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Cables and Connectors<br />

DES-3526 / DES-3526DC Fast Ethernet Layer 2 Switch<br />

198<br />

Appendix B<br />

When connecting the Switch to another switch, a bridge or hub, a normal cable is necessary. Please<br />

review these products for matching cable pin assignment.<br />

The following diagrams and tables show the standard RJ-45 receptacle/connector and their pin<br />

assignments.<br />

Figure B- 1. The standard RJ-45 port and connector<br />

RJ-45 Pin Assignments<br />

Contact MDI-X Port MDI-II Port<br />

1 RD+ (receive) TD+ (transmit)<br />

2 RD- (receive) TD- (transmit)<br />

3 TD+ (transmit) RD+ (receive)<br />

4 Not used Not used<br />

5 Not used Not used<br />

6 TD- (transmit) RD- (receive)<br />

7 Not used Not used<br />

8 Not used Not used<br />

Table B- 1. The standard RJ-45 pin assignments

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