3Com SuperStack 3 3CR17561-91 Getting Started Manual - page 117
Manual is about: Switch 4500 Family Switch 4500 26/50-Port Switch 4500 PWR 26/50-Port
of
134
Ethernet Port RJ-45 Pin Assignments
117
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-