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3Com 3C16897 8-slot DC Chassis manual Select VT100 in the Emulation dropdown menu 8 Click OK

Models: 3C16894 4-slot Chassis 3C16897 8-slot DC Chassis 3C16895 7-slot Chassis 3C16896 8 slot AC Chassis

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7Select VT100 in the Emulation dropdown menu.

Setting Terminal Parameters

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Figure 39 COM1 Properties Dialog Box

4Click OK. The HyperTerminal dialogue box displays, as shown in Figure 40.

Figure 40 HyperTerminal Window

5Select Properties.

6In the Properties dialog box, select the Settings tab, shown in Figure 41.

7Select VT100 in the Emulation dropdown menu.

8Click OK.

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3Com 3C16897 8-slot DC Chassis, 3C16895 7-slot Chassis manual Select VT100 in the Emulation dropdown menu 8 Click OK

Contents

3Com Family Switch 7750 Installation Guide 3C16896 8-slot AC Chassis 3C16897 8-slot DC Chassis3C16895 7-slot Chassis 3C16894 4-slot Chassis and associated modules 01752-3064 3Com Corporation350 Campus Drive Marlborough, MACONFIGURING THE SWITCH CONTENTSSWITCH 7750 COMPONENTS INSTALLING THE SWITCHMAINTAINING HARDWARE TROUBLESHOOTINGOBTAINING SUPPORT FOR YOUR SWITCH MAINTAINING SOFTWAREDocumentation ABOUT THIS GUIDEConventions Related6 ABOUT THIS GUIDE SWITCH 7750 COMPONENTS Switch ChassisSwitch Backplane Fabric Module Figure 3 Fabric Table 3 lists Fabric specificationsTable 3 Fabric Specifications Figure 3 illustrates the front panel of the Fabric1000BASE-X-SFP Ports Compact Flash CF PortEthernet Port Console PortModule LEDs Power LEDsReset Button Fabric 32 Submodules4-Port 10/100/1000BASE-T Submodule I/O Modules 12-port 10/100/1000BASE-T and 4-port 1000BASE-X SFP Module 3C16891612-port 1000BASE-X SFP and 4-port 10/100/1000BASE-T Module 3C186917 Figure 12illustrates the 48-port 10/100BASE-T FE PoE module 48-port 10/100/1000BASE-T PoE Module Table 22 describes the 48-port 10/100/1000BASE-T PoE module LEDs transmission distance Table 21 Specifications for the 48-Port 10/100BASE-TX FE ModuleCables and maximum Cables are 2 100-ohm Category-5 twisted pairs up to 100 m 300 ftModule Figure 15 Front Panel of the 48-port 48-port 100BASE-X SFP Module Table 26 lists the cables for the 48-port 100BASE-X SFP ports Each 100 Mbps optical port has a green LED, as shown in Figure Figure 18 illustrates the 20-Port 10/100/1000BASE-T Module ModuleTable 30 lists specifications of the 20-port 10/100/1000BASE-T module 12-port 10/100/1000BASE-T and 4-port 1000BASE-X SFP Module 3C168916 26 CHAPTER 1 SWITCH 7750 COMPONENTS12-port 1000BASE-X SFP and 4-port Figure 24 12-port 1000BASE-X SFP and 4-port 10/100/1000BASE-T Module Table 38 lists the cables for the 1000BASE-X SFP ports Figure 26 8-Port 1000BASE-X GBIC Module Figure 28 illustrates the 8-port 10/100/1000BASE-T GE module ModuleTable 42 describes the LEDs on the 8-port 10/100/1000BASE-T GE module System Power ModulePower Distribution External PoE PowerFan Assembly Table 46 Specifications for the Switch 7750 System Switch 7750 SpecificationsTable 46 provides detailed information about features of the Switch Figure 31 Fan Assembly36 CHAPTER 1 SWITCH 7750 COMPONENTS Table 46 Specifications for the Switch 7750 System continuedINSTALLING THE SWITCH Preparing to InstallGeneral Safety Recommendations Temperature and Humidity Electrical SafetyMoving the Switch Laser SafetyStatic Electricity Electromagnetic DischargeLightning Damage Workbench Installing the CablingRack CabinetInstalling a Module Installing aSubmodule Configuring Power Connecting theGround Wire Connecting andCords Connecting DC Power To connect DC power cords, do the followingPower Cord Figure 34 Back of the PoE RackFigure 35 Front Panel of the PoE Rack Installing the Fan AssemblyInstalling Cables Cables Connecting Electrical Port Cables Connecting Optical Fiber CablesSC fiber connector MT-RJ fiber connector Installing Cablingoperates correctly Post-installationChecklist Installation ChecklistSetting Terminal CONFIGURING THE SWITCHConfiguring the Switch 7750 and aBaud rate = Databit = Parity check = none Stopbit = 7 Select VT100 in the Emulation dropdown menu 8 Click OK The voltage of power supply can meet the requirements on the switch Booting the SwitchBefore powering on the Switch 7750, verify that Power cords have been properly connectedPlease check LEDs Booting the Switch 77503Com You can now begin the configuration for the SwitchMAINTAINING SOFTWARE The terminal displays the following information Downloading an Application to Flash Memory Selecting the Application File for the Boot 7 Type Y to run the primary image 60 CHAPTER 4 MAINTAINING SOFTWARE 2 Enter 3 in the download program menu 11 Change the protocol name for the download to Xmodem the 8-slot Chassis Lost PasswordsPress Ctrl+B. The system displays Using the BOOT Menu 66 CHAPTER 4 MAINTAINING SOFTWARE Troubleshooting TROUBLESHOOTINGTroubleshooting the ConfigurationTable 50 describes power LEDs on the Fabric. continued Troubleshooting the FanModules Troubleshooting theModule Replacing a Power ModuleMAINTAINING HARDWARE Module70 CHAPTER 6 MAINTAINING HARDWARE Replacing a Power SupplyReplacing the Fan AssemblyReplacing I/O Modules To replace an I/O module, you need 72 CHAPTER 6 MAINTAINING HARDWARE Access Software OBTAINING SUPPORT FOR YOUR B SWITCHto Gain Service ServicesContact Us Telephone TechnicalSupport and Repair Telephone Technical Support and Repair http//lat.3com.com/lat/support/form.htmlhttp//lat.3com.com/br/support/form.html latsupportanc@3com.com76 CHAPTER B OBTAINING SUPPORT FOR YOUR SWITCH This appendix covers the following types of cables and connectors SWITCH 7750 CABLESConsole Cable AUX CableFigure 46 The RJ-45 Connector ConnectorElectrical Port Figure 46 illustrates the RJ-45 connectorTable 56 RJ-45 MDI-X Port Pinouts ConnectorsFigure 47 SC Optical Fiber Connector Table 56 lists RJ-45 MDI-X Port Pin-outsFigure 49 LC Connector Figure 48. illustrates the MT-RJ fiber optic cable connectorFigure 49 illustrates the LC connector Figure 48 The MT-RJ Fiber Connector