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Troubleshooting the Power System 51
4 Troubleshooting
Troubleshooting
the Power System
Fault: 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 the
items above, if the POWER LED is still OFF, please contact the agent.
Troubleshooting of
the Console
Ter min al
After the Power-On Self-Test (POST) of the router, if the system operates
normally, the start-up information should be displayed on the console
terminal. If the configuration system has some faults, the terminal may
not 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 any
information.
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 to
be the problem of the console cable or the terminal (e.g., the
HyperTerminal) parameters. Please check the cable or the parameters.