Rj-45 Lan Connector With Integrated Leds; Lan Connector Led Locations; Lan Connector Led States - Intel D2550DC2 Specification

Intel Desktop Board D2550DC2 Technical Product Specification
1.8.2

RJ-45 LAN Connector with Integrated LEDs

Two LEDs are built into the RJ-45 LAN connector (shown in Figure 4).
Table 4 describes the LED states when the board is powered up and the Ethernet LAN
subsystem is operating.
Table 4. LAN Connector LED States
LED
Link/Activity (A)
Link Speed (B)
24
Figure 4. LAN Connector LED Locations
LED Color LED State
Off
Green On
Blinking
Off
Green/Yellow Green
Yellow
Condition
LAN link is not established.
LAN link is established.
LAN activity is occurring.
10 Mb/s data rate is selected or negotiated.
100 Mb/s data rate is selected or negotiated.
1000 Mb/s data rate is selected or negotiated.