Ethernet Interface; Bios Configuration; Status Led; Ethernet Connector - VersaLogic EPM-14 Cougar Reference Manual

Ethernet Interface

The EPM-14 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. See VersaLogic website for latest OS support.
BIOS C
ONFIGURATION
Ethernet interface 0 (J3) uses PCI interrupt INTA# and Ethernet interface 1 (J2) uses PCI
interrupt INTB#. CMOS Setup is used to select the IRQ line routed to each PCI interrupt line.
S LED
TATUS
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):
Yellow LED (Activity):
E C
THERNET ONNECTOR
Board-mounted RJ-45 connectors are provided to make connections with Category 5 Ethernet
cables. The 82551ER Ethernet controller auto-detects 10BaseT/100Base-TX connectors.
These connectors use IEC 61000-4-2-rated TVS components to help protect against ESD damage.
EPM-14 Reference Manual
ON Active Ethernet cable plugged in
OFF Active cable not plugged in
or cable not plugged into active hub
ON Activity detected on cable
OFF No Activity detected on cable
Table 15: RJ45 Ethernet Connector
J2/J3 Signal
Pin Name
1 T+
2 T-
3 R+
4 IGND
5 IGND
6 R-
7 IGND
8 IGND
Function
Transmit Data +
Transmit Data -
Receive Data +
Isolated Ground
Isolated Ground
Receive Data -
Isolated Ground
Isolated Ground
Interfaces and Connectors
35