Doc.ID: 34938, Rev 1.0
Page A - 5
CP342
CP-RIO3-42
CUSTOMER SPECIFIC
P R E L I M A R Y
A.4
Gigabit Ethernet
The CP-RIO3-42 board includes two 10Base-T/
100Base-TX/1000Base-T Ethernet ports.
The Ethernet connectors are realized as RJ45 con-
nectors, but without operational status LEDs. The in-
terfaces provide automatic detection and switching
between 10Base-T, 100Base-TX and 1000Base-T
data transmission (Auto-Negotiation). Auto-wire
switching for crossed cables is also supported (Auto-
MDI/X).
RJ45 Connector J10A/B Pinouts
The J10A/B connector supplies the 10Base-T,
100Base-TX and 1000Base-T interfaces.
Table A-1: Pinouts of J10A/B Based on the Implementation
MDI / STANDARD ETHERNET CABLE
PIN
MDIX / CROSSED ETHERNET CABLE
10BASE-T
100BASE-TX
1000BASE-T
10BASE-T
100BASE-TX
1000BASE-T
I/O SIGNAL I/O SIGNAL I/O SIGNAL
I/O SIGNAL I/O SIGNAL I/O SIGNAL
O
TX+
O
TX+
I/O
BI_DA+
1
I
RX+
I
RX+
I/O
BI_DB+
O
TX-
O
TX-
I/O
BI_DA-
2
I
RX-
I
RX-
I/O
BI_DB-
I
RX+
I
RX+
I/O
BI_DB+
3
O
TX+
O
TX+
I/O
BI_DA+
-
-
-
-
I/O
BI_DC+
4
-
-
-
-
I/O
BI_DD+
-
-
-
-
I/O
BI_DC-
5
-
-
-
-
I/O
BI_DD-
I
RX-
I
RX-
I/O
BI_DB-
6
O
TX-
O
TX-
I/O
BI_DA-
-
-
-
-
I/O
BI_DD+
7
-
-
-
-
I/O
BI_DC+
-
-
-
-
I/O
BI_DD-
8
-
-
-
-
I/O
BI_DC-
Figure A-3: Dual Gigabit Ethernet
Connector J10A/B
8
1
8
1
J10B
J10A
LAN1
LAN2
