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3Com 6000 manual Troubleshooting of, the Power System, the Configuration, Symptom, Solution

Models: 6000

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Troubleshooting of the Power System 39

4 Troubleshooting

Troubleshooting of	Symptom:	The RUN LED on the PSU is OFF or blinking.
the Power System	Solution:	Check that:

	■ The power switch on the router is turned on.
	■ The switch of the power source is turned on.
	■ The power cord is correctly connected.
	■ The power source meets the requirement of the router. If the PSU is
	DC-input, check the AC/DC OK LED: solid ON means the input
	voltage is normal (85 to 264 V), off means the input voltage is
	abnormal.

Troubleshooting	If the router passes POST after powered up, the console screen displays
the Configuration	the startup banner; if faults occur to the configuration system, the
System	console screen displays nothing or only illegible characters.

Symptom 1: After the router is powered on, the console screen displays nothing.

Solution: Check that:

■The power system is normal.

■The console cable is correctly connected.

Check the console cable and the terminal (HyperTerminal for example) settings.

Symptom 2: After the router is powered on, the console screen displays illegible characters.

Solution: Verify that the terminal settings are as follows:

Baud: 9600

Data bits: 8

Image 39

3Com 6000 manual Troubleshooting of, the Power System, the Configuration, Symptom, Solution

Contents

Getting Started Guide 3Com Router 6000 FamilyEnd of Life Statement 3Com Corporation 350 Campus Drive Marlborough MAUNITED STATES GOVERNMENT LEGEND ENVIRONMENTAL STATEMENTPage Page 1 Introducing the Router 6000 Family ContentsContents About This Guide 2 InstallationA Obtaining Support for Your 3Com Products 3 Starting and Configuring the RouterTroubleshooting Router Software MaintenanceAbout This Guide Related Router 5000/6000 Configuration GuideRouter 5000/6000 Command Reference Guide ConventionsComments network supplierDocumentation 10About This Guide About the Router1Introducing the Router 6000 Family RADIUS 3Com Router 3Com RouterFigure 1 Front panel of the 3Com Router Figure 4 Rear panel of the 3Com Router 3Com RouterSystem Description 3Com Router3Com Router Boot ROM stores the boot program files The RPU ModuleSpecifications The RPU Module Indicators and ButtonTable 3 RPU Indicator LEDs and button Figure 6 Front panel of the RPUBoot ROM stores the boot program files The RPU2 ModuleLED and button Figure 8 Front panel of RPU2Table 5 RPU2 LEDs and the button The RPU2 ModuleFigure 9 Router 6000 PSU FAN module Auto-ConfigAuto Detect 2 Installation Rack-MountingtheRouter Power Cords Grounds and Cables Mounting the Router on a TabletopPGND Wire Figure 13 PGND screw on the chassis Console port Console Terminal CableRouter to LAN Connection AC power socket recommendedEthernet cable AUX cable Router to WANConnection AUX portSetting up a Configuration Environment 3Starting and Configuring the Router30Chapter 3 Starting and Configuring the Router Figure 19 Set up a new connectionSetting up a Configuration Environment Flow control = noneFigure 20 Set the connection port 5Click OK . The HyperTerminal dialog box appears 6Select Properties9Click OK Powering on the Router Checking before power-onPowering on the router Checking/Operating after power-on The banner varies by Boot ROM versionPress Enter . The console screen displays Router Configurationrouter, refer to V2.41 Configuration Guide BasicsCommand line interface 2Interface numbering Troubleshooting 4 TroubleshootingTroubleshooting of the Power SystemTroubleshooting Application Image Upgrade Correctly assign an IP address to the PC Download the correct application image file 42Chapter 4 TroubleshootingMaintaining RPU or RPU2 Software 5Router Software Maintenance44Chapter 5 Router Software Maintenance 5Display applications in Flash memory Press Enter to return to Boot Menu Upgrading the application image Figure 26 Load the file using Xmodem 48Chapter 5 Router Software MaintenanceFigure 25 Set Send File parameters Upgrading the entire Boot ROM program Backing Up/Restoring the Extended Segment of the Boot ROM ImageFlash Using TFTPUpgrading the Application ImageNow, the system returns to Net Port Download Menu Press Y to save the configurationLoss Router Passwordcontinues its boot process Dealing with a54Chapter 5 Router Software Maintenance Product to Gain Service BenefitsSolve Problems Online Register YourPurchaseExtended Warranty andServices Access SoftwareContact Us Telephone TechnicalSupport and Repair Telephone Number CountryTelephone Number CountryCountry Contact UsCountry Telephone Number