Accton Technology CheetaHub Power-3008N Quick Installation Manual

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Accton Technology CheetaHub Power-3008N Quick Installation Manual Manual pdf 5 page image

Quick Installation GuideCheetaHub Power-3008N/3016N4 5Restrictions on Cascade Length - When cascading to another repeater, note thatthe attached repeaters will function as a single logical repeater, with all portsattached to the same collision domain.ï 10 Mbps Cascade - Based on the IEEE 802.3 recommendation, you may cascadeup to four 10 Mbps hubs.ï 100 Mbps Cascade - When cascading to a Fast Ethernet hub, limit the daisy-chain to two hubs. Another limitation for cascading Fast Ethernet concernsconnection length. All end-node devices (e.g., workstations or servers) must bewithin 100 meters (328 feet) of the connected hub; and the overall length betweenany two nodes should not exceed 205 meters (672 feet). The easiest way tocascade two Fast Ethernet hubs is to connect the MDI daisy-chain port on thefront panel to an MDI-X port on the other hub. For example, if both node A and Bare linked to separate repeaters in a two hub system, each using 100 meters ofcable to connect to their respective hub, then the inter-hub cabling will be limitedto 5 meters (16 feet). The only way to extend the inter-hub cabling, wouldtherefore be to reduce the length of the cabling used to attach the end nodes tothe hubs.ï Ethernet Switch - There are no formal restrictions on cascade length if a device isconnected to a switch, which effectively breaks up the collision domain. When acollision domain is broken up by a device like a switch, cascade length is limitedonly by the time-out requirements of the particular applicationsrunning over the network.Connecting to the Stack’s BackplanePlug one end of the stacking cable (provided withthis package) into the ìOutî port of the top huband the other end into the ìInî port of the nexthub. Repeat this step for each hub in the stackso that there is a simple chain starting from theìOutî port of the top hub and ending at the ìInîport of the last hub.You can stack up to six units using the stack ports.Notes: 1. If more than one hub with internal switching (either the EH3008N-SW orEH3016N-SW) is placed in the stack, switching between stack segments willbe managed by the highest unit in the stack, and internal switching will bedisabled for all other units.2. If any hubs in the stack are powered off, traffic flowing across the stackísbackplane will automatically bypass those units.Powering On the Hub1. Plug the power cord into the power socket at the rear of the hub, and the otherend into a power outlet.2. Check the LED marked Power on the front panel to see if it is on. The unit willautomatically select the setting that matches the connected input voltage.Therefore, no additional adjustments are necessary when connecting it to anyinput voltage within the range marked on the rear panel.Verifying Port StatusCheck each connection by viewing the port status indicators shown in the followingfigure and table.DEL etatS noitacidnIrewoP )neerg(nO .rewopgniviecersibuHtcA )neerg(gnihsalF .subretaeperM001roM01ehtgnisrevartsiciffarTloC )wolley(gnihsalF .tnemgesM001roM01ehtnidetcetednoisilloctekcaPkniL )neerg(nO .noitcennockrowtenM001dilavadehsilbatsesahtroP)wolley(nO .noitcennockrowtenM01dilavadehsilbatsesahtroPnoititraP )wolley(nO .krowtenehtmorfdenoititrapneebsahtropehT%litUM01 )wolley/neerg(nO .)wolley(%46,)neerg(%23/61/4tanoitazilitutnemgesM01%litUM001 )wolley/neerg(nO .)wolley(%46,)neerg(%23/61/4tanoitazilitutnemgesM001CNB )wolley(nO .)ylnoWS-N6103HE,N6103HE(.krowtenmorfdenoititraptroPVerifying System OperationVerify that all attached devices have a valid connection. The hub monitors the linkstatus for each port. If any device is properly connected to the hub and transmittinga link beat signal, the Link indicator will light up for the corresponding port. If the Linkindicator fails to light when you connect a device to the hub, check the following items:ï Be sure the twisted-pair cable is properly attached to the connected device andthe hub. Verify that the media connector snaps into place when attached.ï See if your cable is functioning properly by using it for another port and attacheddevice that displays valid indications when connected to the network.ï Check the length of each twisted-pair cable to be sure it does not exceed 100meters (328 feet). If you have cascaded two Fast Ethernet hubs together, be surethe interhub cabling is no longer than 5 meters (16 feet).ï Verify that the workstation's adapter card is functioning properly by trying it inanother computer that has been successfully connected to the network.ApplicationsThese dual-speed CheetaHubs allow great flexibility in configuring your network.You can use them in a stand-alone or multiple hub configuration to mix and matchboth legacy Ethernet and Fast Ethernet network resources on your local network.Moreover, you can easily extend your LAN by making a high-speed connection to acollapsed backbone device (e.g., a switch or a router).Stand-Alone Network - The CheetaHubs with the internal switching function(EH3008N-SW, EH3016N-SW) can be used in a simple stand-alone configuration asillustrated in the figure below. Regardless of whether you are making 10 or 100Mbps connections with twisted-pair cable, limit the distance for each cable to 100meters (328 feet).