Canton 3C16476CS manual Performing Spot Checks, Removing an SFP Transceiver, Verify That

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CAUTION: SFP transceivers are keyed and can be properly inserted only one way. If the transceiver does not click when you insert it, remove it, turn it over, and then re-insert it.

3Remove the plastic protective cover, if fitted.

4Connect the fiber cable.

5The transceiver connects to the network using a duplex LC connector. Attach a male duplex LC con- nector on the network cable into the duplex LC con- nector on the transceiver.

6Connect the other end of the cable to a device fitted with an appropriate Gigabit Ethernet connection.

7Check the Module Active LEDs on the front of the Switch to ensure that it is operating correctly.

Removing an SFP Transceiver

Removing an SFP transceiver does not require power- ing off the Switch.

To remove an SFP transceiver:

1Disconnect the cable from the transceiver.

2Move the wire release lever downwards until it is pointing toward you.

3Pull the wire release lever toward you to release the catch mechanism.

The SFP transceiver should slide out easily.

Performing Spot Checks

19

Performing Spot Checks

At frequent intervals, you should visually check the Switch. Regular checks can give you an early warning of a possible failure; any problems can then be attended to when there will be least effect on users.

3Com recommends periodically checking the items listed in Table 9.

Table 9 Items to Check

Item

Verify That

 

 

Cabling

All external cabling connections are secure

 

and that no cables are pulled taut

Cooling fan

Where possible, check that the cooling fan

 

is operating by listening to the unit. The

 

fan is fitted near to the front right hand

 

side of the unit (when viewed from the

 

front).

 

 

If you experience any problems operating the Switch, refer to “Troubleshooting” starting on page 59.

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Contents 3C16476CS Baseline Switch 2250 PlusRegulated Materials Statement End of Life StatementEnvironmental Statement about the Documentation Contents Safety Information Icon Description ConventionsConvention Description Documentation Comments Related DocumentationAutonegotiating 10/100 Mbps Ports Overview of the Baseline Switch 2250 PlusFeatures and Capabilities Autosensing of MDI/MDIX ConnectionsPriority Level SFP PortsTraffic Prioritization Forwarding of Bpdu PacketsFront Panel Physical Features48 RJ-45 Ports Link/Activity LEDs 10/100/1000BASE-T/SFP PortsStatusMeaning Status Meaning Module Active LEDsPackage Contents Before You Begin Positioning the SwitchUsing the Mounting Kit Aufstellen des SwitchRack-Mounting or Free-Standing Inserting the Screws Montagesatz AnweisungenColor State Supplying Power to the SwitchPlacing Units On Top of Each Other Checking for Correct OperationConnecting Devices to the Switch Connecting a Network DeviceApproved SFP Transceivers Using SFP TransceiversInserting an SFP Transceiver Removing an SFP Transceiver Performing Spot ChecksVerify That Installing the Switch Running the Discovery Application Requirements for Accessing the Web InterfaceWelcome screen of Discovery appears Navigating the Web Interface Logging On to the Web InterfaceMenu Menu Item Description Lists the available items on the menuNavigating the Web Interface ButtonsDhcp Assigned IP Address Accessing the Interface Without Using DiscoveryManually Assigned Static IP Address Device Summary Information Configuration OverviewDevice View Color Key Polling IntervalModifying the IP Address Settings Administration SettingsAutomatic IP Configuration Backup Configuration IP SetupRestore Configuration Initialize Firmware UpgradeSystem Access RebootUser Summary Modify User Create UserRemove User Snmp Add SetupSystem Time SummarySnmp Remove Configuring VLANsModify Vlan VlanModify Vlan Screen Modify PortRemove RenamePort Detail Forwarding Tagged/Untagged FramesVlan Detail Setting Up Two VLANs on the Same Switch Sample Vlan ConfigurationsSetting Up Vlan Across Two Switches Spanning Tree Tagged Vlan ConfigurationIgmp Query Igmp SnoopingAdministration Configuring Port SettingsBroadcast Storm Detail Port Administration Summary ScreenLink Aggregation Speed/Duplex for 1000 Mbps ConnectionsCreate Guidelines for Creating TrunksModify Spanning Tree per PortSpanning Tree Summary Screen Spanning Tree Detail Screen Port MirroringPort Mirroring Screen QoS VoIP Traffic SettingsQoS VoIP Setup Screen Port SetupOUI Modify OUI SummarySecurity ConfigureRadius Client Radius Client Configure Screen 802.1X Settings802.1X Setup Screen Monitoring Cable DiagnosticsAddress Table Cable Diagnostic Screen DiagnosticsConfiguring the Switch Forgotten Password Resetting to Factory DefaultsLink/Activity LED is on, but network perfor- mance is poor Solving LED IssuesForgotten Static IP Address Fiber cable is connected, but the Module Active LED is offAll ports appear to show continual activity If the Problem PersistsTroubleshooting Troubleshoot Online Access Software Downloads Purchase Value-Added ServicesRegister Your Product Contact Us Telephone Technical Support and RepairCountry Country Telephone NumberUS and Canada Telephone Technical Support and Repair Important Safety Information Safety InformationAppendix B Safety Information Electrical Related StandardsEnvironmental PhysicalAppendix C Technical Information Category 3 cable 1000BASE-TAutonegotiation BandwidthEthernet Category 5e cablesCategory 6 cable ClientLayer Ieee 802.1pIeee 802.3ad IP AddressProtocol SwitchNetwork PingTrunking Traffic monitoringGlossary Index Index Regulatory Notices