Your Serial and Data Communications Expert
Shenzhen 3onedata Technology Co.,Ltd
Ethernet
Ethernet
Ethernet
Ethernet
interface:
interface:
interface:
interface:
2-port
Ethernet(RJ45)
interface
supports
MDI/MDI-X
auto
negotiation, can
use straight-through cable connect PC or server,
use across-over connect cable Switch or HUB.
MDI: PIN 1, 2, 3, 6 connects opposite.
MID-X: 1→3, 2→6, 3→1, 6→2
MDI/MDI-X 10Base-T/100Base-TX PIN define as follow:
Note
：“
TX
±”
Transfer data
±，“
RX
±”
Receive data
±，“—”
None
。
MDI:
MDI:
MDI:
MDI:
MDI-X:
MDI-X:
MDI-X:
MDI-X:
PIN
MDI
MDI-X
1
TX+
RX+
2
TX-
RX-
3
RX+
TX+
6
RX-
TX-
4
、
5
、
7
、
8
—
—
1
8
R J 4 5
T X +
T X -
T X -
R X +
R X +
R X -
R X -
T X +
2
3
6
1
2
3
6
1
1
8
R J 4 5
T X +
T X -
T X -
R X +
R X +
R X -
R X -
T X +
2
3
6
1
6
1
2
3
(T X -)
(R X + )
(R X -)
(T X + )
(T X + )
(T X -)
(R X + )
(R X -)
1
8
