3Com 2900 manual Mounting the Switch to a Rack

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Figure 3-6Install a four-holed mounting bracket on the chassis (front mounting)

Figure 3-7Install a four-holed mounting bracket on the chassis (center mounting)

Figure 3-8Install a four-holed mounting bracket on the chassis (rear mounting)

Mounting the Switch to a Rack

Step1 Put on an ESD-preventive wrist strap and make sure the rack is well grounded and is firm enough to hold the switch and cables.

Step2 Attach the mounting brackets to the switch. For details, refer to “Attaching the Mounting Brackets to a Switch” on page 3-2.

Step3 Hold the bottom of the switch and gently place the switch on the rack to a proper location with one person.

Step4 Fix the mounting brackets with screws (anti-rust screws prepared by yourself) with another person to install the switch to the rack horizontally.

3-4

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Contents 3Com Baseline Switch 2900 Family Environmental Statement Conventions About This ManualOrganization Manual Description Related DocumentationObtaining Documentation Table of Contents Page Product Overview IntroductionPage Front Panel 3Com Baseline Switch 2920-SFP PlusPower Supply System Rear Panel3Com Baseline Switch 2928-SFP Plus 3Com Baseline Switch 2952-SFP Plus 3Com Baseline Switch 2928-PWR Plus 3Com Baseline Switch 2928-HPWR Plus Console Port SpecificationPorts 10/100/1000Base-T Ethernet PortFiber Transceiver Central Connector Type1000Base-X SFP Interface Max Transmis Sion DistanceRPS Status LED Power LEDLEDs 10/100/1000Base-T Auto-Sensing Ethernet Port Status LED Port Mode LEDPort Ethernet port status Switch model Mode Meaning LED 1000Base-X SFP Interface Status LED Installation Site Installation PreparationsSafety Precautions Temperature/HumidityDust concentration limit in the equipment room Laser SafetyElectromagnetic Susceptibility Gas Maximum concentration mg/mInstallation Tools Model Mounting bracket Description Installing a SwitchIntroduction to Mounting Brackets Attaching the Mounting Brackets to a Switch Model Mounting position Description See -6 , FigureMounting the Switch to a Rack Page When a Grounding Strip is Available Mounting the Switch on a WorkbenchConnecting the Pgnd Cable Page When the switch is AC-powered Where a Grounding Conductor Can be BuriedOther Installation Sites Connecting the Power Cord Connecting an AC Power CordVerifying the Installation Connecting an RPS DC Power CordPage Connecting the Console Cable Initial Power-OnSetting Up the Configuration Environment RJ-45 Signal Direction DB-9Setting Terminal Parameters Connection Procedure4Set the serial port used by the HyperTerminal connection 6HyperTerminal window Powering On the Switch Booting the SwitchChecking Before Power-On Describes the fields above 2Description on the fields Changing the Boot Mode Enter 9. The system prompts you to change the startup modeEnter Y. The system displays the following information User interface aux0 is available Press Enter to get started Loading Software Approaches for Loading Application and Configuration FilesLoading Files Through the Boot ROM Menu Introduction to the Boot ROM Menu Introduction to Xmodem Loading Files Using Xmodem Through Console PortLoading a Boot ROM file Task Remarks Change the rate of the serial port on the terminalDescription Page 2Properties dialog box 5Transfer menu Restoring the download rate to the default Page Loading Files Using Tftp Through Ethernet Port Introductin to TftpLoad File Name Loading an application file Loading Files Using FTP Through Ethernet Port Introduction to FTPParameters are described in Table 5Description of the FTP parameters Loading an application file User Password Loss Maintenance and TroubleshootingPassword Loss Boot ROM Password LossWith RPS power input Power Supply FailureWith AC power input With both AC and RPS power suppliesTroubleshooting when the terminal display is illegible Configuration Terminal FailureTroubleshooting when there is no terminal display