Figure 9. Lan Connector Led Locations; Table 12. 10/100 Ethernet Lan Connector Leds; Table 13. 10/100/1000 Lan Connector Led States; Rj-45 Lan Connectors With Integrated Leds - Intel S875WP1LX Specification

Functional Architecture
Additional features of the NIC subsystem include:
53 PCI bus master interface
54 CSMA/CD protocol engine
55 PCI power management
Supports ACPI technology
Supports LAN wake capabilities
3.9.1

RJ-45 LAN Connectors with Integrated LEDs

Two LEDs are built into each RJ-45 LAN connector (as shown in Figure 9). For the 82562ET
NIC, the yellow LED indicates a link to the LAN and the green LED indicates the connection
speed. Table 12 describes the LED states when the board is powered up and the 82562ET
10/100 Ethernet LAN subsystem is operating.

Table 12. 10/100 Ethernet LAN Connector LEDs

LED Color LED State
Green (left Off
LED)
On
Yellow Off
(right LED)
On (steady state)
On (brighter and pulsing)
Table 13 describes the LED states when the board is powered up and the 10/100/1000
Mbits/sec LAN subsystem is operating.

Table 13. 10/100/1000 LAN Connector LED States

LED Color
Left Green
Green
Right
Orange
34
10 Mbit/sec data rate is selected.
100 Mbit/sec data rate is selected.
LAN link is not established.
LAN link is established.
The computer is communicating with another computer on the
LAN.
Green LED Green/Orange LED

Figure 9. LAN Connector LED Locations

LED State
Off LAN link is not established.
On (steady state) LAN link is established.
On (brighter and pulsing) The computer is communicating with
another computer on the LAN.
Off 10 Mbit/sec data rate is selected.
On 100 Mbit/sec data rate is selected.
On 1000 Mbit/sec data rate is selected.
Indicates
OM15977
Condition
S875WP1-E TPS
Revision 4.0