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3Com 5108M-TP manual ONline Ethernet 10BASE-T Module User’s Guide

Models: 5108M-TP

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ONline Ethernet 10BASE-T

Module

User’s Guide

Document Number 17-00141-3

Printed March 1995

Model Number: 5108M-TP

3Com Corporation

118 Turnpike Road

Southborough, MA 01772-1886

U.S.A.

(508)460-8900

FAX (508) 460-8950

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3Com 5108M-TP manual ONline Ethernet 10BASE-T Module User’s Guide, Turnpike Road Southborough, MA U.S.A 508 FAX 508

Contents

Document Number Printed March Model Number 5108M-TP 3Com Corporation ONline Ethernet 10BASE-T Module User’s Guide118 Turnpike Road Southborough, MA U.S.A 508 FAX 508 Canadian Emissions Requirements Federal Communications Commission NoticeVDE Class B Compliance EN55022/CISPR22 ComplianceRestricted Rights ONline Ethernet 10BASE-T Module User’s Guideiv ONline Ethernet 10BASE-T Module User’s Guide How to Use This Guide ContentsChapter 1 - Introduction Chapter 2 - Designing and Expanding the NetworkChapter 4 - Troubleshooting Chapter 3 - Installing and Operating the ModuleAppendix A - Specifications Appendix B - Technical SupportFigures viii ONline Ethernet 10BASE-T Module User’s Guide Tables Page Audience How to Use This GuideStructure of This Guide Convention Document ConventionsIndicates ExampleA Caution. A Related DocumentsA Warning. A Warning Wear eyeReference Documents 3Com DocumentsPage The ONline Ethernet 10BASE-T Module 1 IntroductionIndicators Introduction 1 Figure 1-1. 10BASE-T Module Faceplate and ONline System ConcentratorLED Name Dip SwitchesColor StateFigure 1-2. 10BASE-T Module and Dip Switch Locations Dip Switch SW1 Port StatusSwitch Dip Switch SW3 Crossover Mode, Channel Select, SquelchSwitch Setting DefaultSquelch Mode Switch Crossover Mode SwitchSwitch Switch Setting1 - 8 ONline Ethernet 10BASE-T Module User’s Guide Channel Select Switch SettingsChannel Selection Dip Switch SW6 Link IntegritySwitch SwitchLED and Channel Verification Related FeaturesSwitch Switch SettingThe ONline Ethernet Network Management Module Channel ConfigurationLED State Table 1-6. Channel Check Codes1 - 12 ONline Ethernet 10BASE-T Module User’s Guide Designing and Expanding the Network 2 2 Designing and ExpandingtheNetworkBasic Network Rules Understanding the General RulesDefinition RuleRecommendations/Notes Table 2-1. Seven Basic Network RulesRule Table 2-1. Seven Basic Network Rules ContinuedDefinition Recommendations/NotesDefinition RuleRecommendations/Notes The fiber link distancesLAN Product LAN EquivalenceEquivalent Distance metersTable 2-2. LAN Product Equivalent Distances Continued Fiber Backbone, Twisted Pair To-The-DeskLAN Product EquivalentFiber Backbone, Twisted Pair To-The-Desk Example Figure 2-1. Sample Configuration Distance Calculation Supports Link Distances Up To Cable Gauge22 .6mm 150mFigure 2-2. Unshielded Twisted Pair Network Twisted Pair Backbone, Twisted Pair To-The-DeskFigure 2-3. Redundant Twisted Pair Configuration Redundant LinksTo set redundancy between two 10BASE-T Modules, connect two links between the modules. The redundant link must be connected to a port on the same 10BASE-T Module as the primary link. Use a crossover adapter between each link unless you choose to uncross port 8 on one of the modules to make the connection. Refer to Chapter 1 for information on using crossover mode. Then use the SET PORT slot.port MODE REDUNDANT slot.port command to specify which port is the primary link and which is the backup link 2 - 14 ONline Ethernet 10BASE-T Module User’s Guide Patch PanelsPrecautionary Procedures 3 Installing and Operating the ModuleInstallation Procedures Unpacking ProceduresFigure 3-1. Installing a 10BASE-T Module Figure 3-2. 10BASE-T Module Cable Connection Troubleshooting 4 TroubleshootingTroubleshooting Troubleshooting With the Status LEDsProblem IndicationProblem TroubleshootingLED State IndicationProblem TroubleshootingLED State IndicationPossible Problem Troubleshooting With the Activity LEDsSolutions TroubleshootingTechnical Assistance ONline Ethernet 10BASE-T Module Specifications A SpecificationsElectrical Specifications Mechanical Specifications Environmental SpecificationsGeneral Specifications Twisted Pair Connectors Twisted Pair Connectors and CablesFigure A-1. RJ45 Connector Pin-outs Twisted Pair CablesConnecting Twisted Pair Cables Page On-line Technical Support B Technical SupportEmail Technical Support Support from Your Network SupplierWorld Wide Web Site Support from 3Com Returning Products for Repair Accessing the 3Com MIB3Com Technical Publications Page Numerics Index