3Com 3CBLSG48 - Ethernet Port RJ-45 Pin Assignments

APPENDIX C: PIN-OUTS
195
10/100 and 1000BASE-T RJ-45 connections.
Table 10 Pin assignments
Pin Number 10/100 1000
Ports configured as MDI
1 Transmit Data + Bidirectional Data A+
2 Transmit Data − Bidirectional Data A−
3 Receive Data + Bidirectional Data B+
4 Not assigned Bidirectional Data C+
5 Not assigned Bidirectional Data C−
6 Receive Data − Bidirectional Data B−
7 Not assigned Bidirectional Data D+
8 Not assigned Bidirectional Data D−
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−
Ethernet Port RJ-45
Pin Assignments