Accton Technology FAST ETHERHUB-12S manual Fast EtherHub-12s User’s Guide

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Fast EtherHub-12s User’s Guide

With automatic partitioning and reconnection, any port is automatically isolated if excessive collisions occur on it. When the condition is corrected, the port is automatically reconnected.

With the jabber lock-up function, the hub automatically stops transmission of abnormal Ethernet frames that may cause data loss for all network users. (Jabber refers to abnormal Ethernet frames which are much too long and may come from a malfunctioning Ethernet card.)

With automatic polarity detection, the hub recognizes and adjusts for attached cable assemblies which may be wired with incorrect polarity on the receive pair.

Product Overview

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Contents Fast EtherHub-12s Installation Manual QWHUQDWLRQDO+HDGTXDUWHUV Package Contents Quick Installation Fast EtherHub-12s User’s Guide About this Guide Contents Appendix C Specifications Appendix a TroubleshootingAppendix E Product Support Services Appendix B Port and Cable AssignmentsList of Tables Glossary Index List of FiguresIntroduction to Fast Ethernet Product OverviewAccton’s Fast EtherHub-12s Basic Features Fast EtherHub-12s User’s Guide Pre-Installation Requirements Installing the SystemMaking a Connection via an MDI-X Station Port Connecting the Hub SystemDistance Limit for Fast Ethernet Cabling Making a Connection via the MDI Daisy-Chain PortPrecise Cable Length Budgeting Providing Power to the EtherHub Verifying System Operation Verifying Port StatusFast EtherHub-12s User’s Guide Connecting Multiple Hubs Configuring the NetworkStand-Alone Multiple Hub Configuration Using the Daisy-Chain Port Using the RJ-45 Daisy-Chain PortPrecise Guidelines for Configuring Multiple Hubs Cabling Limits for Multiple Hub Configuration Hardware Reference IndicatorsFront Panel Color Red Label Alert Function Fan status Hardware Reference Color Label Function RJ-45 Ethernet Ports Rear Panel Power SocketDiagnosing Hub Indicators Appendix a TroubleshootingPower and Cooling Problems System DiagnosticsInstallation Hub Integrity Physical ConfigurationRJ-45 Port Appendix BCategory 5 STP/UTP Appendix C Product SpecificationsEMI Certification Appendix DFCC Class B Certification Voluntary Control Council for Interference VCCI-2 European Community Immunity Requirements CE Mark Declaration of Conformance for EMI and SafetyUnderwriters Laboratories Inc Safety ComplianceSicherheitshinweise Problem Report Appendix E Product Support ServicesHardware Repair Service Product RegistrationInteractive Fast Fax U.S.A. office Bulletin Board Service BBSInternational Headquarters USA Headquarters Technical SupportCustomer Remedies Limited WarrantyNorth and South America Return ProcessOrdering Information Accton Offices100BASE-TX GlossaryLED Shielded Twisted-Pair STP Index Index EH3012-TX 150114-101 E0197-R02