D-Link DFE-500FX - Manual (Page 11)

DFE-500FX Fast Ethernet Adapter, with Fiber Optic Interface, for PCI Bus
Troubleshooting
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Troubleshooting
If you experience any problems with the adapter, first: ascertain that the
appropriate driver is loaded; that the proper grade of cable is employed for the
network connection; and that the supporting hub is properly qualified for the
application (such as 100Base-FX).
The DFE-500FX Adapter features four LED indicators:
•
FULL/HALF DUPLEX MODE
Steady green indicates the adapter is operating in Full Duplex mode. A
dark LED indicates the adapter is operating in Half Duplex mode.
•
LINK
Steady green indicates good linkage between the DFE-500FX and its
supporting hub.
•
ACTIVE
Flashing green indicates activity (transmitting or receiving) within the
adapter.
•
COLLISION
A yellow flash indicates data collisions in the segment. Intermittent
flashing of the collision LED is normal.