APPENDIX A NETWORKING CONNECTION

A.1 Switch‘s RJ-45 Pin Assignments

10/100Mbps, 10/100Base-TX

When connecting your 10/100Mbps Ethernet Switch to another switch, a bridge or a hub, a straight or crossover cable is necessary. Each port of the Switch supports auto-MDI/MDI-X detection. That means you can directly connect the Switch to any Ethernet devices without making a crossover cable. The following table and diagram show the standard RJ-45 receptacle/ connector and their pin assignments:

RJ-45 Connector pin assignment

 

MDI

 

MDI-X

Contact

Media Dependant

 

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

 

 

 

 

The standard cable, RJ-45 pin assignment

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