3Com SuperStack 3 3C16464C User Manual

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3Com SuperStack 3 3C16464C User Manual Manual pdf 2 page image

Numbered elements in this diagram refer to numbered sections inthe text. A 24-port unit is shown.Front Panel1 24 RJ-45 10/100 PortsWARNING : RJ-45 ports. These are shielded RJ-45 datasockets. They cannot be used as standard traditionaltelephone sockets, or to connect the unit to a traditionalPBX or public telephone network. Only connect RJ-45data connectors, network telephony systems, or networktelephones to these sockets. Either shielded or unshieldeddata cables with shielded or unshielded jacks can beconnected to these data sockets.AVERTISSEMENT: Les ports RJ-45. Ceux-ci sontprotégés par des prises de données. Ils ne peuvent pasêtre utilisés comme prises de téléphone conventionnellesstandard, ni pour la connection de l’unité à un réseautéléphonique central privé ou public. Raccorder seulementconnecteurs de données RJ-45, systèmes de réseaux detéléphonie ou téléphones de réseaux à ces prises. Il estpossible de raccorder des câbles protégés ou nonprotégés avec des jacks protégés ou non protégés à cesprises de don.WARNUNG: RJ-45-Porte. Diese Porte sind geschützteDatensteckdosen. Sie dürfen weder wie normaletraditionelle Telefonsteckdosen noch für die Verbindungder Einheit mit einem traditionellem privatem oderöffentlichem Telefonnetzwerk gebraucht werden. NurRJ-45-Datenanscluße, Telefonnetzsysteme or Netztelefonean diese Steckdosen anschließen. Entweder geschützteoder ungeschützte Buchsen dürfen an dieseDatensteckdosen angeschlossen werden.10BASE-T/100BASE-TX PortsThe Baseline 10/100 Switch has 12 (3C16464C) or 24(3C16465C) 10/100 Mbps auto-negotiating ports.To connect a device to the Baseline 10/100 Switch, useCategory 5 unshielded or shielded (screened) 100 OhmTP cable (or Category 3 cable for a 10 Mbps connection).The maximum length of cable for each connection is100m (328ft). Connect one end of the cable to an RJ-45port on the Baseline 10/100 Switch, and the other end tothe appropriate RJ-45 port on the connecting device.Each port on the Baseline 10/100 Switch isauto-negotiating: its speed and duplex mode (half duplexor full duplex) are automatically determined by thecapabilities of the connected device.Each port is Auto MDIX and can be connected to either a10BASE-T or a 100BASE-TX device.If you connect two Baseline 10/100 Switch units together,the link between them operates at 100Mbps full duplex.You must use Category 5 cable when connecting theunits.CAUTION: The Baseline 10/100 Switch supports fullduplex auto-negotiation. If the connected device does notsupport auto-negotiation, the Switch will operate in halfduplex mode (even if the device is operating in full duplexmode). In such a configuration, you may notice somedegradation of network performance. 3Com recommendsthat you use devices that are capable of auto-negotiation(and that you ensure that auto-negotiation is enabled, ifit is a configurable option).2 Activity/Duplex Status LEDsThe first (top) and third row of LEDs, which are colored yellow,show the activity or duplex status of the related ports:! When the Display Function switch is out (its normal position),these LEDs show the activity of each port. The LED flasheswhen packets are received or transmitted on the port.! When the Display Function switch is pressed in, these LEDsshow the duplex status of each port:3 Link/Speed Status LEDsThe second and fourth (bottom) row of Status LEDs, which arecolored green, show the link or speed status of the related ports:! When the Display Function switch is out (its normal position),these LEDs show the link status of each port:HOW TO USE THE BASELINE 10/100 SWITCHStatus MeaningYellow The port is operating in full duplex mode.Off If the link is established, the port is operating in half duplexmode.Status MeaningGreen The link has been established and the segment attached tothe port is functional.Off If the link has not been established, either nothing is con-nected to the port, or there is a problem: Check that the attached device is powered on. Check that the cable is the correct type and is not faulty.If these checks do not identify the cause of the problem, itmay be that the unit or the device connected to the port isfaulty. Contact your supplier for further advice.!2