnected to create an XRN Distributed Fabric and then treated as a single manageable unit with one IP address. A combination of any two of these units is allowed to be interconnected.

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3Com DUA1770-0AAA04 manual Repeat steps 2 and 3 for the other side of the Switch

Contents

Switch 4900 Series Getting Started Guide Switch 4900 3C17700 Switch 4900 SX 3C17702 Switch 4924 3C17701Switch 4950 3C17706 SuperStackUNITED STATES GOVERNMENT LEGEND ENVIRONMENTAL STATEMENTEnd of Life Statement Regulated Materials StatementCONTENTS 1 INTRODUCING THE SUPERSTACK 3 SWITCH 4900 SERIES2 INSTALLING THE SWITCH ABOUT THIS GUIDE3 SETTING UP FOR MANAGEMENT Choosing the Correct Fiber CablesSNMP Management PROBLEM SOLVING SAFETY INFORMATIONC TECHNICAL SPECIFICATIONS D TECHNICAL SUPPORT PIN-OUTSPage ABOUT THIS GUIDE Conventions CommandsNotice Icons Table 2 Text ConventionsRelated DocumentationDocumentation documentation Product RegistrationDocumentation CommentsAbout the Switches Summary of Hardware Features Switch - Front View Detail 100/1000BASE-T and 10/100/1000BASE-T Ports1000BASE-SX Ports GBIC Ports LEDs Switch - Rear View Detail Unit Information Label Power Socket Redundant Power System Socket12 CHAPTER 1 INTRODUCING THE SUPERSTACK 3 SWITCH 4900 SERIES Hardware Features Switches Table 3 Hardware featuresSwitch - Front View Detail Figure 1 Switch 4900 - front viewFigure 2 Switch 4900 SX - front view 14 CHAPTER 1 INTRODUCING THE SUPERSTACK 3 SWITCH 4900 SERIESFigure 3 Switch 4924 - front view Figure 4 Switch 4950 - front view Switch - Front View DetailPorts cross-over Power/Self Test LED Table 4 LED behaviorColor IndicatesSwitch - Rear View DetailFigure 5 Switch 4900 - rear view Figure 6 Switch 4900 SX - rear viewPower Socket Default Settings supported by your Switchthe Switch units, it is returned to these defaults INSTALLING THE SWITCH Package Contents Choosing a Suitable Site Rack-mountingThe Power-up Sequence Switch 4950 - GBIC Operation Placing Units On Top of Each Other Creating an XRN Distributed FabricPackage Contents Choosing a SuitableSite Rack-mounting 4 Repeat steps 2 and 3 for the other side of the Switch The maximum number of Switch units that can be interconnected is two The Power-up Powering-up theSwitch SequenceIf there is evidence of a problem, see “Solving Problems Indicated by Fiber Cables Switch 4950 - GBIC OperationApproved GBIC TransceiversFiber SC connector Type 4 GBIC with internal EEPROM fitted 3 The transceiver connects to the network using a duplex SC connector. Attach a male duplex SC connector on the network cable into the duplex SC connector on the transceiver 32 CHAPTER 2 INSTALLING THE SWITCH SETTING UP FOR MANAGEMENT Setting Up Overview Manually Configuring IP InformationViewing Automatically Configured IP Information Methods of Managing a SwitchSetting Up Overviewwhole setup process is summarised in Figure 12. Detailed procedural Figure 12 Initial Switch Setup and Management Flow diagramManual IP Configuration Automatic IP Configurationon page You should use the automatic IP configuration method ifManually Configuring IP Information Pre-requisitesConnecting the Workstation to the Switch Configuring the Workstation with IP InformationSetting Up the Switch with IP Information IP addressUsing Command Line Interface via Telnet Figure 14 Example top-level command line interface menu Pre-requisitesYou can find pin-out diagrams for both cables in Appendix B on page Connecting the Workstation to the SwitchFigure 15 Connecting a workstation to the Switch via the console port Setting Up the Switch with IP Information Figure 16 Example top-level command line interface menu42 CHAPTER 3 SETTING UP FOR MANAGEMENT Configured IP ViewingAutomatically InformationConnecting the Workstation to the Switch 44 CHAPTER 3 SETTING UP FOR MANAGEMENTPre-requisites Viewing IP Information via the Console Port Figure 18 Example top-level command line interface menu 46 CHAPTER 3 SETTING UP FOR MANAGEMENTRefer to “Setting Up Command Line Interface Management” on page Refer to “Setting Up Web Interface Management” on pageCommand Line Refer to “Setting Up SNMP Management” on pageusing Telnet InterfaceSetting Up Web described in “Setting Up Overview” on pagetelnet Choosing a BrowserOver the Network http//xxx.xxx.xxx.xxx50 CHAPTER 3 SETTING UP FOR MANAGEMENT c\ pingSetting Up SNMP Default Users andPasswords system management snmp community command - refer to theThe security device user modify command on the CLI, or You can change the default passwords using eitherThe gettingStarted command on the CLI, or Default UsersPROBLEM SOLVING Solving Problems Indicated by LEDs Solving Hardware ProblemsSolving Communication Problems Solving Software Upgrade Problems Solving Problems solutions belowThe Power LED does not light On powering-up, the Power/Self Test LED lights yellowProblems Solving HardwareA fan failure warning message is received Error message indicating that the GBIC transceiver is invalid Error message indicating that the GBIC transceiver is faultyUnit fails, no SNMP fan failure message is received Solving Communication Problems IP AddressingHow do you obtain a registered IP Address? SAFETY INFORMATION Important Safety Information Important Safety Information 62 APPENDIX A SAFETY INFORMATION L’information de Sécurité Importante AVERTISSEMENT France et Pérou uniquement 3CGBIC91 GBIC SX 3CGBIC92 GBIC LX 3CGBIC97 GBIC LH70 Wichtige Sicherheitsinformationen VORSICHT EuropeWichtige Sicherheitsinformationen 68 APPENDIX A SAFETY INFORMATION B PIN-OUTS PC-AT Serial CableModem Cable RJ-45 PinAssignments Pin assignments are identical for 10/100BASE-T and 1000BASE-T RJ-45Table 11 Pin assignments Pin Number10/100BASE-T 1000BASE-T72 APPENDIX B PIN-OUTS TECHNICAL SPECIFICATIONS Switch 4900 SX Height 65.8 mm 2.59 in. x Width 440 mm 17.3 in413 mm 16.27 in. not including bulge. Weight 6.4 Kg 14.10 lbs 413 mm 16.27 in. not including bulge. Weight 6.91 Kg 15.23 lbsPower Supply Protocols Used for AdministrationHeat Dissipation Standards SupportedServices ServicesOnline Technical World Wide Web SiteUsername anonymous Asia, Pacific Rim Europe, Middle East and AfricaLatin America aprtechnicalsupport@3com.comCountry Telephone NumberCountry Telephone NumberReturning Products for Repair Country Telephone NumberCountry Telephone NumberINDEX NumbersPage How to Identify and Resolve Radio-TV Interference Problems REGULATORY NOTICESFCC STATEMENT INFORMATION TO THE USER