The FastHub 112F LEDs facilitate troubleshooting during ongoing operation. 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
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