3Com 3C16491 manual Link/Activity Status LEDs

Page 12

12INTRODUCING THE BASELINE SWITCH

(3) Link/Activity Status LEDs

The first (top) and third row of LEDs, which are colored yellow or green, show the link, activity and speed status of the related ports:

10/100/1000BASE-T Ports

Status

Meaning

 

 

Green

The link is operating at 1000 Mbps.

Yellow

The link is operating at 10 or 100 Mbps.

Flashing

Packets are being received or transmitted on the

Green

port at 1000 Mbps.

Flashing

Packets are being received or transmitted on the

Yellow

port at 10 or 100 Mbps.

Off

The link has not been established, either nothing

 

is connected to the port, or there is a problem:

 

Check that the attached device is powered

 

 

on.

 

Check that the cable or fiber is the correct

 

 

type and is not faulty.

 

For fiber connections, ensure that the receive

 

 

(RX) and transmit (TX) cable connectors are

 

 

not swapped.

If these checks do not identify the cause of the problem, it may be that the unit or the device connected to the port is faulty. Contact your supplier for further advice.

10/100BASE-TX Ports

Status

Meaning

 

 

Green

The link is operating at 100 Mbps.

Yellow

The link is operating at 10 Mbps.

Flashing

Packets are being received or transmitted on the

Green

port at 100 Mbps.

Flashing

Packets are being received or transmitted on the

Yellow

port at 10 Mbps.

Off

The link has not been established, either nothing

 

is connected to the port, or there is a problem:

Check that the attached device is powered on.

Check that the cable or fiber is the correct type and is not faulty.

For fiber connections, ensure that the receive (RX) and transmit (TX) cable connectors are not swapped.

If these checks do not identify the cause of the problem, it may be that the unit or the device connected to the port is faulty. Contact your supplier for further advice.

(4) Duplex Status LEDs

The second and fourth (bottom) row of Status LEDs, which are colored yellow (for duplex) or green (for module active), show the duplex status of the related ports:

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Contents Baseline Switch PWR Plus 3C164913Com Corporation 350 Campus Drive Marlborough MA USA Contents Snmp Regulatory Notices Glossary Index Page About this Guide ConventionsDocumentation Comments Product RegistrationOverview of the Baseline Switch Features and CapabilitiesAutosensing of MDI/MDIX Connections Autonegotiating 10/100 Mbps PortsPhysical Features Power-over-Ethernet CapabilityGigabit Combo Ports RJ-45/SFP Front PanelGigabit Combo Ports RJ-45/SFP Link/Activity Status LEDs Power LED Rear PanelPackage Contents Positioning the Switch Before You BeginUsing the Mounting Kit Rack-Mounting or Free-StandingMontagesatz Anweisungen Placing Units On Top of Each OtherSupplying Power to the Switch Checking for Correct OperationUsing SFP Tranceivers Approved SFP TransceiversInserting an SFP Transceiver Removing an SFP Transceiver Inserting an SFP TransceiverPerforming Spot Checks Installing the Switch Requirements for Accessing the Web Interface Running the Discovery ApplicationWelcome screen of Discovery appears Logging On to the Web Interface Discovered Devices ScreenNavigating the Web Interface MenuLists the available items on the menu Menu Item Buttons Port StatusAccessing the Interface Without Using Discovery Dhcp Assigned IP AddressManually Assigned Static IP Address Configuration Overview Device Summary InformationDevice View Polling IntervalAdministration Settings Modifying the IP Address SettingsAutomatic IP Configuration Color KeyIP Setup To set the IP address for the SwitchBackup Configuration Restore ConfigurationFirmware Upgrade Upgrade ScreenReboot InitializeSystem Access User SummaryCreate User Modify UserSystem Time Remove UserSetup SummarySnmp Add Configuring VLANs Snmp RemoveVlan Modify Vlan Modify PortRename Modify Port ScreenRemove Port DetailVlan Detail Sample Vlan Configurations Forwarding Tagged/Untagged FramesSetting Up Two VLANs on the Same Switch Setting Up Vlan Across Two SwitchesTagged Vlan Configuration Spanning TreeSpanning Tree Screen Igmp Snooping Igmp QueryBroadcast Storm Broadcast Storm Setup Screen PoEConfiguring Port Settings AdministrationPort Administration Summary Screen DetailPort Administration Setup Screen Speed/Duplex for 1000 Mbps ConnectionsLink Aggregation Guidelines for Creating TrunksCreate Link Aggregation Summary ScreenModify Link Aggregation Modify ScreenSpanning Tree per Port Spanning Tree Summary Screen Spanning Tree Setup Screen Port MirroringPort Mirroring Setup Screen StatisticsQoS VoIP Traffic Settings QoS VoIP Summary ScreenPort Setup QoS VoIP Setup ScreenOUI Summary OUI AddSecurity Radius ClientConfigure Radius Client Detail Screen802.1X Settings 802.1X Summary Screen802.1X Detail Screen Monitoring Address TableCable Diagnostics Address Table ScreenDiagnostics Cable Diagnostic ScreenTroubleshooting Resetting to Factory DefaultsForgotten Password Solving LED IssuesForgotten Static IP Address Fiber cable is connected, but the Module Active LED is off Link/Activity LED is on, but network performance is poorIf the Problem Persists All ports appear to show continual activityPurchase Value-Added Services Troubleshoot Online Access Software DownloadsRegister Your Product Telephone Technical Support and Repair Contact UsCountry Telephone Number Latsupportanc@3com.com Related Standards EnvironmentalPhysical ElectricalAppendix B Technical Information Safety Information Important Safety InformationAppendix C Safety Information Regulatory Notices Page 1000BASE-T Auto-negotiationBandwidth Category 3 Cables Category 5 CablesCategory 5e Cables Category 6 CablesFull Duplex Half DuplexIeee 802.1D Ieee 802.1QLayer Link AggregationMAC Address NetworkSwitch ServerSubnet Address Subnet MaskVlan Index NumbersIndex