3Com 3C13751 Getting Started Manual

Also see for 3C13701: Installation guide Quick reference guide Installation guide Installation guide Module guide

3Com 3C13751 Getting Started Manual Manual pdf 51 page image

Troubleshooting the Power System 514 TroubleshootingTroubleshootingthe Power SystemFault: POWER LED is OFF or blinking.Troubleshooting: Check:■ Whether the power switch of the router is turned on.■ Whether the power supply switch is turned on.■ Whether the power cord of the router is properly connected.■ Whether the power supply matches the requirement of the router.CAUTION: Do not hot swap the power cord. After having checked theitems above, if the POWER LED is still OFF, please contact the agent.Troubleshooting ofthe ConsoleTerminalAfter the Power-On Self-Test (POST) of the router, if the system operatesnormally, the start-up information should be displayed on the consoleterminal. If the configuration system has some faults, the terminal maynot display anything or may display only illegible characters.Troubleshooting of “nothing being displayed on the terminal”Fault: After the POST of the router, the terminal does not display anyinformation.Troubleshooting: Check:■ Whether the power system is normal.■ Whether the console cable is connected correctly.If no problems are found after performing the above checks, it is likely tobe the problem of the console cable or the terminal (e.g., theHyperTerminal) parameters. Please check the cable or the parameters.