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Troubleshooting
Monitoring LEDs
The following table describes how to troubleshoot problems with your net-
work and/or the hub by monitoring the hub’s LEDs.
Problem Action
Power LED is off ✔ Make sure the power adapter is connected
to the power outlet and is properly inserted
into the power connector on the hub.
✔ Determine if the outlet is functional by
plugging another device into the recepta-
cle.
Partition LED is
blinking con-
stantly
✔ Make sure the workstation cables do not
exceed the maximum length of 100 meters.
✔ Make sure the workstation cables meet
EIA/TIA 568B specifications for Category 5
wiring.
✔ Make sure the total network diameter does
not exceed the maximum 205 meters.
✔ Make sure there are no faulty Fast Ethernet
adapters or other equipment on the net-
work.
✔ Note: Collisions are normal in Fast Ether-
net networks; however, excessive colli-
sions may indicate that your network is
overly congested.