Civil Engineering Reference
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in
s
twisted pair
g
in
in
s
coaxial cable
g
s: signal conductor, g: signal-ground conductor, in: insulation
Figure 4.10
Examples of network cables.
Signal
Ground
Node A
Node B
Input
Output
Input
Output
Figure 4.11
Node-to-node interconnection.
is used as reference or a signal ground. In coaxial cable, the role of signal-
ground conductor is always played by the external cylindrical conductor. In
both cables, conductors are insulated to provide electrical separation between
each other and from any external circuits.
In bus topology, all network nodes are connected to the network medium
(cable) in the same way. Figure 4.11 represents a model of such a connection,
which is part of the function of the transceiver. The model is generalized and
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