TYAN TN70E-B7106 Service Engineer's Manual page 26

Rear I/O: Onboard LAN LED Color Definition
The three (3) onboard Ethernet ports have green and amber LEDs to indicate LAN
status. The chart below illustrates the different LED states.
10 Mbps
100 Mbps
1000 Mbps
No Link
10/100/1000 Mbps LAN Link/Activity LED Scheme
Link
Active
Link
Active
Link
Active
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Left LED
Green
Blinking Green
Green
Blinking Green
Green
Blinking Green
Off
26
Right LED
Off
Off
Green
Green
Amber
Amber
Off