3Com 2000 TR manual TR-in-FE Cable Speciﬁcation

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TR-in-FE Cable Speciﬁcation

C-3

The same cable would have a 500 MHz of bandwidth at 1 km (0.625 miles).

A ﬁber cable with a bandwidth speciﬁcation of 200 MHz.km would have only 100 MHz of bandwidth at 2 km (1.25 miles), which would not support TR-in-FE. In this case, another type of ﬁber which has a band- width of 155 MHz would be required.

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Contents For SuperStack II Switch 2000 TR For civilian agencies For units of the Department of DefenseAbout this Guide 3COM Corporation Limited Warranty Introduction About this GuideTerminology Conventions Finding Information in this GuideOverview About the SuperStack II Switch 2000 TR TR-in-FE ModuleTR-in-FE Beneﬁts Hardware Summary of TR-in-FE Module FeaturesSoftware 4CHAPTER 1 Overview TR-IN-FE Concepts What is Token Ring-in-Fast Ethernet TR-in-FE?3Com Token Ring-in-Fast Ethernet System TR-in-FE Compared to Traditional MethodsToken Ring-in-Fast Ethernet Module How TR-in-FE Works How TR-in-FE WorksPower IIRedundant SuperStack Requirements TunnelingToken Ring Frames 4Token Ring-in-Fast Ethernet Frame Virtual LANs Vlans What is a VlanAdvantages of Vlan Port-Based Distribution8CHAPTER 2 TR-IN-FE Concepts Following Safety Information Installing and Setting UP the ModulePre-installation Procedure Installation LED Summary Post-Installation ChecksChecking the Power Supply Checking the Physical Connections Checking that the TR-in-FE Module is Installed Correctly2TR-in-FE Module Jumper Settings Jumper SettingsVT100 Console Accessing Management FeaturesChoice Field Entry FieldList Boxes ButtonKey Board Shortcuts Correcting Text EntriesDefault Name Password Access Level Default UsersConsole Menu Map 1VT100 Console Menu Map with I/O Module Detail LCD Console Switch 2000 TR bannerLogging On User Name Default Access Level PasswordAutomatic Logout Logging Off8CHAPTER 4 Accessing Management Features TR-in-FE Module Conﬁguration Map Configuring the TR-IN-FE Module2I/O Module Screen Config Setting Up a ModuleSpanning Tree Bridge ParametersSource Routing TR Vlan Info Setup Screen Setting Up a VlanTR Vlan Setup Screen Scroll the Vlan list using the Up and Down keys TR-in-FE Module Statistics Map Monitoring the TR-IN-FE Module2TR Port Statistics Screen Statistics Overview3Sample TR Port Statistics Trafﬁc Screen Port Statistics TrafﬁcJam Counts Clearing Screen Counters’information de Sécurité Importante Important Safety InformationWichtige Sicherheitsinformationen Screen Access level required Screen Access Rights2APPENDIX B Screen Access Rights Environmental Speciﬁcations TR-IN-FE Module Technical SpecificationsTR-in-FE Cable Speciﬁcation Example Does the Cable Provide Sufﬁcient Bandwidth?Core mm Cladding mm Numerical Aperture TR-in-FE Cable Speciﬁcation 4APPENDIX C TR-IN-FE Module Technical Specifications 3Com Bulletin Board Service Online Technical ServicesTechnical Support World Wide Web SiteSupport from Your Network Supplier 3ComFacts Automated Fax Service3ComForum on CompuServe Country Telephone NumberReturning Products for Repair Support from 3ComCountry Telephone Number Fax Number 4APPENDIX D Technical Support Numbers Page Hardware 3Com Corporation Limited WarrantyGoverning LAW