Support from 3Com | 3Com 5104M-FB1, 5102M-FBP, 510M-FBP specification

When you contact your network supplier for assistance, have the following information ready:

❑Diagnostic error messages

❑A list of system hardware and software, including revision levels

❑Details about recent configuration changes, if applicable

If you are unable to contact your network supplier, see the following section on how to contact 3Com.

Support from 3Com

If you are unable to receive support from your network supplier, technical support contracts are available from 3Com.

For direct access to customer service for Integrated Systems Division products in:

❑U.S.A. and Canada - call (800) 724-2447

❑Asia Pacific - call (508) 787-5151

❑Europe - refer to the table below. For European countries not listed, call 31 30 60 299 00.

Country	Telephone Number

Belgium	0800 71429
Denmark	800 17309
Finland	0800 113153
France	05 917959
Germany	0130 821502
Ireland	1 800 553117
Italy	1678 79489

Country	Telephone Number

Netherlands	06 0227788
Norway	800 11376
Spain	900 983125
Sweden	020 795482
U.K.	0800 966197
U.S.	800 876-3266

Technical Support B - 3

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3Com 5104M-FB1, 5102M-FBP, 510M-FBP installation and operation guide Support from 3Com

Contents

Page VDE Class B Compliance Restricted Rights Page Contents Installing and Operating the Module Appendix a Specifications Page Figures Page Tables Page Audience How to Use This Guide Structure of This Guide Convention Indicates Example Document ConventionsUsr/snm/agents 3Com Documents Related Documents Reference Documents Slot ONline System Concentrator Installation and OperationPage Introduction 10BASE-FB Module Descriptions Introduction 1 Theory of Operation 10BASE-FB Compliance BASE-FB Module Connections BASE-FB Module Compatibility Compatibility With Other Ethernet Fiber Products3Com Product Part Number Designing and Expanding the Network Understanding the General Rules Rules for Configuring a NetworkBasic Network Rules Rule Definition Recommendations/Notes Definition Recommendations/Notes Is actually equal to 1.1 meters Equivalent Fiber Distances of LAN Products Equivalent Fiber DistancesLAN Product Equivalent Fiber Determining Maximum Fiber Link Distances Determining Link Budget Calculating Maximum Link Distance Power ONline 10BASE-FB Module Optical Power Budget Normal PowerLink Link Loss DBm BASE-FB Optical Power Budget ONline 10BASE-FB Module Optical Power Budget High PowerCable Size Used Transmit Receive Optical Power Micron ONline to Attenuation Typical Fiber Loss Characteristics Connector and Splice Insertion Loss Meter Fiber Link With Mechanical Splice Example 1700 Meter Fiber Link With Mechanical Splice Meter Fiber Link Through Two Patch Panels Example 2000 Meter Fiber Link Through Two Patch Panels Choosing a Network Backbone Cabling Structure Star-Wiring Configuration Star Configuration Serial Configuration Using 10BASE-FB Modules Serial Configuration Fiber Backbone, Fiber-to-the-Desk 10BASE-FB Module Configurations All-Fiber Network Network With 3 Concentrators Example Network With 3 Concentrators Example Network with 8 Concentrators Network Configured With 8 Concentrators Fiber Equivalent Distances Between Transceivers Fiber Backbone, Unshielded Twisted Pair to-the-Desk Example Sample Configuration Distance Calculation Sample Configuration Distance Calculation Fiber Backbone, Coaxial Connection Example Connecting a Thin Ethernet 10BASE2 Segment Designing and Expanding the Network 2 Configuring Ports for Fault Tolerance Fault-Tolerant ConfigurationsStandard Redundant Configuration In this configuration Setting Redundancy 10. Redundant Fiber Backbone Configuration Implementing Total Backbone Fault Tolerance 11. Total Backbone Fault-Tolerant Configuration 12. Fiber Network With 3 Concentrators Page Installing and Operating the Module Precautionary Procedures Unpacking Procedures Quick Installation Procedures Quick InstallationStep Procedure Section Title Setting the Dip Switches BASE-FB Module Dip Switch Locations Dip Switch S1 Settings for Switches 1 Setting Dip Switch S1Switch Label Function Factory Switch Setting Default Off Port-Switching Module Port Dip Switch S1 Settings for Switches 3 toModule-Switching Module Channel Selection Dip Switch S2 Settings Setting Dip Switch S2Switch Label Function Factory Switch Setting Default Enable/disable Disable Module Low Light Detection Not Used Installing the Module Installing the 10BASE-FB Module BASE-FB Module Connection Configuring the Module Enabling Ports Selecting a Network Enabling Port Redundancy You can enable port redundancy in one of the following ways Enabling Low Light Warning Enabling Optical Power Saving Module Configuration Showing Module Configuration Monitoring the Front Panel Page LED Name Color State Indicates Interpreting the 10BASE-FB Module LEDs Verifying LED and Network Assignments LED State Network ConfigurationNetwork Check Codes Troubleshooting Troubleshooting Using the Port Activity LEDs Troubleshooting Using the Port Activity LEDsPossible Cause Corrective Action Troubleshooting Using the Port Status LEDs Troubleshooting Using the Port Status LEDsLED State Indication Possible Cause Corrective Action Troubleshooting Using the Port Status LEDs Troubleshooting Using the Port Status LEDs 10BASE-FL Technical Assistance Page Specifications Table A-1. General Specifications General Specifications Transmitter Specifications Optical SpecificationsTable A-2. Transmit Power Cable Type Normal Power High Power Table A-3. Receiver Specifications Receiver SpecificationsSupported Fiber Optic Cables Table A-4. Fiber Optic Interface Specifications Power RequirementsTable A-5. Power Requirements Fiber Optic Interface Mechanical Specifications Environmental SpecificationsTable A-6. Electrical Specifications Table A-7. Mechanical Specifications 10BASE-FB Cables 10BASE-FB Cable and Connector Specifications Port-Switching Connector Type 10BASE-FB ConnectorsTable A-8 BASE-FB Module Part Numbers On-line Technical Support Technical Support Email Technical Support Support from Your Network SupplierWorld Wide Web Site Support from 3Com Returning Products for Repair Accessing the 3Com MIB 3Com Technical Publications Page Index Installing Link Budget Redundant Link, 3-16Redundancy LED Unpacking Procedures, 3-3Unshielded Twisted Pair Cable