3Com 3CBLSG24 User Guide - Page 191
Ethernet Port RJ-45 Pin Assignments, Table 10
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Ethernet Port RJ-45 Pin Assignments 191 Ethernet Port RJ-45 Pin Assignments 10/100 and 1000BASE-T RJ-45 connections. Table 10 Pin assignments Pin Number 10/100 Ports configured as MDI 1 Transmit Data + 2 Transmit Data − 3 Receive Data + 4 Not assigned 5 Not assigned 6 Receive Data − 7 Not assigned 8 Not assigned 1000 Bidirectional Data A+ Bidirectional Data A− Bidirectional Data B+ Bidirectional Data C+ Bidirectional Data C− Bidirectional Data B− Bidirectional Data D+ Bidirectional Data D− Table 11 Pin assignments Pin Number 10/100 Ports configured as MDIX 1 Receive Data + 2 Receive Data − 3 Transmit Data + 4 Not assigned 5 Not assigned 6 Transmit Data − 7 Not assigned 8 Not assigned 1000 Bidirectional Data B+ Bidirectional Data B− Bidirectional Data A+ Bidirectional Data A− Bidirectional Data D+ Bidirectional Data D− Bidirectional Data C+ Bidirectional Data C−