Smc-networks SMC7500A/VCP Manuel d'utilisateur télécharger pdf (Page 28)

ROUBLESHOOTING

connected straight through to pins 1, 2, 3, and 6 at the other end of the

cable.

Straight-Through Cable

If the twisted-pair cable is to join two ports and only one of the ports has

an internal crossover (MDI-X), the two pairs of wires must be

straight-through.

Pin MDI-X Signal

Name

MDI Signal Name

1 Receive Data plus

(RD+)

Transmit Data plus (TD+)

2 Receive Data minus

(RD-)

Transmit Data minus (TD-)

Transmit Data plus

(TD+)

Receive Data plus (RD+)

Transmit Data

minus (TD-)

Receive Data minus (RD-)

4,5,7,8

Not used Not used

Straight-Through RJ-45 Pin Assignments

End 1 End 2

1 (RD+) 1 (TD+)

2 (RD-) 2 (TD-)

3 (TD+) 3 (RD+)

6 (TD-) 6 (RD-)

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 34

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Smc-networks SMC7500A/VCP Manuel d'utilisateur Page 28