Smc-networks SMCBGSLCX1 Manuale Utente Scaricare il pdf (Pagina 54)

ABLES

B-4

1000BASE-T Pin Assignments

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

you can use straight-through cables for all network connections to PCs or

servers, or to other switches or hubs.

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.

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)

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 ... 49 50 51 52 53 54 55 56 57 58 59 ... 77 78

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Smc-networks SMCBGSLCX1 Manuale Utente Pagina 54