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

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3Com Baseline Switch 2928-PWR Plus

Front Panel

Figure 1-73Com Baseline Switch 2928-PWR Plus front panel

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

Rear Panel

Figure 1-83Com Baseline Switch 2928-PWR Plus rear panel

(1) AC receptacle

(2) Grounding screw

Power Supply System

AC 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

Cooling System

The 3Com Baseline Switch 2928-PWR Plus is equipped with three fans for heat dissipation.

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Contents 3Com Baseline Switch 2900 Family Environmental Statement About This Manual OrganizationConventions Related Documentation Obtaining DocumentationManual Description Table of Contents Page Product Overview IntroductionPage 3Com Baseline Switch 2920-SFP Plus Power Supply SystemFront 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 Specification PortsConsole Port 10/100/1000Base-T Ethernet PortTransceiver Central Connector Type 1000Base-X SFP InterfaceFiber Max Transmis Sion DistancePower LED LEDsRPS Status LED Port Mode LED Port Ethernet port status Switch model Mode Meaning10/100/1000Base-T Auto-Sensing Ethernet Port Status LED LED 1000Base-X SFP Interface Status LED Installation Preparations Safety PrecautionsInstallation Site Temperature/HumidityLaser Safety Electromagnetic SusceptibilityDust concentration limit in the equipment room Gas Maximum concentration mg/mInstallation Tools Installing a Switch Introduction to Mounting BracketsModel Mounting bracket Description Attaching the Mounting Brackets to a Switch Model Mounting position Description See -6 , FigureMounting the Switch to a Rack Page Mounting the Switch on a Workbench Connecting the Pgnd CableWhen a Grounding Strip is Available Page Where a Grounding Conductor Can be Buried Other Installation SitesWhen the switch is AC-powered Connecting the Power Cord Connecting an AC Power CordVerifying the Installation Connecting an RPS DC Power CordPage Initial Power-On Setting Up the Configuration EnvironmentConnecting the Console Cable RJ-45 Signal Direction DB-9Setting Terminal Parameters Connection Procedure4Set the serial port used by the HyperTerminal connection 6HyperTerminal window Booting the Switch Checking Before Power-OnPowering 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 Approaches for Loading Application and Configuration Files Loading Files Through the Boot ROM MenuLoading Software Introduction to the Boot ROM Menu Loading Files Using Xmodem Through Console Port Loading a Boot ROM fileIntroduction 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 Maintenance and Troubleshooting Password LossUser Password Loss Boot ROM Password LossPower Supply Failure With AC power inputWith RPS power input With both AC and RPS power suppliesConfiguration Terminal Failure Troubleshooting when there is no terminal displayTroubleshooting when the terminal display is illegible