3com 2924-PWR User Manual
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Ethernet Port RJ-45 Pin Assignments
223
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
−