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Troubleshooting

Troubleshooting

The FastHub 112F LEDs facilitate troubleshooting during ongoing operation. Table 4-1 displays the potential problem symptoms, possible causes, and corrective actions.


Table  4-1: Troubleshooting
Symptom Possible Cause Corrective Action(s)

Power LED does not come on

Power switch off Turn on switch
Power cord not connected Plug in both ends of power cord
Fuse blown Replace fuse. If the problem recurs, contact Cisco or your authorized reseller
Other Contact Cisco or your authorized reseller

Link LED does not come on

No cable inserted Insert both ends of cable into a device
Device(s) not powered Ensure both devices have power
Bad cable Replace cable with known good one

Disabled LED blinks

Device at other end malfunctioning Investigate device at other end of cable from the disabled FastHub 112F port
Bad cable Replace cable with known good one

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