Foundry Networks 2402CF - Manual (Page 49)

1000BASE-T P
IN
A
SSIGNMENTS
February 2003 © 2003 Foundry Networks, Inc. B-5
1000BASE-T Pin Assignments
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).
Pi
n
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+) Receive Data minus
(RD3+)
8 Receive Data minus
(RD4-) Receive Data minus
(RD3-)