CME37786HX
RTD Embedded Technologies, Inc.
42
10/100 Base T and TX Connector, CN20
The functionality of this port is based on the INTEL 82559ER Fast Ethernet PCI controller. The
following table gives the pinout of CN18. The Ethernet controller can be disabled in the BIOS Set-
up.
Facing the connector the pinout is depicted below
Table 21: 10/100 Base T and TX Connector CN20
RJ45 Pin
10 PIN DIL
Pin
Signal Function
in/out
3
1
RX+
R
In
6
2
RX-
Receive -
In
1
5
TX+
Transmit +
Out
2
6
TX-
Transmit -
Out
4
3
CT
Termination
connected
to pin 4
5
4
CT
Termination
connected
to pin 3
7
7
CT
Termination
connected
to pin 8
8
8
CT
Termination
connected
to pin 7
--
9
AGND
Ground
--
10
AGND
Ground
9
7
5
3
1
AGND
CT
TX+
CT
RX+
AGND
CT
TX-
CT
RX-
10
8
6
4
2
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