SMC Networks ST40 Manuel d'utilisateur télécharger pdf (Page 23)

WISTED

-P

AIR

ABLE

AND

SSIGNMENTS

The figure below illustrates how the pins on the RJ-45 connector are

numbered. Be sure to hold the connectors in the same orientation when

attaching the wires to the pins.

10BASE-T/100BASE-TX Pin Assignments

With standard straight-through 10BASE-T/100BASE-TX cable, pins 1 and

2 are used for transmitting data, and pins 3 and 6 for receiving data. The

“+” and “-” signs in the table below are used to represent the polarity of the

wires that make up each wire pair.

Because all ports on this switch support automatic MDI/MDI-X

operation, you can use straight-through cables for all network connections

to PCs or servers, or to other switches or hubs..

Straight-Through RJ-45 Pin Assignments

End 1 End 2

1 (Tx+) 1 (Tx+)

2 (Tx-) 2 (Tx-)

3 (Rx+) 3 (Rx+)

6 (Rx-) 6 (Rx-)

1 2 ... 18 19 20 21 22 23 24 25 26 27 28

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SMC Networks ST40 Manuel d'utilisateur Page 23