Table of Contents
Advertisement
Figure 11). If the hub is equipped with an uplink port, it will require a
straight-through cable instead of a crossover cable.
Note: The 802.3ab standard (automatic MDI or MDIX detection) calls for automatic
UTP crossover cable
10/100BaseTX
1
Figure 10. 10 UTP crossover cable
Cat-5 crossover cable
1000BaseT
1
Figure 11. Cat-5 crossover cable for 1000Base-T
Note: The 802.3ab standard calls for automatic negotiation of the connection
22
IBM x-series of Ethernet Switches Installation and User Guide
negotiation of the connection between two 1000Base-T ports. Therefore, a
crossover cable may not be required; a straight-through cable may work as
well. For more information about this feature, refer to the FastIron and
TurboIron 24X Configuration Guide.
1
2
3
8
unused 4
unused 5
6
unused 7
unused 8
1
2
3
8
4
5
6
7
8
between two 1000Base-T ports. Consequently, a crossover cable may not be
required; a straight-through cable may work as well.
1
2
3
4 unused
5 unused
6
7 unused
8 unused
net_com007
1
2
3
4
5
6
7
8
net48bg028
Advertisement
Table of Contents
