3Com
510M-FBP, 5102M-FBP, 5104M-FB1
installation and operation guide
Troubleshooting
Specifications
Install
Star Configuration
Accessing the 3Com MIB
10BASE-FB Connectors
Precautionary Procedures
Setting Redundancy
How to
Power
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Contents
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VDE Class B Compliance
Restricted Rights
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Contents
Installing and Operating the Module
Appendix a Specifications
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Figures
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Tables
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How to Use This Guide
Audience
Structure of This Guide
Usr/snm/agents
Document Conventions
Convention Indicates Example
Related Documents
3Com Documents
Slot ONline System Concentrator Installation and Operation
Reference Documents
Page
Introduction
10BASE-FB Module Descriptions
Introduction 1
10BASE-FB Compliance
Theory of Operation
BASE-FB Module Connections
3Com Product Part Number
Compatibility With Other Ethernet Fiber Products
BASE-FB Module Compatibility
Designing and Expanding the Network
Rules for Configuring a Network
Understanding the General Rules
Basic Network Rules
Rule Definition Recommendations/Notes
Definition Recommendations/Notes
Is actually equal to 1.1 meters
LAN Product Equivalent Fiber
Equivalent Fiber Distances
Equivalent Fiber Distances of LAN Products
Determining Maximum Fiber Link Distances
Calculating Maximum Link Distance
Determining Link Budget
ONline 10BASE-FB Module Optical Power Budget Normal Power
Power
Link Link Loss
DBm
ONline 10BASE-FB Module Optical Power Budget High Power
BASE-FB Optical Power Budget
Cable Size Used Transmit Receive Optical Power Micron
ONline to
Attenuation
Connector and Splice Insertion Loss
Typical Fiber Loss Characteristics
Example 1700 Meter Fiber Link With Mechanical Splice
Meter Fiber Link With Mechanical Splice
Example 2000 Meter Fiber Link Through Two Patch Panels
Meter Fiber Link Through Two Patch Panels
Choosing a Network Backbone Cabling Structure
Star Configuration
Star-Wiring Configuration
Serial Configuration
Serial Configuration Using 10BASE-FB Modules
10BASE-FB Module Configurations
Fiber Backbone, Fiber-to-the-Desk
All-Fiber Network
Example Network With 3 Concentrators
Network With 3 Concentrators
Network Configured With 8 Concentrators
Example Network with 8 Concentrators
Fiber Equivalent Distances Between Transceivers
Example Sample Configuration Distance Calculation
Fiber Backbone, Unshielded Twisted Pair to-the-Desk
Sample Configuration Distance Calculation
Example Connecting a Thin Ethernet 10BASE2 Segment
Fiber Backbone, Coaxial Connection
Designing and Expanding the Network 2
Standard Redundant Configuration In this configuration
Fault-Tolerant Configurations
Configuring Ports for Fault Tolerance
Setting Redundancy
10. Redundant Fiber Backbone Configuration
Implementing Total Backbone Fault Tolerance
11. Total Backbone Fault-Tolerant Configuration
12. Fiber Network With 3 Concentrators
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Installing and Operating the Module
Precautionary Procedures
Unpacking Procedures
Step Procedure Section Title
Quick Installation
Quick Installation Procedures
Setting the Dip Switches
BASE-FB Module Dip Switch Locations
Switch Label Function Factory Switch Setting Default Off
Setting Dip Switch S1
Dip Switch S1 Settings for Switches 1
Dip Switch S1 Settings for Switches 3 to
Port-Switching Module Port
Module-Switching Module
Channel Selection
Switch Label Function Factory Switch Setting Default
Setting Dip Switch S2
Dip Switch S2 Settings
Installing the Module
Enable/disable Disable Module Low Light Detection Not Used
Installing 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 Redundancy
Enabling Optical Power
Enabling Low Light Warning
Showing Module Configuration
Saving Module Configuration
Monitoring the Front Panel
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Interpreting the 10BASE-FB Module LEDs
LED Name Color State Indicates
Network Check Codes
LED State Network Configuration
Verifying LED and Network Assignments
Troubleshooting
Possible Cause Corrective Action
Troubleshooting Using the Port Activity LEDs
Troubleshooting Using the Port Activity LEDs
LED State Indication Possible Cause Corrective Action
Troubleshooting Using the Port Status LEDs
Troubleshooting Using the Port Status LEDs
Troubleshooting Using the Port Status LEDs
Troubleshooting Using the Port Status LEDs
10BASE-FL
Technical Assistance
Page
Specifications
General Specifications
Table A-1. General Specifications
Optical Specifications
Transmitter Specifications
Table A-2. Transmit Power
Cable Type Normal Power High Power
Supported Fiber Optic Cables
Receiver Specifications
Table A-3. Receiver Specifications
Power Requirements
Table A-4. Fiber Optic Interface Specifications
Table A-5. Power Requirements
Fiber Optic Interface
Environmental Specifications
Mechanical Specifications
Table A-6. Electrical Specifications
Table A-7. Mechanical Specifications
10BASE-FB Cable and Connector Specifications
10BASE-FB Cables
Table A-8 BASE-FB Module Part Numbers
10BASE-FB Connectors
Port-Switching Connector Type
Technical Support
On-line Technical Support
World Wide Web Site
Support from Your Network Supplier
Email Technical Support
Support from 3Com
Accessing the 3Com MIB
Returning Products for Repair
3Com Technical Publications
Page
Index
Installing Link Budget
Redundant Link, 3-16Redundancy LED
Unpacking Procedures, 3-3Unshielded Twisted Pair Cable
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