Intel DG41MJ Product Guide - Page 16

LAN Subsystem, LAN Connector LEDs, Table 4. LAN Connector LEDs

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Intel Desktop Board DG41MJ Product Guide LAN Subsystem The LAN subsystem includes: • Intel ICH7 • Realtek 8111D-GR Gigabit Ethernet Controller for operation at 10/100/1000 Mb/s • RJ-45 LAN connector with integrated status LEDs The subsystem features: • CSMA/CD protocol engine • LAN connect interface between ICH7 and the LAN controller • PCI bus power management Two LEDs are built into the RJ-45 LAN connector located on the back panel (see Figure 2). These LEDs indicate the status of the LAN. Figure 2. LAN Connector LEDs Table 4 describes the LED states when the board is powered up and the LAN subsystem is operating. Table 4. LAN Connector LEDs LED A (Link) B (Data Rate) LED Color Green N/A Green Yellow LED State Off On Blinking Off On On Indicates LAN link is not established. LAN link is established. LAN activity is occurring. 10 Mb/s data rate is selected. 100 Mb/s data rate is selected. 1000 Mb/s data rate is selected. 16

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Intel Desktop Board DG41MJ Product Guide
16
LAN Subsystem
The LAN subsystem includes:
•
Intel ICH7
•
Realtek 8111D-GR Gigabit Ethernet Controller for operation at 10/100/1000 Mb/s
•
RJ-45 LAN connector with integrated status LEDs
The subsystem features:
•
CSMA/CD protocol engine
•
LAN connect interface between ICH7 and the LAN controller
•
PCI bus power management
Two LEDs are built into the RJ-45 LAN connector located on the back panel (see
Figure 2).
These LEDs indicate the status of the LAN.
Figure 2.
LAN Connector LEDs
Table 4 describes the LED states when the board is powered up and the LAN
subsystem is operating.
Table 4. LAN Connector LEDs
LED
LED Color
LED State
Indicates
A (Link)
Off
LAN link is not established.
Green
On
LAN link is established.
Blinking
LAN activity is occurring.
N/A
Off
10 Mb/s data rate is selected.
Green
On
100 Mb/s data rate is selected.
B (Data
Rate)
Yellow
On
1000 Mb/s data rate is selected.