D-Link DFE-908X manual Hub-to-Hub Uplink

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Dual-Speed Stackable Hubs User’s Guide

Hub-to-Hub Uplink

You can link two hubs or hub stacks to each other using any of the twisted- pair ports or the Uplink port. Linking hubs using ordinary twisted-pair ports requires crossover twisted-pair cables; linking using one ordinary twisted-pair port and the Uplink port requires an ordinary straight-through twisted-pair cable. The Uplink port is shared with Port 1, and you should not use both Port 1 and the Uplink port at the same time.

When connecting two hubs or hub stacks in this fashion, the maximum distance between any two end-stations in a collision domain is 205 meters. If each link between the hub and an end-station is 100 meters, then the hub- to-hub connection is limited to 5 meters. However, if the longest hub-to- end-station connection is less than 100 meters, then the hub-to-hub connec- tion can be up to 100 meters long as long as the 205-meter total network diameter rule is followed.

Making Connections

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Contents Recyclable Wichtige Sicherheitshinweise Warranties Exclusive Limited Warranty Trademarks Vcci B Warning Vii Page Table of Contents Cables and Connectors About this Guide ConventionsOverview of the User’s Guide About this Guide Product Description IntroductionProduct Features Dual-speed Fast Ethernet/Ethernet Hub Technology Overview 10Mbps Repeater 100Mbps Repeater NWay Detection RJ-45 Ports Cables and Connectors 100BASE-TX Technology Overview100Mbps Fast Ethernet Introduction Network Diameter TopologyHub Types Unpacking SetupUnpacking Identifying External ComponentsFront Panel LED Indicator Panel Twisted-Pair PortsUplink Port Rear Panel AC Power Connector For the power cordDaisy-Chain in Port Daisy-Chain OUT PortInstallation Installing the HubUnderstanding Indicators Hub State IndicatorsPower Indicator PWR Collision Indicators Col 10M/ Col 100M Port State Indicators10Mbps and 100Mbps Utilization Indicators Link steady greenSwitch Indicator DFE-908x Only Port Speed IndicatorsReceive Rx blinking green Auto-partition Auto-part steady amberPage Page Hub Cascading/Building a Stack Making ConnectionsConnectivity Rules Hub to End-Station Connection Making Connections Hub-to-Hub Uplink HUB Device Port Cable to USE Type Used 100BASE-TX Ethernet Cable and Connectors Cables ConnectorsCrossover Cables Contact MDI-X Signal MDI SignalDual-Speed Stackable Hubs User’s Guide Cables and Connectors General SpecificationsHub-to-Hub Cascading Topology StarPower Supply LED IndicatorsOperating Temperature -10to 55C 14-131F Environmental and PhysicalPage Offices Page Registration Card