3com 4070 Quick Setup Guide
RJ-45 Pin Assignments
77
Table 11 Pin assignments
Pin Number
10/100
1000
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-
DUA1770-9AAA04.book Page 77 Monday, April 14, 2003 11:33 AM