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RTL8111
Datasheet
6.2.4. Tx/Rx LED
In 10/100/1000Mbps mode, blinking of the Tx/Rx LED indicates that both transmit and receive activity is
occurring.
Power On
LED = High
No
Tx/Rx Packet?
Yes
LED = High for 40 ms
LED = Low for 40 ms
Figure 4. Tx/Rx LED
Integrated Gigabit Ethernet Controller for PCI Express 9
Track ID: JATR-1076-21 Rev. 1.2