3Com 3CBLSF50 User Guide - Page 89
Ethernet Port RJ-45 Pin Assignments, Pin Number
UPC - 662705529103
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Ethernet Port RJ-45 Pin Assignments Table 2 RJ-45 MDI Pin Assignments Pin Number 10/100 1000 Ports configured as MDI 1 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- Ethernet Port RJ-45 Pin Assignments 89 Table 3 RJ-45 MDIX 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 D+ 5 Not assigned Bidirectional Data D- 6 Transmit Data - Bidirectional Data A- 7 Not assigned Bidirectional Data C+ 8 Not assigned Bidirectional Data C-