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Troubleshooting
Link LED
The green Link LED indicates a valid connection to the network. If link LED
is not detected, there is a link failure and the LINK LED will be off. The ACT
(activity) functions of the adapter also will be disabled.
ACT (Activity) LED
The green ACT (Activity) LED indicates the activity (transmit data) status of
the adapter controller board. The LED should blink when data packets are
being transmitted from the cable.
100Mbps Operation LED
The green 100Mbps (100) LED indicates the configuration of the adapter for
100Mbps (100BASE-TX) operation.
State
Description
On
• Indicates that the link pulse is
established
Off
• No unshielded twisted-pair cable is
connected
• No power source to hub/switch
• Unshielded twisted-pair cable is
faulty
• Unshielded twisted-pair wire
exceeds the recommended length
State
Description
Blinking
• Data packets being transmitted
Off
• Power off
• No data packets being transmitted
State
Description
On
• Configured for 100Mbps operation.
Off
• Not configured for 100Mbps operation.