SMC Networks 8612T2 FICHE, Руководство по установке

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T
WISTED
-P
AIR
C
ABLE AND
P
IN
A
SSIGNMENTS
B-3
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. In straight-through cable, pins 1 to 8
at one end of the cable are connected straight through to pins 1 to 8 at the
other end of the cable.
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 MDI-X
1
Bi-directional Data One Plus (BI_D1+) Bi-directional Data Two Plus (BI_D2+)
2 Bi-directional Data One Minus (BI_D1-) Bi-directional Data Two Minus (BI_D2-)
3 Bi-directional Data Two Plus (BI_D2+) Bi-directional Data One Plus (BI_D1+)
4
Bi-directional Data Three Plus (BI_D3+) Bi-directional Data Four Plus (BI_D4+)
5
Bi-directional Data Three Minus (BI_D3-) Bi-directional Data Four Minus (BI_D4-)
6
Bi-directional Data Two Minus (BI_D2-) Bi-directional Data One Minus (BI_D1-)
7
Bi-directional Data One Plus (BI_D4+) Bi-directional Data One Plus (BI_D3+)
8 Bi-directional Data Four Minus (BI_D4-)
Bi-directional Data Three Minus (BI_D3-)