APPENDIX A NETWORKING CONNECTION

A.1 Switch‘s RJ-45 Pin Assignments

10/100Mbps, 10/100Base-TX

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

IEEE 802.3af DC 48V

 

 

 

 

 

 

6

Rx - (receive)

Tx - (transmit)

 

 

 

 

 

7, 8

IEEE 802.3af DC 0V

 

 

 

 

 

 

A.2 RJ-45 cable pin assignment

The standard RJ-45 receptacle/connector

There are 8 wires on a standard UTP/STP cable and each wire is color-coded. The following shows the pin allocation and color of straight cable and crossover cable connection:

Figure A-1: Straight-Through and Crossover Cable

Please make sure your connected cables are with same pin assignment and color as above picture before deploying the cables into your network.

2080-A31120-001

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