Canton 3C16476CS Aufstellen des Switch, Rack-Mounting or Free-Standing, Using the Mounting Kit

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14CHAPTER 2: INSTALLING THE SWITCH

recommends that you provide a minimum of 25

mm or 1 in. clearance).

The air is as free of dust as possible.

Temperature operating limits are not likely to be exceeded. It is recommended that the unit is installed in a clean, air conditioned environment.

It is always good practice to wear an anti-static wrist strap when installing network equipment, connected to a ground point. If one is not available, try to keep in contact with a grounded rack and avoid touching the unit's ports and connectors, if possible. Static dis- charge can cause reliability problems in your equip- ment.

Aufstellen des Switch

Bei der Entscheidung wo Sie den Switch position- ieren, stellen Sie sicher das:

Der Switch zugänglich ist und die Kabel leicht angeschlossen werden können.

Die Kabel nicht in der nähe von elektrischen Störquellen befinden. Das schließt Aufzugsschächte, Mikrowellen und Klimaanlagen ein. Elektromagnetische Felder können die Signale in den Kupferleitungen stören, und Fehler verursachen, was die Verlangsamung Ihres Netzwerkes zur Folge haben kann.

Weder Wasser noch Feuchtigkeit in das Gehäuse eindringen kann.

Die Luftzirkulation um den Switch und durch die Öffnungen des Gehäuses nicht behindert wird.

3Com empfiehlt das Sie 25mm (1 Inch) Zwischenraum sicherstellen.

Die Luft so frei wie möglich von Staub ist.

Es unwahrscheinlich ist das die Betriebstemperatur überschritten wird. 3Com empfiehlt das Sie den Switch in einer sauberen, klimatisierten Umgebung installieren.

Rack-Mounting or Free-Standing

The unit can be mounted in a 19-inch equipment rack using the supplied mounting kit, (see “Using the Mounting Kit” on page 14), or it can be free-stand- ing. Do not place objects on top of the unit or stack.

CAUTION: If installing the Switch in a free-standing stack of different size Baseline or SuperStack® 3 units, the smaller units must be installed above the larger ones. Do not have a free-standing stack of more than six units.

Using the Mounting Kit

The Switch is supplied with two mounting brackets and four screws. These are used for rack mounting the unit. When mounting the unit, take note of the guidelines given in “Positioning the Switch” on page 13.

The Switch is 1U (1.75 in.) high and will fit in a stan- dard 19-inch rack.

CAUTION: Before continuing, disconnect all cables from the unit. Remove the self-adhesive pads from the underside of unit, if already fitted.

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Contents Baseline Switch 2250 Plus 3C16476CSEnvironmental Statement about the Documentation End of Life StatementRegulated Materials Statement Contents Safety Information Convention Description ConventionsIcon Description Related Documentation Documentation CommentsAutosensing of MDI/MDIX Connections Overview of the Baseline Switch 2250 PlusFeatures and Capabilities Autonegotiating 10/100 Mbps PortsForwarding of Bpdu Packets SFP PortsTraffic Prioritization Priority Level48 RJ-45 Ports Physical FeaturesFront Panel StatusMeaning 10/100/1000BASE-T/SFP PortsLink/Activity LEDs Module Active LEDs Status MeaningPackage Contents Positioning the Switch Before You BeginRack-Mounting or Free-Standing Aufstellen des SwitchUsing the Mounting Kit Montagesatz Anweisungen Inserting the ScrewsChecking for Correct Operation Supplying Power to the SwitchPlacing Units On Top of Each Other Color StateConnecting a Network Device Connecting Devices to the SwitchInserting an SFP Transceiver Using SFP TransceiversApproved SFP Transceivers Verify That Performing Spot ChecksRemoving an SFP Transceiver Installing the Switch Requirements for Accessing the Web Interface Running the Discovery ApplicationWelcome screen of Discovery appears Menu Logging On to the Web InterfaceNavigating the Web Interface Lists the available items on the menu Menu Item DescriptionButtons Navigating the Web InterfaceManually Assigned Static IP Address Accessing the Interface Without Using DiscoveryDhcp Assigned IP Address Device View Configuration OverviewDevice Summary Information Polling Interval Color KeyAutomatic IP Configuration Administration SettingsModifying the IP Address Settings Restore Configuration IP SetupBackup Configuration Firmware Upgrade InitializeUser Summary RebootSystem Access Remove User Create UserModify User Summary SetupSystem Time Snmp AddConfiguring VLANs Snmp RemoveVlan Modify VlanModify Port Modify Vlan ScreenRename RemoveVlan Detail Forwarding Tagged/Untagged FramesPort Detail Setting Up Vlan Across Two Switches Sample Vlan ConfigurationsSetting Up Two VLANs on the Same Switch Tagged Vlan Configuration Spanning TreeIgmp Snooping Igmp QueryBroadcast Storm Configuring Port SettingsAdministration Port Administration Summary Screen DetailSpeed/Duplex for 1000 Mbps Connections Link AggregationGuidelines for Creating Trunks CreateSpanning Tree per Port ModifySpanning Tree Summary Screen Port Mirroring Spanning Tree Detail ScreenQoS VoIP Traffic Settings Port Mirroring ScreenPort Setup QoS VoIP Setup ScreenOUI Summary OUI ModifyRadius Client ConfigureSecurity 802.1X Settings Radius Client Configure Screen802.1X Setup Screen Address Table Cable DiagnosticsMonitoring Diagnostics Cable Diagnostic ScreenConfiguring the Switch Resetting to Factory Defaults Forgotten PasswordFiber cable is connected, but the Module Active LED is off Solving LED IssuesForgotten Static IP Address Link/Activity LED is on, but network perfor- mance is poorIf the Problem Persists All ports appear to show continual activityTroubleshooting Register Your Product Purchase Value-Added ServicesTroubleshoot Online Access Software Downloads Telephone Technical Support and Repair Contact UsCountry Telephone Number CountryUS and Canada Telephone Technical Support and Repair Safety Information Important Safety InformationAppendix B Safety Information Physical Related StandardsEnvironmental ElectricalAppendix C Technical Information Bandwidth 1000BASE-TAutonegotiation Category 3 cableClient Category 5e cablesCategory 6 cable EthernetIP Address Ieee 802.1pIeee 802.3ad LayerPing SwitchNetwork ProtocolTraffic monitoring TrunkingGlossary Index Index Regulatory Notices