Smc-networks 100 Manuel d'utilisateur télécharger pdf (Page 57)

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PPENDIX

ROUBLESHOOTING

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.

• If the switch is installed in a rack, check the

connections to the punch-down block and patch

panel.

• Contact SMC Technical Support.

Power LED is Flashing • The switch is either downloading firmware or

running the Power-On Self-Diagnostics Test

(POST). If this LED does not stop flashing, then

POST has failed, and you should 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.

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Smc-networks 100 Manuel d'utilisateur Page 57