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