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PAGE 22
FireBall™ MP-200 User’s Manual
Straight-through cables are used for connecting
computers to a hub. Crossed cables are used for
connecting a hub to another hub (there is an exception:
some hubs have a built-in uplink port that is crossed
internally, which allows you to uplink hubs together with
a straight cable instead).
In a straight-through cable, wires 1, 2, 3, and 6 at one end
of the cable are also wires 1, 2, 3, and 6 at the other end.
In a crossed cable, the order of the wires change from one
end to the other: wire 1 becomes 3, and 2 becomes 6.
To figure out which wire is wire number 1, hold the cable
so that the end of the plastic RJ-45 tip (the part that goes
into a wall jack first) is facing away from you. Flip the
clip so that the copper side faces up (the springy clip will
now be parallel to the floor). When looking down on the
coppers, wire 1 will be on the far left.
CAT5 cabling should not exceed 100 meters. The
following drawing depicts the typical wiring scheme for
CAT5.
For more information about wiring an Ethernet network,
please refer to the Linksys web site
(www.linksys.com).