3Com 9400 manual Online Technical Services, World Wide Web Site, 3Com Knowledgebase Web Services

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D

TECHNICAL SUPPORT

3Com provides easy access to technical support information through a variety of services. This appendix describes these services.

Information contained in this appendix is correct at time of publication. For the most recent information, 3Com recommends that you access the 3Com Corporation World Wide Web site.

Online Technical Services

3Com offers worldwide product support 24 hours a day, 7 days a week, through the following online systems:

■World Wide Web site

■3Com Knowledgebase Web Services

■3Com FTP site

■3Com Bulletin Board Service (3Com BBS)

■3Com FactsSM Automated Fax Service

World Wide Web Site

To access the latest networking information on the 3Com Corporation World Wide Web site enter this URL into your Internet browser:

http://www.3com.com/

This service provides access to online support information such as technical documentation and software library, as well as support options that range from technical education to maintenance and professional services.

3Com Knowledgebase Web Services

This interactive tool contains technical product information compiled by 3Com expert technical engineers around the globe. Located on the World

Wide Web at http://knowledgebase.3com.com, this service gives all 3Com customers and partners complementary, round-the-clock access to technical information on most 3Com products.

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Contents CoreBuilder Japan Vcci Class a Compliance United States Government LegendsAustralian EMC Frameworks Compliance Page Contents System Specifications For information on IntroductionFinding Specific Information in This Guide For information on Turn to ConventionsIcon Type Description Convention DescriptionPaper Documents CoreBuilder 9400 DocumentationSoftware and Documents on CD-ROM Documentation CommentsYear 2000 Compliance System Features and Benefits CoreBuilder 9400 Intelligent SwitchSystem Management Network Configuration ExampleSpeeding Up Server Access 10BASE-TX System Overview Front PanelBack Panel of the CoreBuilder 9400 System System Overview Back PanelSystem Overview Sample Application SuperStackII SwitchSystem and Setup Overview Qty To use Installing the System on a Table TopBefore You Begin Installing System Mounting Brackets Installing the System in a Distribution RackOverview of Cabling Fiber Safety PrecautionsGuidelines for Gigabit Ethernet Cabling Cabling Gigabit Ethernet PortsCabling Gigabit Ethernet Ports Cabling 1000BASE-SX PortsCabling 1000BASE Gbic Ports System is powered on and runningSC connector cover Connecting the LX Transceiver to MMF When you cable Gbic transceivers, note that the SC Cabling the Console Port Console Port Pin Assignments Pin No Signal DescriptionCabling the Out-of-Band Management Port Male RJ-45 connector 10BASE-T cable Power Up System Power UPGigabit Ethernet Port Diagnostics Power-up DiagnosticsSystem Diagnostics System Checks Next Step Software ConfigurationCheck Description SystemSystem Power UP About CoreBuilder 9400 System Management Access Allows you to Using MechanismIP Management Interface Terminal ConnectionModem Connection Changing the Console Port Baud Setting Initial Management AccessOut-of-band Management Configuring the IP InterfaceIn-band Management Power Failures Diagnosing ProblemsGetting Additional Help Abnormal LED ActivitySymptom Possible Sources of the Problem Steps to Take LED Status Possible Sources of the Problem Steps to Take Diagnosing ProblemsCleaning Dirty Fiber Optic Ports and Connectors Safety Agency Certifications Specifications Physical DimensionsPower Supply Environmental RequirementsStandard Type RFC/IEEE Supported Software Tftp RFC InstallationSnmp protocol RFC MIB II RFCPower Supply Assembly Removal and Replacement Safety PrecautionsRemoving and Replacing the Power Supply AudienceRemoving and Replacing the Power Supplies Fan Tray Assembly Removal and Replacement Fan Tray Assembly Removal and ReplacementAppendix B FIELD-REPLACEABLE Units Wiring Closet Recommendations General Safety RequirementsSpace Requirements for the Rack Distribution Rack RequirementsProtective Grounding for the Rack Mechanical Requirements for the Rack Recommended Service AccessBuilding Codes Building and Electrical CodesElectrical Codes NfpaAppendix C Site Requirements and Safety Codes World Wide Web Site Online Technical Services3Com Knowledgebase Web Services 3Com Facts Automated Fax Service 3Com Bulletin Board Service3Com FTP Site Country Data Rate Telephone NumberSupport from 3Com Support from Your Network SupplierCountry Country Telephone Number Asia Pacific RimEurope Latin AmericaCountry Telephone Number Fax Number Returning Products for RepairAppendix D Technical Support Numbers IndexIndex Recommendations World Wide Web WWW 50, 51 Index CoreBuilder 9400 High-Availability Switch 3Com Corporation Limited WarrantyWarranties Exclusive