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3Com 3C16894 4-slot Chassis manual Installing the Fan, Assembly, Installing Cables

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

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Installing the Fan

Installing the Fan Assembly

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Installing the Fan	To install the fan:
Assembly

1Wear an antistatic wrist strap.

2Remove the fan frame from the pack.

3Hold the ejector levers on the fan frame with both hands and push them outward.

4Align the fan with the guides in the chassis and slide it gently into the slot.

5Push the fan until its positioning pin touches the hole in the chassis.

6Push the ejector levers inward.

7Push the handle bar pin into the hole in the chassis.

WARNING: To avoid injury, do not touch any naked wire, terminal, or any other part of the product labelled Dangerous Voltage. Always wear the antistatic wrist strap when installing the fan.

Installing Cables	This section describes how to connect console and AUX cables to the Switch
	7750.

Connecting the Console The console cable is an 8-core shielded cable. One end of the cable has a crimped Cable RJ-45 connector, which is plugged into the console port of the switch. The other end has both a DB-9-hole connector and a DB-25-hole connector for connection

to a 9-hole or 25-hole serial port at the configuration terminal.

See “Console Cable” on page 77 for cable illustration and pinout details.

To connect a terminal or PC to the Switch 7750 using the console cable:

1Plug the DB-9 or DB-25 female plug of the console cable to the serial port of the PC or the terminal where the switch is to be configured.

2Connect the RJ-45 connector of the console cable to the console port of the switch.

Connecting the AUX An AUX cable is used to connect the Switch 7750 to a modem in a remote dial-up Cable configuration.

The AUX cable is an 8-core shielded cable. One end of the cable is an RS-232 RJ-45 connector, which is used to plug into the switch at the console port. The other end has both a DB-9-pin connector and a DB-25 pin for connection to a 9-hole or 25-hole serial port on the virtual modem.

See “AUX Cable” on page 77 for cable illustration and pinout details.

To connect the AUX cable:

1Plug the RJ-45 end of the AUX cable into the switch console port.

2Connect the DB-25 or DB-9 end of the AUX cable to the serial port of the virtual modem.

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3Com 3C16894 4-slot Chassis, 3C16895 7-slot Chassis manual Installing the Fan, Assembly, Installing Cables

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 350 Campus Drive 3Com CorporationMarlborough, MA 01752-3064SWITCH 7750 COMPONENTS CONTENTSINSTALLING THE SWITCH CONFIGURING THE SWITCHOBTAINING SUPPORT FOR YOUR SWITCH TROUBLESHOOTINGMAINTAINING SOFTWARE MAINTAINING HARDWAREConventions ABOUT THIS GUIDERelated Documentation6 ABOUT THIS GUIDE SWITCH 7750 COMPONENTS Switch ChassisSwitch Backplane Fabric Module Table 3 Fabric Specifications Table 3 lists Fabric specificationsFigure 3 illustrates the front panel of the Fabric Figure 3 Fabric1000BASE-X-SFP Ports Compact Flash CF PortEthernet Port Console PortReset Button Power LEDsFabric 32 Submodules Module LEDs4-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 Cables and maximum Table 21 Specifications for the 48-Port 10/100BASE-TX FE ModuleCables are 2 100-ohm Category-5 twisted pairs up to 100 m 300 ft transmission distanceModule 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 Power Distribution Power ModuleExternal PoE Power SystemFan Assembly Table 46 provides detailed information about features of the Switch Switch 7750 SpecificationsFigure 31 Fan Assembly Table 46 Specifications for the Switch 7750 System36 CHAPTER 1 SWITCH 7750 COMPONENTS Table 46 Specifications for the Switch 7750 System continuedINSTALLING THE SWITCH Preparing to InstallGeneral Safety Recommendations Moving the Switch Electrical SafetyLaser Safety Temperature and HumidityStatic Electricity Electromagnetic DischargeLightning Damage Rack Installing the CablingCabinet WorkbenchInstalling a Module Installing aSubmodule Ground Wire Connecting theConnecting and Configuring PowerCords 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 CablingChecklist Post-installationInstallation Checklist operates correctlyConfiguring the CONFIGURING THE SWITCHSwitch 7750 and a Setting TerminalBaud rate = Databit = Parity check = none Stopbit = 7 Select VT100 in the Emulation dropdown menu 8 Click OK Before powering on the Switch 7750, verify that Booting the SwitchPower cords have been properly connected The voltage of power supply can meet the requirements on the switchPlease 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 the TROUBLESHOOTINGConfiguration TroubleshootingModules Troubleshooting the FanTroubleshooting the Table 50 describes power LEDs on the Fabric. continuedMAINTAINING HARDWARE Replacing a Power ModuleModule 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 to Gain Service OBTAINING SUPPORT FOR YOUR B SWITCHServices Access SoftwareContact Us Telephone TechnicalSupport and Repair http//lat.3com.com/br/support/form.html http//lat.3com.com/lat/support/form.htmllatsupportanc@3com.com Telephone Technical Support and Repair76 CHAPTER B OBTAINING SUPPORT FOR YOUR SWITCH Console Cable SWITCH 7750 CABLESAUX Cable This appendix covers the following types of cables and connectorsElectrical Port ConnectorFigure 46 illustrates the RJ-45 connector Figure 46 The RJ-45 ConnectorFigure 47 SC Optical Fiber Connector ConnectorsTable 56 lists RJ-45 MDI-X Port Pin-outs Table 56 RJ-45 MDI-X Port PinoutsFigure 49 illustrates the LC connector Figure 48. illustrates the MT-RJ fiber optic cable connectorFigure 48 The MT-RJ Fiber Connector Figure 49 LC Connector