Manuals / 3Com / Computer Equipment / Switch

3Com 3C16897 8-slot DC Chassis, 3C16895 7-slot Chassis manual Type Y to run the primary image

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

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Upgrading Software 59

The file you selected is SW7750-V300R-.app, are you sure? Yes or No(Y/N) y

On reboot,SW7750-V300R-.app will become the default application file to boot!

7Type Y to run the primary image:

Do you want to run snec400.app now? Yes or No(Y/N)? Y

No Backup Image If you do not enter the number of a backup boot file, the following text displays:

Please input the backup boot file number :

Input Error!

Failed to select backup image file!

Type Y to run the primary boot file:

Do you want to run snec400.app now? Yes or No(Y/N)? Y

Backup Image Fails If the backup image fails and another backup image configuration does not exist, the Switch 7750 will try to find any valid image on the flash. This image is not the primary or backup image:

All Images Fail If all images fail, the Switch 7750 will return to the boot menu:

primary image : snec400.app
backup image : SW7750-V300R-.app
There is one passed image in addition:
File Number	File Size(bytes)	File Name
========================================================
1.	6256229	SW7750-V300RE-8016.app

Press Ctrl+B to enter Boot Menu... 0

Auto-booting....................

Auto booting file is snec400.app

No LPU application file < vxworks.app > in flash

Please download LPU application file vxworks.app to flash

No correct main file to boot!

loading backup image file to boot!

Auto booting backup file is SW7750-V300R-.app

Image 59

3Com 3C16897 8-slot DC Chassis, 3C16895 7-slot Chassis, 3C16894 4-slot Chassis manual Type Y to run the primary image

Contents

3C16895 7-slot Chassis 3C16894 4-slot Chassis and associated modules 3Com Family Switch 7750 Installation Guide3C16896 8-slot AC Chassis 3C16897 8-slot DC Chassis 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 Backplane SWITCH 7750 COMPONENTSSwitch Chassis 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 12-port 1000BASE-X SFP and 4-port 10/100/1000BASE-T Module 3C186917 I/O Modules12-port 10/100/1000BASE-T and 4-port 1000BASE-X SFP Module 3C168916 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 continuedGeneral Safety Recommendations INSTALLING THE SWITCHPreparing to Install Temperature and Humidity Electrical SafetyMoving the Switch Laser SafetyLightning Damage Static ElectricityElectromagnetic Discharge Workbench Installing the CablingRack CabinetSubmodule Installing a ModuleInstalling a Configuring Power Connecting theGround Wire Connecting andCords Connecting DC Power To connect DC power cords, do the followingFigure 35 Front Panel of the PoE Rack Power CordFigure 34 Back of the PoE Rack Installing Cables Installing the FanAssembly SC fiber connector Cables Connecting Electrical Port CablesConnecting Optical Fiber Cables 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 I/O Modules To replace an I/O module, you need Replacing the FanAssembly 72 CHAPTER 6 MAINTAINING HARDWARE Access Software OBTAINING SUPPORT FOR YOUR B SWITCHto Gain Service ServicesSupport and Repair Contact UsTelephone Technical 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