Ethernet Port RJ-45 Pin Assignments 191Ethernet Port RJ-45Pin Assignments10/100 and 1000BASE-T RJ-45 connections.Table 10 Pin assignmentsTable 11 Pin assignmentsPin Number 10/100 1000Ports configured as MDI1 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−Pin Number 10/100 1000Ports configured as MDIX1 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−
