3Com 5104M-FL1 Returning Products for Repair, Accessing the 3Com MIB

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For access to customer service for all 3Com products, call (800) 876-3266.

You can also contact the Integrated Systems Division (ISD) on the Internet by using the e-mail address techsupp@chipcom.com.

Returning Products for Repair

A product sent directly to 3Com for repair must first be assigned a Return Materials Authorization (RMA) number. A product sent to 3Com without an RMA number will be returned to the sender unopened, at the sender’s expense.

To obtain an RMA number for Integrated Systems Division products (formerly Chipcom), use the following numbers.

Country	Telephone Number	Fax Number

U.S. and Canada	(800) 724-2447	(508) 787-3400
Europe	(44) (1442) 275860	No Fax
Asia Pacific	(508) 787-5296	(508) 787-3400

Accessing the 3Com MIB

The 3Com Management Information Base (MIB) for the Integrated Systems Division describes commands that enable you to manage 3Com SNMP-based products. The MIB is available over the Internet on an anonymous FTP server. Updates to these MIBs are released as new 3Com products are introduced.

To access Internet versions:

1.FTP to ftp.chipcom.com (151.104.9.65).

2.Enter the login name anonymous.

B - 4 Online Ethernet 10BASE-FL Installation and Operation Guide

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Contents Page Vcci Class 1 Compliance Page Page Contents Installing and Operating the Module Appendix a Specifications Page Figures Page Tables Page How to Use This Guide AudienceStructure of This Guide Text Conventions Document ConventionsText Convention Example Related Documents 3Com DocumentsReference Documents Page Introduction 10BASE-FL Module Description BASE-F Standards 10BASE-FL and Foirl Ieee Standards ComparisonTheory of Operation 10BASE-F Standard DescriptionBASE-FL Module Connections Designing and ExpandingtheNetwork Seven Basic Network Rules Understanding the General RulesBasic Network Rules Rule Definition Recommendations/NotesAs equivalent distance. Every Assume that one LAN Product Equivalent Distances LAN EquivalenceLAN Product Equivalent Determining Maximum 10BASE-FL Link Distances Calculating Maximum Link DistanceDetermining Link Budget DBm BASE-FL Module Optical Power BudgetCable Size Transmit Receive Optical Link Loss Power ONline toSplicing Typical Fiber Loss Characteristics Connector and Splice Insertion LossConnector Type Range of Loss Per Typical Loss dB Pair dB Splice Type Range of Loss dB Typical Loss dBExample Fiber Link With Mechanical Splice Meter Fiber Link With Mechanical SpliceExample Fiber Link Through Patch Panels Meter Fiber Link Through Two Patch PanelsStar Configuration Choosing a Network Backbone Cabling StructureSerial Configuration Star-Wiring Configuration10BASE-FL Module Configurations Serial Configuration Using 10BASE-FL Modules10BASE-FL Backbone, 10BASE-FL to-the-Desk All-10BASE-FL Network with 3 Concentrators Example a Network with 3 Concentrators Example a Network with 6 ConcentratorsNetwork with 6 Concentrators Total Fiber Number Equivalent 10BASE-FL Backbone, Unshielded Twisted Pair to-the-DeskFiber Equivalent Distances Between Transceivers PathExample Sample Configuration Distance Calculation Sample Configuration Distance Calculation 10BASE-FB Fiber Backbone, 10BASE-FL to-the-Desk Sample Fiber Backbone, 10BASE-FL to-the-Desk Configuration Example Fiber Backbone, 10BASE-FL to-the-DeskConnecting External Network Devices Example Connecting a Thin Ethernet 10BASE2 Segment IeeeDesigning and Expanding the Network 2 Configuring Ports for Fault Tolerance Fault-Tolerant ConfigurationsStandard Redundant Configuration In this configuration Implementing Backbone Cable Plant Fault Tolerance Setting Redundancy10. Redundant Fiber Backbone Configuration Remote Failure Signaling Implementing Total Backbone Fault Tolerance 11. Total Backbone Fault-Tolerant Configuration12. Network With 3 Concentrators ONline Ethernet 10BASE-FL Installation and Operation Guide Installing and Operating the Module Precautionary Procedures Unpacking ProceduresQuick Installation Procedures Quick InstallationStep Procedure Section Title Setting the Dip Switches Setting Dip Switch SW1 BASE-FL Module Dip Switch LocationsFactory Switch Setting Dip Switch SW1 SettingsFunction Off Default Dip Switch SW2 Settings for Switches 1 to Setting Dip Switch SW2Switch Function Factory Default Switch Settings Installing the ModuleDip Switch SW2 Settings for Switches 5 Channel SelectionInstalling the 10BASE-FL Module BASE-FL Module Connection Configuring the Module Enabling Ports Selecting a Network Enabling Port RedundancySET Port slot.port Mode Redundant slot.port Enabling Remote Failure Signaling BASE-FL Modules Connected with Redundancy/RFS EnabledShowing Module Configuration Saving Module ConfigurationShows the location of these indicators Monitoring the Front PanelBASE-FL Module Faceplate and ONline System Concentrator Interpreting the 10BASE-FL Module LEDs LED Name Color State IndicatesVerifying the LED and Network Assignments LED State Module Is Configured forNetwork Check Codes Troubleshooting LED Name Troubleshooting Using the Port Activity LEDsTroubleshooting Using the Port Activity LEDs Possible Cause Corrective Action StateTroubleshooting Using the Port Status LEDs Troubleshooting Using the Port Status LEDsLED State Indication Possible Cause Corrective Action Replace remote device RFS Troubleshooting Technical AssistanceONline Ethernet 10BASE-FL Installation and Operation Guide Specifications General Specifications Table A-1. General SpecificationsTransmitter Specifications Optical SpecificationsTable A-2. Transmit Power Peak Values Table A-3. Receiver Specifications 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-FL Cable and Connector Specifications Fiber Cables and ConnectorsTable A-8. Connector Type Part Number Connector Type Part NumberTechnical Support On-line Technical SupportEmail Technical Support Support from Your Network SupplierWorld Wide Web Site Support from 3Com Accessing the 3Com MIB Returning Products for Repair3Com Technical Publications Page Index Index RFS VDE compliance Verify LED Operation, 3-19Network Assignment