Accton Technology manual EtherHub 1500 System User’s Guide Jabber

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EtherHub 1500 System User’s Guide

Jabber

Color: Red

Label: Jabber

Function: Jabber lock-up indicator

Jabber refers to an abnormal Ethernet frame transmission. The frames causing jabber are normally much too long. This may result from a malfunctioning Ethernet card and may cause data loss for all network users.

LED Activity

STEADY LIGHT

NO LIGHT

Condition

ON

OFF

Indication

Jabber exists on one or more port connection (i.e., RJ-45 or ALT port).

No jabber occurring.

ΙIMPORTANT! To identify the port causing the problem, check all existing connections one by one, as follows:

1.Select a port to check.

2.Then unplug its cable connection while checking the Jabber display. If the Jabber LED goes OFF, you have successfully identified the defective port. However, if the light remains ON, the port is in good condition.

3.Replug the cable connection, and select another port to test.

4.Repeat this procedure until you find the port causing the problem.

2-6

Hardware Description

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Contents EtherHub 1500 System EtherHub 1500 System QWHUQDWLRQDO-HDGTXDUWHUV FCC Warning Sicherheitshinweise About this Guide Package Contents Contents Hardware Installation Setup and ConfigurationApplications Appendix a Product Specifications Appendix C Product Support ServicesAppendix B Pin Assignments Glossary IndexList of Figures Overview EtherHub 1500 SystemOverview Overview Features of EtherHub 1500 System ∙ BNC EH1551, default module preinstalled in EH1500Distinguishing Factors of EtherHub 1500 System EtherHub 1500 System User’s Guide Chapter Hardware Description Front Panel DisplaysSmartWatch LED Panel SmartWatch LED Panel for EtherHub-16i+Color Green Label PWR/CPU Function Power indicator Terminator Snmp EtherHub 1500 System User’s Guide Jabber EtherHub 1500 System User’s Guide Alert Collision EtherHub 1500 System User’s Guide Segment LED Indicators EtherHub 1500 System User’s Guide Hub ID Indicators Partition Link PARTITION/DISABLED Configure Button Daisy-Chain Switch STP Station PortsSocket Switch Rear Panel DisplaysBUS Power Socket Power SwitchChapter Hardware Installation Before You BeginHardware Installation Stacking Hubs without a Rack Stacking Hubs without a RackMounting Hubs Using a Mounting Rack Mounting Hubs on a RackConnecting the Hub System EtherHub 1500 System User’s Guide Preparing for System Configuration Connecting the Hub’s RS232 Serial Port to a PC COM PortEtherHub 1500 Site Running the Out-of-Band Configuration Program Installing an Snmp Backup Agent EtherHub 1500 System User’s Guide Chapter Setup and Configuration System SetupDiagnostic Tests Multi-Segment Architecture Hub ID Setting Snmp Backup AgentFlexBus 1500 Management Link Port Backup Function Preparing for Configuration Management Hot Remove FunctionFrom a local console ∙ Terminal Channel for local hookup Menu Trap Managers Download Restart Factory Settings System MenuChanging System Configuration Downloading System Software Hub Port Backup Port Push Button Control MenuConfiguring Port Parameters Performance Menu Threshold MenuTo set thresholds Using the Configure Button To summarize Active LEDs Segment LEDs Attach the hub to one segment Master Agent Setting EtherHub-16mi+only Diagnostic function Applications Attaching Stack to One SegmentAttaching Stack to Three Segments Attaching Hubs in Stack to 3 SegmentsAttaching Stack to Multiple Segments Linking Part of the Stacked Hubs to a SegmentEach Hub is Isolated Stacked Hubs Not Linked to a SegmentExtending the Network with STP/BNC Connections Linking a Stack to a Network Management Station Linking Stacked Hubs to a Network Management StationInterconnecting Segments Linking Segments in a Stacked SystemLinking a Distributed Segment Linking a Distributed SegmentLinking Distributed Segments Distributed Multi-Segment EnvironmentAppendix a Product Specifications FeaturesPhysical Characteristics Specifications for FlexBus 1500 Cable PVCAttenuation for Horzontal FlexBus 1500 Cable Next for Horizontal FlexBus 1500 CableStandards Compliance USAAppendix B Pin Assignments FlexBus 1500 Pin DescriptionRS232 Port Pin Description DB9 Serial Port to RJ-45 Converter Connector Pin Assignment DB25 RS232 to RJ-45 Converter Connector Pin Assignment DCE Port Appendix C Product Support Services Problem ReportHardware Repair Service Product RegistrationSoftware Update and Upgrade Service Bulletin Board Service BBSInteractive Fast Fax U.S.A. office Technical SupportLimited Warranty Customer RemediesReturn Process North and South AmericaOrdering Information Glossary 10BASE-TLED Out-of-Band Index Index Index Troubleshooting EH1501s EH1502s E0895-R01