3Com Switch 4500 PWR 50-Port Work Light User Manual


 
Ethernet Port RJ-45 Pin Assignments 89
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-