Dell PC2716, PC2748, PC2708, PC2724 manual PowerConnect 2748 Back Panel

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Figure 2-7. PowerConnect 2748 Front Panel

On the front panel, there are 48 ports, which are numbered 1 to 48, top down and left to right. On each port, there are LEDs to indicate the port status. There are four SFP (Small Form- Factor Plugable) ports, designated as ports 45, 46, 47 and 48, for fiber connection. The four combo ports are logical ports with two physical connections:

An RJ-45 connection for Twisted Pair (TP) copper cabling.

An SFP port for swappable optical transceiver, which offers high-speed 1000BASE-SX or 1000BASE-LX connection.

NOTE: Only one of the two physical connections of a combo port can be used at any one time. Port features and port controls are determined by the physical connection used. The system automatically detects the media used on a combo port, and utilizes the information in all the control interfaces.

NOTE: The system can switch from the RJ-45 to the SFP (or vice versa) without resetting the device. If both RJ-45 and SFP ports are present, the SFP port will be the active port, whereas the RJ-45 port will be disabled.

On the top right side of the front panel is the Managed Mode LED, which indicates the Ethernet switch operational status. The Fan LED indicates the device fan operations status and the Power LED on the front panel indicates whether the device is powered on or not. A Managed Mode push-button, located on the far right side on the front panel, sets the device management mode.

The back panel contains an AC Power Supply Interface.

The following figure illustrates the back panel of the PowerConnect 2748 device.

Figure 2-8. PowerConnect 2748 Back Panel

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Contents User’s Guide October Contents Using the Dell OpenManage Switch Administrator Viewing Statistics Contents Introduction System DescriptionGigabit Ethernet Ports 16 1-Gigabit Ethernet Ports 24 1-Gigabit Ethernet Ports + 2 SFP Combo ports48 1-Gigabit Ethernet Ports Head of Line Blocking Prevention FeaturesGeneral Features Management ModesJumbo Frames Support Virtual Cable Testing VCTAuto Negotiation AutoMDI/MDIX SupportMAC Address Supported Features Layer 2 FeaturesVlan Supported Features Class of Service CoS FeaturesEthernet Switch Management Features Port Default SettingsPage Switch Port Configurations Hardware DescriptionPowerConnect 2708 Back Panel PowerConnect 2724 Back Panel PowerConnect 2748 Back Panel Managed Mode LED Physical DimensionsPower LED LED DefinitionsFan LED 2748 only Port LEDs10/100/1000BASE-T Port LEDs Managed Mode Button SFP Port LED1000BASE-T Cable Requirements Switch Ventilation FanCables, Port Connections, and Pinout Information RJ-45 Connections for 10/100/1000BASE-T PortsSFP Ports Power Connectors Internal Power Supply ConnectorPin Connections for SFP Interfaces Installing the Dell PowerConnect Installation PrecautionsOverview Safety Site RequirementsUnpacking Package Contents Handling Static Sensitive DevicesUnpacking the Device Mounting the Device Installing the Device Installing the Device in a RackInstalling the Device on a Flat Surface Installing the Device on a WallConnecting the Device to AC Power Supply Mounting Device on a WallConnecting the Device to the Network Back Panel Power ConnectorStarting and Configuring the Dell PowerConnect Viewing Switch OperationInitial Configuration Login Screen Click Apply Changes Page Using the Dell OpenManage Switch Administrator Understanding the InterfaceInterface Components Description Using the OpenManage Switch Administrator Buttons PowerConnect Switch Management ButtonsInformation Buttons PowerConnect Switch Management Buttons Description Starting the ApplicationResetting the Device ResetDisplaying Configuration on Demand Configuring System Information Defining Switch InformationViewing the Switch Status Defining Switch Information Viewing System IP AddressUpdating Static IP Address IP AddressingConfiguring Dhcp Client Defining Interface Configuration Interface ConfigurationPage Configuring the Interface Open the Interface ConfigurationViewing Jumbo Frames Creating Vlan Membership Enabling Jumbo FramesRemoving VLANs Defining Vlan Interface SettingsShowing/Creating VLANs Open the Vlan MembershipConfiguring LAG Membership Updating the Vlan Interface SettingsOpen the Vlan Interface Settings Open the LAG Aggregation Configuration Adding a Port to a LAGManaging System Files Downloading Files From Server Downloading Files from ServerFile Download PowerConnect 2748 Switch Configuration Firmware DownloadConfiguration Download Uploading FilesOpen the File Upload to Server Copying FilesRestoring Company Factory Default Settings Click Restore Company Factory Defaults Click Apply ChangesAssigning Access Level User Rights Local User DatabaseOpen the Local User Database Integrated Cable Test for Copper Cables Adding a User to the Local User DatabaseDeleting a User from the Local User Database Running Integrated Cable Test Open the Integrated Cable TestClick Test Now Optical Transceivers Diagnostics Displaying Optical Transceivers Diagnostics Test ResultsOpen the Optical Transceiver Diagnostics Adding a Port Mirroring Session Port MirroringClick show All Open the Port MirroringConfiguring Storm Control on the PowerConnect Enabling Storm ControlModifying PowerConnect 2708 Storm Control Port Parameters Configuring Storm Control on the PowerConnect 2716/2724Following describes Storm Control for PowerConnect Modifying PowerConnect 2748 Storm Control Port Parameters Configuring Quality of Service Quality of Service QoS OverviewVPT Tag Classification Information CoS Services Defining CoS Settings Configuring QoS SettingsConfiguring the Trust Mode Mapping CoS Values to QueuesMapping Dscp Values to Queues Mapping a CoS value to a QueueMapping a Dscp value and assigning priority queue Page Viewing Statistics Rmon StatisticsViewing Interface Statistics Open the Rmon StatisticsGlossary Broadcast Storm Class of ServiceDuplex Mode Dhcp ClientFrame Flow ControlFragment Gigabit EthernetJumbo Frames Ingress PortIP Address LayerMask Managed ModeMAC Layer MulticastPage QoS Startup ConfigurationSwitch RouterTrunking UnicastWildcard Mask