OWNERS MANUAL Hub/Switch 1000

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PPENDIX

ROUBLESHOOTING

Diagnosing Switch Indicators

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

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.