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3Com
5104M-FB1, 5102M-FBP, 510M-FBP
installation and operation guide
Models:
5102M-FBP
510M-FBP
5104M-FB1
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Troubleshooting
Specs
Install
Star Configuration
Precautionary Procedures
Setting Redundancy
How to
Power
Accessing the 3Com MIB
10BASE-FB Connectors
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Image 100
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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
Audience
Structure of This Guide
Convention Indicates Example
Document Conventions
Usr/snm/agents
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
BASE-FB Module Compatibility
Compatibility With Other Ethernet Fiber Products
3Com Product Part Number
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
Equivalent Fiber Distances of LAN Products
Equivalent Fiber Distances
LAN Product Equivalent Fiber
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
Configuring Ports for Fault Tolerance
Fault-Tolerant Configurations
Standard 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 Installation
Step Procedure Section Title
Setting the Dip Switches
BASE-FB Module Dip Switch Locations
Dip Switch S1 Settings for Switches 1
Setting Dip Switch S1
Switch Label Function Factory Switch Setting Default Off
Dip Switch S1 Settings for Switches 3 to
Port-Switching Module Port
Module-Switching Module
Channel Selection
Dip Switch S2 Settings
Setting Dip Switch S2
Switch Label Function Factory Switch Setting Default
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
Page
Interpreting the 10BASE-FB Module LEDs
LED Name Color State Indicates
Verifying LED and Network Assignments
LED State Network Configuration
Network Check Codes
Troubleshooting
Troubleshooting Using the Port Activity LEDs
Troubleshooting Using the Port Activity LEDs
Possible Cause Corrective Action
Troubleshooting Using the Port Status LEDs
Troubleshooting Using the Port Status LEDs
LED 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 Specifications
Optical Specifications
Transmitter Specifications
Table A-2. Transmit Power
Cable Type Normal Power High Power
Table A-3. Receiver Specifications
Receiver Specifications
Supported Fiber Optic Cables
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
Port-Switching Connector Type
10BASE-FB Connectors
Table A-8 BASE-FB Module Part Numbers
Technical Support
On-line Technical Support
Email Technical Support
Support from Your Network Supplier
World Wide Web Site
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