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MDI and MDI-X Connections
BayStack switches use MDI-X ports that allow you to connect directly to end
stations without using crossover cables (see
crossover function internally are known as MDI-X ports (where "X" refers to the
crossover function).
Note: For the transmitter of one device to connect to the receiver of another
device, the sum of crossovers must always be an odd number.
BayStack 303/304 switch
T
R
MDI-X port
Figure 4-1.
MDI-X to MDI cable connections
893-01010-A
1
8
8
1
1
RX+
1
2
RX-
2
3
TX+
3
4
4
5
5
6
TX-
6
7
7
8
8
Straight-through cable
Troubleshooting and Diagnostics
Figure
4-1). Ports that implement the
8
1
1
8
1
TX+
1
2
TX-
2
3
RX+
3
4
4
5
5
6
RX-
6
7
7
8
8
MDI port
End station
T
R
617EB
4-3
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