TROUBLESHOOTING
Port Diagnostic Tests
Port Diagnostic Tests, the second diagnostic test phase, check each port. The following table details port failures, which are indicated in the column of the LED array corresponding to the malfunctioning port:
Port Failures
Test Failure | LED Array Row |
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|
Output Queue RAM Test | Tx/Rx |
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|
Input Queue RAM Test | 100Mbps |
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|
Routing Table Test | |
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|
Port IC Test | Select/Link |
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|
System Diagnostics
Power and Cooling Problems
If the Power LED does not turn on when the power cord is plugged in, you may have a problem with the power outlet, power cord or internal power supply as explained in the previous section. However, if the unit powers off after running for a while, check for loose power connections, power losses or surges at the power outlet, and verify that the fan on back of the unit is unobstructed and running prior to shutdown. If you still cannot isolate the problem, then the internal power supply may be defective. In this case, contact SMC Technical Support for assistance.
Installation
Verify that all system components have been properly installed. If one or more components appear to be malfunctioning (e.g., the power cord or network cabling), test them in an alternate environment where you are sure that all the other components are functioning properly.
