3Com 5108M-TP manual Channel Check Codes, LED State Channel Configuration

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assigned. The channel check sequence repeats five times. Table 1-6 explains the channel check codes.

Table 1-6. Channel Check Codes

 

LED State

Channel Configuration

 

 

 

1

Blink

Module is configured for channel 1

 

 

 

2

Blinks

Module is configured for channel 2

 

 

 

3

Blinks

Module is configured for channel 3

 

 

Off

Isolated (module operates independent of any

 

 

channel)

 

 

 

The LED/Channel Check button and the Controller Module are explained in more detail in the ONline Controller Module Installation Guide.

The ONline Ethernet Network Management Module

The ONline Network Management Module provides remote network management capabilities for the ONline System Concentrator and its modules. The Management Module can also remotely override the following dip switch settings of the 10BASE-T Module:

enable/disable each port

(SET PORT 6.5 MODE ENABLE)

enable/disable Link Integrity for each port

(SET PORT 3.2 LINK_INTEGRITY ENABLE)

set Squelch to high level or low level per port (SET PORT 5.1 SQUELCH LOW)

enable/disable crossover mode for port 8

(SET MODULE 5 CROSSOVER DISABLE)

Introduction 1 - 11

Image 27
Contents ONline Ethernet 10BASE-T Module User’s Guide Ii ONline Ethernet 10BASE-T Module User’s Guide ONline Ethernet 10BASE-T Module User’s Guide Iv ONline Ethernet 10BASE-T Module User’s Guide Contents Installing and Operating the Module Figures Viii ONline Ethernet 10BASE-T Module User’s Guide Tables Page Audience How to Use This GuideStructure of This Guide Document Conventions Convention Indicates ExampleUsr/snm/agents Related Documents Reference Documents 3Com DocumentsPage ONline Ethernet 10BASE-T Module IntroductionIndicators BASE-T Module Faceplate and ONline System Concentrator Dip Switches Interpretation of the 10BASE-T Module LEDsLED Name Color State Indicates Dip Switch SW1 Port Status Dip Switch SW1 Settings and Interpretations Dip Switch SW3 Crossover Mode, Channel Select, SquelchSquelch Mode Switch Dip Switch SW3 Settings for Switches 1Switch Function Factory Switch Setting Default Off Crossover Mode SwitchChannel Select Switch Settings Switch Channel Selection Dip Switch SW3 Settings and Interpretations for Switches 2Related Features Dip Switch SW6 Settings and InterpretationsEnable Channel Check Codes LED State Channel ConfigurationPage Designing and ExpandingtheNetwork Basic Network Rules Understanding the General RulesRule Definition Recommendations/Notes Seven Basic Network RulesCertain LAN devices Seven Basic Network Rules LAN Equivalence LAN Product Equivalent DistancesLAN Product Equivalent Distance meters Fiber Backbone, Twisted Pair To-The-Desk Fiber Backbone, Twisted Pair To-The-Desk Example Sample Configuration Distance Calculation Maximum Link Distance on Twisted Pair Unshielded Twisted Pair High Squelch Low SquelchShielded Twisted Pair High Squelch Low Squelch IBM Type Unshielded Twisted Pair Network Twisted Pair Backbone, Twisted Pair To-The-DeskRedundant Links Redundant Twisted Pair ConfigurationPage Patch Panels Precautionary Procedures Installing and Operating the ModuleInstallation Procedures Unpacking ProceduresInstalling a 10BASE-T Module BASE-T Module Cable Connection Troubleshooting TroubleshootingTroubleshooting With the Port Status LEDs Troubleshooting With the Status LEDsTroubleshooting With the Port Status LEDs Troubleshooting With the Port Status LEDs LED Name Troubleshooting With the Activity LEDsTroubleshooting With the Port Activity LEDs Possible Problem Troubleshooting State SolutionsTechnical Assistance Electrical Specifications ONline Ethernet 10BASE-T Module SpecificationsEnvironmental Specifications Mechanical SpecificationsGeneral Specifications Twisted Pair Connectors Twisted Pair Connectors and CablesTwisted Pair Cables Figure A-1. RJ45 Connector Pin-outsConnecting Twisted Pair Cables Page On-line Technical Support Technical SupportSupport from Your Network Supplier Email Technical SupportWorld Wide Web Site Support from 3Com Returning Products for Repair Accessing the 3Com MIB3Com Technical Publications Page Index MIB, B-4