Interfaces and Connectors
EPM-15 Reference Manual
36
Ethernet Interface
The EPM-15 features an on-board Ethernet controller. For the EPM-15g and h, the controller is
the Intel 82551ER Fast Ethernet controller. For the EPM-15S and E, the controller is the Intel
82541ER controller. While these controllers are not NE2000-compatible, they are widely
supported. Drivers are readily available to support a variety of operating systems. See VersaLogic
website for latest OS support.
BIOS
C
ONFIGURATION
The Ethernet interface (J4) uses PCI interrupt “INTB#”. The CMOS setup screen is used to select
the IRQ line routed to each PCI interrupt line.
S
TATUS
LED
The EPM-15 includes an on-board, two-colored LED 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
E
THERNET
C
ONNECTOR
A board-mounted RJ-45 connector is provided to make connection with a Category 5 Ethernet
cable. The Ethernet controller autodetects 10BaseT/100Base-TX connection speed. The interface
uses IEC 61000-4-2-rated TVS components to help protect against ESD damage.
