Accton Technology FAST ETHERHUB-12S manual Cabling Limits for Multiple Hub Configuration

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Fast EtherHub-12s User’s Guide

Figure 3-3 Cabling Limits for Multiple Hub Configuration

Notes:

1.The maximum length for each cable must be determined by calculations for the longest path (i.e., node-to-node connection) that passes through that segment.

2.To control the number of hubs in a path, we recommend that one hub be used to connect to several other hubs. Make sure there is only one path between any two stations on the network.

3.If you need to connect network devices over a long distance, use a switching hub or router to split the network up into two or more collision domains. For detailed information on purchasing the required equipment, contact your local distributor or Accton representative for support.

3-4

Configuring the Network

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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 a Troubleshooting Appendix C SpecificationsAppendix E Product Support Services Appendix B Port and Cable AssignmentsGlossary Index List of Figures List of TablesProduct Overview Introduction to Fast EthernetAccton’s Fast EtherHub-12s Basic Features Fast EtherHub-12s User’s Guide Installing the System Pre-Installation RequirementsConnecting the Hub System Making a Connection via an MDI-X Station PortMaking a Connection via the MDI Daisy-Chain Port Distance Limit for Fast Ethernet CablingPrecise Cable Length Budgeting Providing Power to the EtherHub Verifying Port Status Verifying System OperationFast EtherHub-12s User’s Guide Configuring the Network Connecting Multiple HubsStand-Alone Using the RJ-45 Daisy-Chain Port Multiple Hub Configuration Using the Daisy-Chain PortPrecise Guidelines for Configuring Multiple Hubs Cabling Limits for Multiple Hub Configuration Indicators Hardware ReferenceFront Panel Color Red Label Alert Function Fan status Hardware Reference Color Label Function RJ-45 Ethernet Ports Power Socket Rear PanelAppendix a Troubleshooting Diagnosing Hub IndicatorsSystem Diagnostics Power and Cooling ProblemsInstallation Physical Configuration Hub IntegrityAppendix B RJ-45 PortAppendix C Product Specifications Category 5 STP/UTPAppendix D EMI CertificationFCC Class B Certification Voluntary Control Council for Interference VCCI-2 CE Mark Declaration of Conformance for EMI and Safety European Community Immunity RequirementsSafety Compliance Underwriters Laboratories IncSicherheitshinweise Appendix E Product Support Services Problem ReportHardware Repair Service Product RegistrationBulletin Board Service BBS Interactive Fast Fax U.S.A. officeTechnical Support International Headquarters USA HeadquartersLimited Warranty Customer RemediesReturn Process North and South AmericaAccton Offices Ordering InformationGlossary 100BASE-TXLED Shielded Twisted-Pair STP Index Index EH3012-TX 150114-101 E0197-R02