APPENDIX A NETWORKING CONNECTION

A.1 Switch‘s RJ-45 Pin Assignments

1000Mbps, 1000Base-T
Contact
MDI
MDI-X

1

BI_DA+

BI_DB+

 

 

 

2

BI_DA-

BI_DB-

 

 

 

3

BI_DB+

BI_DA+

 

 

 

4

BI_DC+

BI_DD+

 

 

 

5

BI_DC-

BI_DD-

 

 

 

6

BI_DB-

BI_DA-

 

 

 

7

BI_DD+

BI_DC+

 

 

 

8

BI_DD-

BI_DC-

 

 

 

10/100Mbps, 10/100Base-TX
RJ-45 Connector pin assignment

Contact

MDI Media Dependant

MDI-X Media Dependant

Interface

 

Interface - Cross

 

 

1

Tx + (transmit)

 

Rx + (receive)

 

 

 

 

2

Tx - (transmit)

 

Rx - (receive)

 

 

 

 

3

Rx + (receive)

 

Tx + (transmit)

 

 

 

 

4, 5

 

Not used

 

 

 

 

6

Rx - (receive)

 

Tx - (transmit)

 

 

 

 

7, 8

 

Not used

 

 

 

 

20