Interfaces and Connectors
EBX-22 Reference Manual
47
Ethernet Interface
The EBX-22 features two Intel 82551ER Fast Ethernet controllers on-board. While these
controllers are not NE2000-compatible, they are widely supported. Drivers are readily available
to support a variety of operating systems.
BIOS
C
ONFIGURATION
Each Ethernet controller can be enabled or disabled in CMOS Setup. Ethernet interface 0 (J12)
uses PCI interrupt INTC#. CMOS Setup is used to select the IRQ line routed to each PCI
interrupt line. Ethernet interface 1 (J5) uses PCI interrupt INTD#.
S
TATUS
LED
Each Ethernet controller has a two-colored LED located next to its RJ-45 connector to provide an
indication of the Ethernet status as follows:
Green LED (Link):
ON
Active Ethernet cable plugged in
OFF
Active cable not plugged in
or cable not plugged into active hub
Yellow LED (Activity):
ON
Activity detected on cable
OFF
No Activity detected on cable
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