3Com 3016 (3C13616), 3015 (3C13615), 3013 (3C13613) manual Troubleshooting, Power LED is Off

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TROUBLESHOOTING

The Power LED is Off.

If the power LED is off, verify that:

■The power switch of the router is turned on.

■The power supply switch is turned on.

■The power cord of the router is connected properly.

■The power supply suits the requirement of the router.

CAUTION: Do not plug in or unplug the power cord when the power is on. After having checked the conditions in the previous list, if the power LED is still off, contact your Service representative.

Nothing is Displayed on the Terminal after Power-On

After the system runs the power-on self-test (POST), if the system operates normally, the start-up information is displayed on the console terminal. If the configuration system has a fault, the terminal may display nothing.

If the terminal does not display any information after the POST, verify that:

■The power system is operating normally.

■The console cable is connected correctly.

If the power system is normal and the console cable is connected properly, there may be something wrong with the console cable or the HyperTerminal parameters. Check the cable or the parameters.

HyperTerminal parameters should have the following values:

■Baud — 9600

■Data bits — 8

■Stop bit — 1

■Parity — None

■Flow control — None

■Terminal emulation — VT100

If the parameter settings do not match these values, reconfigure them.

If the previous checks do not solve the problem, contact your Service representative and follow the representative’s instructions.

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Contents Router 3000 Family Installation Guide Campus Drive 3Com CorporationMarlborough, MA 01752-3064Contents T1 Cable Console Cable AUX Cable Ethernet CableConventions About this GuideList conventions that are used throughout this guide Text ConventionsExamples Router Introducing the Router FamilyRouter 3012 LEDs System Specifications for the RouterLists attributes of the console port Console PortAUX Port Lists attributes of the AUX portEthernet Port Router 3013Lists attributes of the Ethernet port Synchronous/Asynchronous Serial PortRouter 3013 Description Router 3015 Description System Specifications for the Router 3013 and RouterSerial Router 3013 and Router 3015 LEDsEIA/TIA-23 Isdn S/T and Isdn U Ports Router 3016Lists attributes of the Isdn S/T and Isdn U ports Attributes of Isdn S/T and U PortsRouter 3016 Description Router 3018 Description System Specifications for the Router 3016 and RouterT1-ACT/E1-ACT Router 3016 LEDsLists attributes of the CT1/PRI and and E1/CE1/PRI ports CT1/PRI and E1/CE1/PRI PortsAttributes of the Ethernet Port Attributes of the CT1/PRI PortIsdn PRI Installing the Router Dust Temperature and HumidityGases Static ElectricityLightning Damage Electromagnetic DischargeBottom of the Router Connecting Installing the RouterWire On a WorkbenchTerminal To the ConsoleTo the Ethernet Connecting the Router to the WAN Installing the Router Verifying InstallationInstalling the Router Connecting the Router Booting and Configuring RouterSetting To a Local ConsoleConnection Description Dialog Box Parity None Stop bits Set the following parameters Bits per second 9600 Data bitsHyperTerminal Window Startup Process Powering on RouterInformation displays on the terminal screen Configuration Online help, available by typing ? at any time Help for the Configuration Maintaining the Router Software MaintenanceXmodem Protocol DownloadingSend File Dialog Box Protocol Creating the Tftp Upgrade ConfigurationTerminal displays the following menu Applications with the copy from Tftp ProtocolPress Enter. The following information displays Configuring the RouterCreating a Local FTP Upload/Download Configuration Using FTPUpgrading the Application UploadingCreating a Remote FTP Upload/Download Configuration Add the user name and passwordFTP server ready on R3000 at User10.110.10.10none R3000 quit R3000 save Router Chassis HardwaretoolsCover Boot ROM LocationMaintaining the Router Power LED is Off TroubleshootingNothing is Displayed on the Terminal after Power-On Illegible Characters Power-OnDisplay on Terminal afterConsole Cable Optional Cable SpecificationsAUX Cable Describes the console cable pinouts Console Cable PinoutsDescribes the AUX cable pinouts AUX Cable Pinouts Ethernet CableThat uses category-5 twisted pair cable, as shown in Figure Describes crossover network cable pinouts Serial Port CableStraight-through Network Cable Pinouts Crossover Network Cable PinoutsCable Pinouts DTE and DCE modeTypical DTE and DCE EIA/TIA-232 Maximum Transmission Baud Rate bps Distance m24 EIA/TIA-232 DCE illustrates the V.24 DCE cable Describes V.24 EIA/TIA-232 DTE cable pinoutsDescribes V.24 EIA/TIA-232 DCE cable pinouts 24 EIA/TIA-232 DTE Cable PinoutRTS/CTS CTS/RTS DTR/DSR LL/DCD DTE Cable Pinouts illustrates the V.35 DTE cable DB-50 Signal Signal DirectionDescribes V.35 DTE cable pinouts DCE Cable Pinouts illustrates the V.35 DCE cableDescribes V.35 DCE cable pinouts 35 DCE cable Pinouts Signal DB-50 DirectionDTE Cable Pinouts illustrates the X.21 DTE cable DCE Cable Pinouts illustrates the X.21 DCE cable Describes X.21 DTE cable pinoutsDescribes X.21 DCE cable pinouts 21 DTE Cable PinoutsEIA/TIA-449 DTE Cable illustrates the EIA/TIA-449 DTE cable DB50 Signal Signal Direction DB37Pinouts Describes EIA/TIA-449 DTE cable pinoutsEIA/TIA-449 DCE Cable illustrates the EIA/TIA-449 DCE cable EIA/TIA-449 DCE Cable AssemblyEIA-530 DTE Cable illustrates the EIA-530 DTE cable DB50 Signal Signal Direction DB25Describes EIA-530 DTE cable pinouts EIA-530 DTE Cable PinoutsIsdn BRI Cables T1 CableDescribes T1 cable pinouts Describes Isdn S/T port cable pinoutsIsdn U Port Cable Obtaining Support for Your Router Telephone Technical Contact UsSupport and Repair US and Canada Telephone Technical Support and Repair Latin America Telephone Technical Support and RepairAppendix B Obtaining Support for Your Router