APPENDIX A
TROUBLESHOOTING
Diagnosing Switch Indicators
| Troubleshooting Chart |
|
|
Symptom | Action |
|
|
Power LED is Off | • Internal or redundant power supply has failed or |
| is disconnected. |
| • Check connections between the switch, the |
| power cord, the wall outlet, and the RPU if you |
| are using one. |
| • Contact SMC Technical Support. |
|
|
Link LED is Off | • Verify that the switch and attached device are |
| powered on. |
| • Be sure the cable is plugged into both the switch |
| and corresponding device. |
| • Verify that the proper cable type is used and its |
| length does not exceed specified limits. |
| • Check the adapter on the attached device and |
| cable connections for possible defects. Replace |
| the defective adapter or cable if necessary. |
|
|
Power and Cooling Problems
If the power indicator 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. 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 fans
