3com 3C17204 User Guide
RJ-45 Pin Assignments
83
Table 12 Pin assignments
Pin Number
10/100BASE-T
1000BASE-T
Ports configured as MDIX
1
Receive Data +
Bidirectional Data B+
2
Receive Data -
Bidirectional Data B-
3
Transmit Data +
Bidirectional Data A+
4
Not assigned
Bidirectional Data A-
5
Not assigned
Bidirectional Data D+
6
Transmit Data
Bidirectional Data D-
7
Not assigned
Bidirectional Data C+
8
Not assigned
Bidirectional Data C-
DUA1720-3AAA09.book Page 83 Wednesday, July 6, 2005 4:33 PM