3Com 2900 manual Task Remarks, Change the rate of the serial port on the terminal

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	Task		Remarks
			Required
	Set the download rate of the console port on the		Log in to the switch through the HyperTerminal
	switch		and then set the download rate of the console
			port on the switch.

			Optional
	Change the rate of the serial port on the terminal		Set the baud rate of the serial port on the terminal
			to be consistent with that of the console port on
			the switch.

	Establish a connection between the terminal and		Optional
	the switch using the changed rate
	Uploading an application file from the terminal to		Required
	Uploading an application file from the terminal to		Transmit a file from the terminal to the switch
	the switch		Transmit a file from the terminal to the switch
	the switch		using the changed connection rate.
			using the changed connection rate.

	Updating the Boot ROM file on the switch		Required
	Updating the Boot ROM file on the switch		Update the Boot ROM file on the switch.
			Update the Boot ROM file on the switch.

			Optional
	Restoring the download rate to the default		Set the baud rate of the serial port on the terminal
	Restoring the download rate to the default		to be consistent with the default rate of the
			to be consistent with the default rate of the
			console port on the switch.

	Restarting the switch to make the updated Boot		Required
	ROM file effective		Required
	ROM file effective

1)Enter the Boot ROM update menu on the switch

Enter the Boot ROM menu, and then enter 6 or press Ctrl + U after the system displays “Enter your choice(0-9):” to enter the Boot ROM update menu.

Enter your choice(0-9): 6

1.Update full BootRom

2.Update extended BootRom

3.Update basic BootRom

0.Return to boot menu

Enter your choice(0-3):

The items in the Boot ROM update menu are described in Table 5-2.

Table 5-2Description of the Boot ROM update menu

	Item	Description
1.	Update full BootRom	Update the complete Boot ROM file

2.	Update extended BootRom	Update the extended Boot ROM section

3.	Update basic BootRom	Update the basic Boot ROM section

0.	Return to boot menu	Return to the Boot ROM menu

2)Enter the protocol parameter setting menu

5-4

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Contents

3Com Baseline Switch 2900 Family Environmental Statement Organization About This ManualConventions Obtaining Documentation Related DocumentationManual Description 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 DistanceLEDs Power LEDRPS Status LED Port Ethernet port status Switch model Mode Meaning Port Mode LED10/100/1000Base-T Auto-Sensing Ethernet Port Status LED 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 Introduction to Mounting Brackets Installing a SwitchModel Mounting bracket Description Attaching the Mounting Brackets to a Switch Model Mounting position Description See -6 , FigureMounting the Switch to a Rack Page Connecting the Pgnd Cable Mounting the Switch on a WorkbenchWhen a Grounding Strip is Available Page Other Installation Sites Where a Grounding Conductor Can be BuriedWhen the switch is AC-powered 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 Checking Before Power-On Booting the SwitchPowering On the Switch 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 Files Through the Boot ROM Menu Approaches for Loading Application and Configuration Files Loading Software Introduction to the Boot ROM Menu Loading a Boot ROM file Loading Files Using Xmodem Through Console PortIntroduction to Xmodem 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 there is no terminal display Configuration Terminal FailureTroubleshooting when the terminal display is illegible