SMC Networks SMC9452TX Manual do Utilizador descarregar pdf (Página 49)

ABLES

B-3

1000BASE-T Pin Assignments

1000BASE-T ports support automatic MDI/MDI-X operation, so

you can use straight-through cables for all network connections. In

straight-through cable, pins 1-8, at one end of the cable, are

connected straight through to pins 1-8 at the other end of the

cable.

Use 100-ohm Category 5 or 5e unshielded twisted-pair (UTP) or

shielded twisted-pair (STP) cable for 1000BASE-T connections.

Also be sure

that the length of any twisted-pair connection does not

exceed 100 meters (328 feet)

The table below shows the 1000BASE-T MDI and MDI-X port

pinouts. These ports require that all four pairs of wires be

connected. Note that for 1000BASE-T operation, all four pairs of

wires are used for both transmit and receive.

Pin MDI Signal Name MDI-X Signal Name

1 Transmit Data plus (TD1+) Transmit Data plus (TD2 +)

2 Receive Data minus (RD1-) Receive Data minus (RD2-)

3 Transmit Data plus (TD2+) Transmit Data plus (TD1+)

4 Transmit Data plus (TD3+) Transmit Data plus (TD4+)

5 Receive Data minus (RD3-) Receive Data minus (RD4-)

6 Receive Data minus (RD2-) Receive Data minus (RD1-)

7 Transmit Data plus (TD4+) Transmit Data plus (TD3+)

8 Receive Data minus (RD4-) Receive Data minus (RD3-)

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 61 62

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SMC Networks SMC9452TX Manual do Utilizador Página 49