RTL8169S-32/RTL8169S-64
Datasheet
6.5.5.
LINK/ACT LED
In 10/100/1000Mbps mode, blinking of the LINK/ACT LED indicates that the RTL8169S is linked and
operating properly. When this LED is high for extended periods, it indicates that a link problem exists.
Power On
LED = High
No
Link?
Yes
LED = Low
No
Tx/Rx packet?
Yes
LED = High for (100 +- 10) ms
LED = Low for (12 +- 2) ms
Figure 6. LINK/ACT LED
Integrated Gigabit Ethernet Controller (NIC)
18
Track ID: JATR-1076-21 Rev. 1.7