3Com 2226-SFP, 2250-SFP, 2426-PWR manual Positioning the Switch, Importante Avviso di Sicurezza

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18INSTALLING THE SWITCH

vorhanden ist. Sie können diese Sicherheitsanleitung auf der CD-ROM finden die im Lieferumfang Ihres Netzwerkschalters enthalten ist. Sie können die Anleitungsdatei auch von der 3Com Webseite: www.3Com.com herunterladen.

Importante Avviso di Sicurezza

Vi preghiamo di leggere attentamente e seguire le istruzioni indicate nel manuale di sicurezza "3Com Switch Family Safety and Regulatory Information", che troverete incluso a questo prodotto. Puó trovare il suddetto manuale nel CD-ROM allegato al Vostro Switch. Potete anche scaricarlo dal nostro sito:

www.3Com.com

Information importante de seguridad

Le rogamos lea y siga atentamente las instrucciones indicadas en el manual de seguridad del 3Com Switch Family Safety and Regulatory Information, incluido en este producto. Puede encontrar el manual en el CD-ROM adjunto a su switch.Alternativamente lo puede bajar de la web de 3Com: www.3Com.com

Istotne informacje dot. bezpieczeństwa

Informacje dotyczące bezpieczeństwa są umieszczone w Instrukcji obsługi 3Com Switch Family, która jest do łączona do tego produktu. Wraz z prze łącznikiem znajduje sie instrukcja na płycie CD-ROM. Istnieje także możliwość pobrania instrukcji bezpośrednio ze strony internetowej www.3Com.com

Positioning the Switch

The Switch is suitable for use in an office environment where it can be free-standing or mounted in a standard 19-inch equipment rack.

Alternatively, the Switch can be rack-mounted in a wiring closet or equipment room. A mounting kit, containing two mounting brackets and four screws, is supplied with the Switch.

When deciding where to position the Switch, ensure that:

It is accessible and cables can be connected easily.

Cabling is away from sources of electrical noise. These include lift shafts, microwave ovens, and air conditioning units. Electromagnetic fields can interfere with the signals on copper cabling and introduce errors, therefore slowing down your network.

Water or moisture cannot enter the case of the unit.

Air flow around the unit and through the vents on the side of the case is not restricted (3Com recommends that you provide a minimum of 25 mm (1 in.) clearance).

The air is as free from 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.

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Contents Installation and User Guide 3Com Corporation 350 Campus Drive Marlborough MA Contents Snmp 3COM CLI Reference Guide Page About this Guide ConventionsDocumentation Comments Product RegistrationAutosensing of MDI/MDIX Connections Overview of the Baseline SwitchFeatures and Capabilities Autonegotiating 10/100 Mbps PortsPhysical Features Power-over-Ethernet CapabilityGigabit Combo Ports RJ-45/SFP Front Panel RJ-45 10/100 PortsGigabit Combo Ports RJ-45/SFP 10/100BASE-TX Link/Activity Status LEDs SFP Mode Power LED Rear PanelPackage Contents Installing the Switch Important Safety InformationPositioning the Switch Importante Avviso di SicurezzaUsing the Mounting Kit Rack-Mounting or Free-StandingSupplying Power to the Switch Montagesatz AnweisungenPlacing Units On Top of Each Other Checking for Correct Operation Status MeaningUsing SFP Tranceivers Approved SFP TransceiversInserting an SFP Transceiver Performing Spot Checks Removing an SFP TransceiverRefer to Troubleshooting on Requirements for Accessing the Web Interface Using the Console Command Line Interface CLICLI Summary with Default IP Address Logging On to the Web Interface CLI Summary with Assigned IP AddressNavigating the Web Interface MenuMenu Item Description Snmp Buttons Port StatusRunning the 3Com Switch Detect Application 3Com Switch Detect Welcome Screen3Com Switch Detect Search Screen Connecting to the WEB Interface Configuration Overview Device Summary InformationDevice View Polling IntervalAutomatic IP Configuration Administration SettingsModifying the IP Address Settings Color KeyIP Setup Backup ConfigurationRestore Configuration Firmware UpgradeReboot ResetSystem Access Initialize, keep IP settingUser Summary Create UserModify User Remove UserSetup System NameSystem Time Configuring VLANs Snmp AddSnmp Remove Vlan Setup Screen Modify VlanModify Port RenameRemove Port DetailSample Vlan Configurations Forwarding Tagged/Untagged FramesVlan Detail Setting Up Two VLANs on the Same Switch Setting Up Vlan Across Two SwitchesTagged Vlan Configuration Spanning TreeSummary Spanning Tree Summary ScreenPort Setup Spanning Tree Setup ScreenSpanning Tree Port Setup Screen Igmp Snooping & QueryBroadcast Storm Broadcast Storm Summary ScreenQoS VoIP Traffic Settings ModifyQoS VoIP Setup Screen OUI Summary OUI AddPoE 3CBLSF26-PWR only QoS OUI Modify ScreenConfiguring Port Settings AdministrationPort Administration Summary Screen DetailPort Administration Setup Screen Speed/Duplex for 1000 Mbps ConnectionsLink Aggregation Guidelines for Creating TrunksCreate Link Aggregation Summary ScreenUse the Remove tab to delete a link aggregation group Security StatisticsRadius Client 802.1X Settings Configure802.1X Summary Screen Monitoring Address TablePort Mirroring Port SummaryUse the Setup tab to create a port mirror session Cable Diagnostics Cable Diagnostic Summary ScreenDiagnostics Cable Diagnostic ScreenConfiguring the Switch from the WEB Interface Troubleshooting Resetting to Factory DefaultsSolving LED Issues Forgotten Static IP AddressFiber cable is connected, but the Module Active LED is off If the Problem Persists Link/Activity LED is on, but network performance is poorAll ports appear to show continual activity Troubleshooting Purchase Value-Added Services Troubleshoot Online Access Software DownloadsRegister Your Product Telephone Technical Support and Repair Contact UsCountry Telephone Number Latsupportanc@3com.com Physical 3CBLSF26 Related StandardsEnvironmental Electrical3CBLSF26PWR Related Standards Physical 3CBLSF50 Related StandardsEnvironmental ElectricalAppendix B Technical Information PIN-OUTS Console CableNull Modem Cable PC-AT Serial CableModem Cable Ethernet Port RJ-45 Pin Assignments Pin Number 10/100 1000Appendix C PIN-OUTS Getting Started with the Command Line Interface Console PortLogging on to the CLI CLI Commands Automatic LogoutConcurrent CLI Sessions Syntax Default Configuration Ping ParametersIpSetup 255.255.255.0Upgrade Following example resets the Switch to factory defaults InitializePassword LogoutRegulatory Notices 100 1000BASE-T Auto-negotiationBandwidth Category 5e Cables Category 3 CablesCategory 5 Cables Category 6 CablesIeee 802.1D Full DuplexHalf Duplex Ieee 802.1QLink Aggregation Power over EthernetLayer MAC AddressSubnet Address SwitchServer Subnet MaskVlan Index NumbersIndex