Rabbit BL2600, User Manual

Page: 34 / 116

28 SBC BL2600
3.3.4 Ethernet Port
Figure 16 shows the pinout for the Ethernet port (J4 on the BL2600 module). Note that
there are two standards for numbering the pins on this connector—the convention used
here, and numbering in reverse to that shown. Regardless of the numbering convention
followed, the pin positions relative to the spring tab position (located at the bottom of the
RJ-45 jack in Figure 16) are always absolute, and the RJ-45 connector will work properly
with off-the-shelf Ethernet cables.
Figure 16. RJ-45 Ethernet Port Pinout
Two LEDs are placed next to the RJ-45 Ethernet jack, one to indicate an Ethernet link
(
LNK
) and one to indicate Ethernet activity (
ACT
).
The RJ-45 connector is shielded to minimize EMI effects to/from the Ethernet signals.
ETHERNET
RJ-45 Plug
1. E_Tx+
2. E_Tx–
3. E_Rx+
6. E_Rx–
1
8
RJ-45 Jack