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two connectors would cancel one another, and the
hub-to-hub connection would fail.)
Thus the rule for making a hub-to-hub connection
with twisted-pair cable is as follows:
To make a hub-to-hub connection with a
straight cable, Uplink must be selected at
one end of the cable, and Uplink must not
be selected at the other end of the cable.
To make a hub-to-hub connection with a
cross-over cable, Uplink must not be
selected at either end of the cable.
To connect the Ethernet Hub to a thin coaxial
cable (lOBase2 cable, also known by its wire-
standard name, RG58A/U, and a variety of other
informal names), first twist a BNC T-connector
onto the rear-panel BNC connector of the
Ethernet Hub. Then twist the shell of the cable's
connector onto either leg of the BNC T.
If the thin coaxial cable continues on to other
nodes, then twist the shell of the continuation
cable onto the remaining leg of the BNC T. If
there is no continuation (the Ethernet Hub is at
the end of the coaxial cable), then it is necessary to
twist a 50-ohm terminator onto the remaining
open leg of the BNC T.
7
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