3Com 2900 manual 3Com Baseline Switch 2928-HPWR Plus

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3Com Baseline Switch 2928-HPWR Plus

Front Panel

Figure 1-93Com Baseline Switch 2928-HPWR Plus front panel

(1)	10/100/1000Base-T auto-sensing Ethernet port	(2)	Port status LED mode switching button
(3)	RPS status LED (RPS)	(4)	Port status LED
(5)	Power LED (Power)	(6)	Port mode LED
(7)	Console port	(8) Port 1000Base-X SFP interface

Rear Panel

Figure 1-103Com Baseline Switch 2928-HPWR Plus rear panel

(1)	Screw hole of the plug	(2) AC receptacle
(3)	Grounding screw	(4) DC power receptacle

Power Supply System

The 3Com Baseline Switch 2928-HPWR Plus can adopt AC power input, or DC power input, or both to provide backup

zAC power input:

Rated voltage range: 100 VAC to 240 VAC, 50 Hz or 60 Hz

Input voltage range: 90 VAC to 264 VAC, 47 Hz or 63 Hz

zDC power input

Rated voltage range: –52 VDC to –55 VDC

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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 Introduction Product OverviewPage Power Supply System 3Com Baseline Switch 2920-SFP PlusFront Panel 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 Ports SpecificationConsole Port 10/100/1000Base-T Ethernet Port1000Base-X SFP Interface Transceiver Central Connector TypeFiber 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 Safety Precautions Installation PreparationsInstallation Site Temperature/HumidityElectromagnetic Susceptibility Laser SafetyDust concentration limit in the equipment room Gas Maximum concentration mg/mInstallation Tools Introduction to Mounting Brackets Installing a SwitchModel Mounting bracket Description Attaching the Mounting Brackets to a Switch See -6 , Figure Model Mounting position DescriptionMounting 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 an AC Power Cord Connecting the Power CordConnecting an RPS DC Power Cord Verifying the InstallationPage Setting Up the Configuration Environment Initial Power-OnConnecting the Console Cable RJ-45 Signal Direction DB-9Connection Procedure Setting Terminal Parameters4Set 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 Enter 9. The system prompts you to change the startup mode Changing the Boot 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 FilesLoading Software Introduction to the Boot ROM Menu Loading a Boot ROM file Loading Files Using Xmodem Through Console PortIntroduction to Xmodem Change the rate of the serial port on the terminal Task RemarksDescription Page 2Properties dialog box 5Transfer menu Restoring the download rate to the default Page Introductin to Tftp Loading Files Using Tftp Through Ethernet PortLoad File Name Loading an application file Introduction to FTP Loading Files Using FTP Through Ethernet PortParameters are described in Table 5Description of the FTP parameters Loading an application file Password Loss Maintenance and TroubleshootingUser Password Loss Boot ROM Password LossWith AC power input Power Supply FailureWith RPS power input With both AC and RPS power suppliesTroubleshooting when there is no terminal display Configuration Terminal FailureTroubleshooting when the terminal display is illegible