Fiber Backbone, Twisted Pair To-The-Desk | 3Com 5112M-TPLS guide

Table 2-2. LAN Product Equivalent Distances (Continued)

	LAN Product	Equivalent Fiber
	LAN Product	Distance (meters)
		Distance (meters)

	ONline Ethernet 24-Port Module (5124M-TPCL)	585

	Incoming signal to TP port	420

	Outgoing signal from TP port	165

	ONline Ethernet Repeater Module (5102M-AUIF)	800

	Incoming signal to AUI port	600

	Outgoing signal from AUI port	200

	ONline Ethernet BNC Module (5106M-BNC)	900

	Incoming signal to BNC port	450

	Outgoing signal from BNC port	450

	ONline Ethernet Transceiver Module	0
	(5103M-AUIM)

	3Com 10BASE-FB Star Coupler (9308S-FB)	180

	ORnet Star Coupler (9314S)	180

	IEEE Repeater	800

Fiber Backbone, Twisted Pair To-The-Desk

When you configure a network with unshielded twisted pair cabling to-the-desk and fiber for the backbone, be aware of the following:

Designing and Expanding the Network 2 - 7

Image 29

3Com 5112M-TPLS installation and operation guide Fiber Backbone, Twisted Pair To-The-Desk

Contents

Page VDE Class B Compliance Restricted Rights Page Contents Installing and Operating the Module Troubleshooting Appendix B Technical Support Figures Page Tables Page Audience How to Use This Guide Structure of This Guide Usr/snm/agents Document ConventionsConvention Indicates Example Related Documents Reference Documents 3Com DocumentsPage ONline 10BASE-T Security Module Introduction Application Theory of Operation ONline 10BASE-T Security Module Application ONline ManagementPage Designing and Expanding the Network Basic Network Rules Understanding the General Rules Rule Definition Recommendations/Notes Seven Basic Network Rules Certain LAN devices Seven Basic Network Rules LAN Product Equivalent Fiber LAN EquivalenceLAN Product Equivalent Distances Fiber Backbone, Twisted Pair To-The-Desk Fiber Backbone, Twisted Pair To-The-Desk Example Sample Configuration Distance Calculation Cable Gauge Supports Link Distances Up To Twisted Pair Backbone, Twisted Pair To-The-DeskMaximum Link Distance on Twisted Pair Unshielded Twisted Pair Network Patch Panels Redundant Links Redundant Twisted Pair Configuration Designing and Expanding the Network 2 Page Installing and Operating the Module Quick Installation Chart Precautionary ProceduresProcedures for Completing Installation Step Procedure Reference Installing the Module Unpacking Procedures Security Module Dip Switch SW1 Location Setting the Dip Switch Switch Network Selection Switch Settings DIP Switch SW1 Network Selection Settings Off On DIP Switch SW1 Security and Link Integrity SettingsSwitch Function Factory Setting Installing the Cable Tie-Wrap Kit Installing the Module Attaching the Tie-Wrap Bracket to the Module Attaching Cables With 90 Connectors Installing an ONline 10BASE-T Security Module Installing the Module ONline 10BASE-T Security Module Cable Connection Configuring the Module Port Redundancy Port EnableNetwork Assignment Module Security Link Integrity Autopartition Threshold Saving Module ConfigurationsReverting Module Configurations Show Module Show Module Verbose Show Port Show Port Verbose Showing Module Configurations Monitoring the Front Panel Security Module Faceplate Color State Indicates Name Interpretation of the Security Module LEDs Network Check Codes LED State Network ConfigurationLED and Network Verification Page Configuring Security Features Procedure Command Quick Reference for Configuring SecurityQuick Reference for Configuring the Security Module SET Security Autolearn Eavesdropping Security Configuring Security Features Example of Eavesdropping Security Intrusion Detection Example of Intrusion Detection Defining Port Security Type Defining Port Action on Intrusion Enabling Ports Configuring Autolearning Mask Configuring Autolearning Autolearn capture done learned 0 addresses total Defining a MAC Address Manually Downloading the Autolearning Database Configuring Security Mode Reverting Security Configurations Showing Security ConfigurationsSaving Security Configurations Showing Port Configurations Eavesdrop None ETHERNET1 Showing Security Autolearn Showing Security Intruder List Clearing the MAC Address Table Clearing Security Configurations Clearing the Security Intruder List Clearing the Autolearning Database EMM Security Snmp Variables Using 3Com MIB Security Variables Using the Security Module Snmp Variables Configuring Security Features 4 Page Troubleshooting Troubleshooting Troubleshooting Using the Port Status LEDs Troubleshooting Using the Status LEDs Troubleshooting Using the Port Status LEDs LED State Possible Problem Troubleshooting Solutions Troubleshooting Using the Activity LEDsTroubleshooting Using the Activity LEDs Technical Assistance Page Electrical Specifications Specifications General Specifications Environmental SpecificationsMechanical Specifications Pin Connector and Cable Figure A-1 -Pin Cable Male and Female Connectors Hub Trans Ceiver Table A-1 -Pin Cable Pinouts and Port AssignmentsPort # Function Polarity Hub Trans Twisted Pair Connectors and CablesHub Port # Figure A-2. RJ-45 Connector Pinouts Twisted Pair Connectors Twisted Pair Cables On-line Technical Support Technical Support World Wide Web Site Support from Your Network SupplierEmail Technical Support Support from 3Com Returning Products for Repair Accessing the 3Com MIB 3Com Technical Publications Page Index Activity LEDs, 3-18,3-20 Quick Reference Chart Security Type Default Setting Index