3Com 5102M-FBP, 5104M-FB1, 510M-FBP installation and operation guide Installing Link Budget

Page 102

Optical Power, 3-9

Port Enable/Disable, 3-9

Redundancy Enable/Disable, 3-7

Disable Redundancy, 3-16

Distance Limitations, 2-5

E

Electrostatic Discharge (ESD), 3-2Enable Redundancy, 3-16Enable/Disable Ports, 3-14Equivalent Fiber Distance, 2-5Ethernet 10BASE-FB Module

Front Panel LEDs, 3-19Ethernet Distance Limitations, 2-2Ethernet Management Module, 3-13

F

Fault-Tolerant 10BASE-FB Transceiver, 1-2FCC notice, ii

FDDI Management Module, 3-13Features

Hot Swap Capability, 1-3

Slot Independence, 1-3Standard Compliance, 1-3

Fiber Cables, A-7

Connector and Splice Loss, 2-7, 2-11 Connectors, A-8

Installing, 3-11

Link Budget, 2-7

Loss Characteristics, 2-11Fiber Connector Types, 1-3Fiber Equivalent Distances

Between Transceiver, 2-21Fiber Link Distances, 2-6

Fiber Module Configurations, 2-17Fiber Optic Cable

Bend Radius, 3-12Front Panel

LEDs, 3-19 Monitoring, 3-19

G

Grounding Techniques, 3-2

H

Hot Swap Capability, 1-3

I

IEEE 802.3 CSMA/CD Protocol, 2-17

Installing the Module, 3-1,3-10

Connecting Fiber Cables, 3-11

Grounding Techniques, 3-2

Precautions, 3-2

L

LEDs

Activity, 3-21

Interpreting, 3-21

Port Status, 3-21

Redundancy, 3-21

Verifying Operation, 3-22

Link Budget, 2-7

Low Light

Dip Switch Setting, 3-10

Management Command Syntax, 3-17

Warning, 2-14

Low Light Condition, 3-17

M

Management Commands SAVE MODULE_PORT, 3-18SET PORT HIGH_POWER, 3-17

SET PORT LOW_LIGHT_WARNING, 3-17SET PORT MODE, 3-14

SET PORT MODE REDUNDANT, 3-16SET PORT NETWORK, 3-15SHOW MODULE, 3-18

SHOW PORT, 3-18

MIB, B-4

2 Index

Image 102

Contents Page VDE Class B Compliance Restricted Rights Page Contents Installing and Operating the Module Appendix a Specifications Page Figures Page Tables Page How to Use This Guide AudienceStructure of This Guide Document Conventions Convention Indicates ExampleUsr/snm/agents Related Documents 3Com DocumentsSlot ONline System Concentrator Installation and Operation Reference DocumentsPage Introduction 10BASE-FB Module Descriptions Introduction 1 10BASE-FB Compliance Theory of OperationBASE-FB Module Connections Compatibility With Other Ethernet Fiber Products BASE-FB Module Compatibility3Com Product Part Number Designing and Expanding the Network Basic Network Rules Rules for Configuring a NetworkUnderstanding the General Rules Rule Definition Recommendations/NotesDefinition Recommendations/Notes Is actually equal to 1.1 meters Equivalent Fiber Distances Equivalent Fiber Distances of LAN ProductsLAN Product Equivalent Fiber Determining Maximum Fiber Link Distances Calculating Maximum Link Distance Determining Link BudgetLink Link Loss ONline 10BASE-FB Module Optical Power Budget Normal PowerPower DBmCable Size Used Transmit Receive Optical Power Micron ONline 10BASE-FB Module Optical Power Budget High PowerBASE-FB Optical Power Budget ONline toAttenuation Connector and Splice Insertion Loss Typical Fiber Loss CharacteristicsExample 1700 Meter Fiber Link With Mechanical Splice Meter Fiber Link With Mechanical SpliceExample 2000 Meter Fiber Link Through Two Patch Panels Meter Fiber Link Through Two Patch PanelsChoosing a Network Backbone Cabling Structure Star Configuration Star-Wiring ConfigurationSerial Configuration Serial Configuration Using 10BASE-FB Modules10BASE-FB Module Configurations Fiber Backbone, Fiber-to-the-DeskAll-Fiber Network Example Network With 3 Concentrators Network With 3 ConcentratorsNetwork Configured With 8 Concentrators Example Network with 8 ConcentratorsFiber Equivalent Distances Between Transceivers Example Sample Configuration Distance Calculation Fiber Backbone, Unshielded Twisted Pair to-the-DeskSample Configuration Distance Calculation Example Connecting a Thin Ethernet 10BASE2 Segment Fiber Backbone, Coaxial ConnectionDesigning and Expanding the Network 2 Fault-Tolerant Configurations Configuring Ports for Fault ToleranceStandard 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 Quick Installation ProceduresStep Procedure Section Title Setting the Dip Switches BASE-FB Module Dip Switch Locations Setting Dip Switch S1 Dip Switch S1 Settings for Switches 1Switch Label Function Factory Switch Setting Default Off Module-Switching Module Dip Switch S1 Settings for Switches 3 toPort-Switching Module Port Channel SelectionSetting Dip Switch S2 Dip Switch S2 SettingsSwitch Label Function Factory Switch Setting Default Installing the Module Enable/disable Disable Module Low Light Detection Not UsedInstalling the 10BASE-FB Module BASE-FB Module Connection Configuring the Module Enabling Ports Selecting a Network You can enable port redundancy in one of the following ways Enabling Port RedundancyEnabling Optical Power Enabling Low Light WarningShowing Module Configuration Saving Module ConfigurationMonitoring the Front Panel Page Interpreting the 10BASE-FB Module LEDs LED Name Color State IndicatesLED State Network Configuration Verifying LED and Network AssignmentsNetwork 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 General Specifications Table A-1. General SpecificationsTable A-2. Transmit Power Optical SpecificationsTransmitter Specifications Cable Type Normal Power High PowerReceiver Specifications Table A-3. Receiver SpecificationsSupported Fiber Optic Cables Table A-5. Power Requirements Power RequirementsTable A-4. Fiber Optic Interface Specifications Fiber Optic InterfaceTable A-6. Electrical Specifications Environmental SpecificationsMechanical Specifications Table A-7. Mechanical Specifications10BASE-FB Cable and Connector Specifications 10BASE-FB Cables10BASE-FB Connectors Port-Switching Connector TypeTable A-8 BASE-FB Module Part Numbers Technical Support On-line Technical SupportSupport from Your Network Supplier Email Technical SupportWorld Wide Web Site Support from 3Com Accessing the 3Com MIB Returning Products for Repair3Com Technical Publications Page Index Installing Link Budget Redundant Link, 3-16Redundancy LED Unpacking Procedures, 3-3Unshielded Twisted Pair Cable