160
BES50 reference information
Crossover wiring diagram
1000BASE-T pin assignments
All 1000BASE-T ports 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
"1000BASE-T MDI and MDI-X port pinouts table" (page 160)
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, 5e, or 6 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).
1000BASE-T MDI and MDI-X port pinouts table
Pin
MDI signal name
MDI-X signal name
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-)
SMB
Using the Nortel Business Ethernet Switch 50 Series
NN47924-301
01.01
Standard
1.00
October 2006
Copyright © 2006, Nortel Networks
Nortel Networks Confidential
.
Summary of Contents for BES50FE-12T PWR
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