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Making Connections22
The following table describes different methods of linking hubs (or hub
stacks):
HUB
PORT
USED
DEVICE PORT
TYPE
CABLE TO USE
Normal Switch or
Hub
Non-
Uplink
Crossover (X)
Uplink
Straight-Through (||)
Server (or PC) Straight-Through (||)
Uplink
Switch or
Hub
Non-
Uplink
Straight-Through (||)
Uplink
Crossover (X)
Server (or PC) Crossover (X)
A crossover cable is a straight-through twisted-pair cable in which the
wires have been crossed. The figure below shows the pin assignments for
an Ethernet or Fast Ethernet crossover cable:
NOTE:
The first twisted-pair port (Port 1) is shared
with the Uplink port. If you connect a hub to
the Uplink port, then do not use Port 1.