Crossover cables – D-Link DFE-2600 User Manual

Page 124

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Dual-Speed Stackable Hub Web-based Management User’s Guide

Cables and Connectors

112

Straight Twisted-Pair Cable Pinouts

Contact

MDI-X Signal

MDI Signal

1

RD+ (receive)

TD+ (transmit)

2

RD- (receive)

TD- (transmit)

3

TD+ (transmit)

RD+ (receive)

4

Not used

Not used

5

Not used

Not used

6

TD- (transmit)

RD- (receive)

7

Not used

Not used

8

Not used

Not used

Crossover Cables

When cascading or connecting the hub to another switch, bridge, or hub
through the UTP port, a modified crossover cable is necessary. With a cross-
over cable, two pairs of wires are switched at one connector end. Carry out
the following steps to create a customized, crossover twisted-pair cable:

1.

Leave one end of the cable as is, with the RJ-45 connector intact. The
wiring at just one end of the cable needs to be modified.

2.

At the other end of the cable, connect wires 1 and 2 to contacts 3 and
6 respectively. Likewise, connect wires 3 and 6 to contacts 1 and 2.
Refer to the following diagram:

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