Ethernet Interface (J12, J15); Ethernet Connectors - VersaLogic VL-EBX-37 Reference Manual

Ethernet Interface (J12, J15)

The VL-EBX-37 features two on-board Intel 82574IT Gigabit Ethernet controllers. The
controllers provide a standard IEEE 802.3 Ethernet interface for 1000Base-T, 100Base-TX, and
10Base-T applications. RJ45 connectors are located at locations J12 (Ethernet 1) and J15
(Ethernet 2). While these controllers are not NE2000-compatible, they are widely supported.
Drivers are readily available to support a variety of operating systems. These interfaces are
protected against ESD damage.
E C
THERNET ONNECTORS
Two board-mounted RJ45 connectors are provided to make connection with Category 5 or 6
Ethernet cables. The 82574IT Ethernet controller auto-negotiates connection speed. These
interfaces use IEC 61000-4-2-rated TVS components to help protect against ESD damage.
The RJ45 connectors have two built-in LEDs to provide an indication of the Ethernet status as
shown in the following table.
EBX-37 Reference Manual
Table 9: RJ45 Connector Status LEDs
LED State
Green/Orange Orange
(Link Speed)
Green
Off
Yellow (Activity) On
Off
Description
1 Gbps speed
100 Mbps speed
10 Mbps speed or cable not
connected
Cable connected (intermittent with
activity)
Cable not connected
Interfaces and Connectors
30