SICOM3024SM Industrial Ethernet Switch User Manual
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10Base-T/100Base-TX is listed in the table A-1.
Table A-1 Pin distribution of 10Base-T/100Base-TX
Pin
MDI-X signal name
MDI signal name
1
Receiving data
＋（
RD+
）
Output data
＋（
TD+
）
2
Receiving data
－（
RD-
）
Output data
－（
TD-
）
3
Output data
＋（
TD+
）
Receiving
data
＋（
RD+
）
6
Output data
－（
TD-
）
Receiving
data
－（
RD-
）
4
，
5
，
7
，
8
Unused Unused
Note: “+”“-”denoting cable polarity.
Definition of straight-through cable from RJ45 (8-pin) to RJ45 (8-pin)
Figure A-2 Cable sequence of straight-through cable
Definition of Cross-over cable from RJ45 (8-pin) to RJ45 (8-pin)
Figure A-3 Cable sequence of cross-over cable
