Interfaces and Connectors
EBX-41 Reference Manual
32
eUSB
The Copperhead includes a 2 mm eUSB port at connector J36 on the bottom of the board. (Note
that connector J36 does not accept 2.54 mm modules.) The VersaLogic VL-F15 Series of eUSB
SSD modules are available in sizes of 2 GB or 4 GB. Contact
VersaLogic Sales
to order. eUSB
modules are secured to the on-board standoff using M2.5 x 6mm pan head Philips nylon screws.
These screws are available in quantities of 10 in the VL-HDW-108 hardware kit from
VersaLogic.
Table 11: eUSB Port Locations
J36
Pin
Signal
Name
Function
1
+5V
+5V Power Supply
2
NC
Not connected
3
D-
Data
–
4
NC
Not connected
5
D+
Data +
6
NC
Not connected
7
GND
Ground
8
NC
Not connected
9
Key
Physical key
10
LED
SSD LED
The blue LED at location D9 lights with activity on the eUSB port, if supported by the eUSB
module.
Ethernet
The Copperhead 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 J25 (Ethernet 0) and J24
(Ethernet 1). 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
THERNET
C
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.
