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Chapter 15: Appendix
[6] Configuration combining local and long distance distribution
In the basic configuration, if a specific controller is located a long distance away, or if there is a high
voltage power source or noise generating source near the network, divide the network into two seg-
ments and connect an optical cable between the two segments. This will allow you to construct a com-
bined local and long distance network with good noise immunity.
An example of a configuration combining local devices and long distance distribution
15
Optical fiber cable
(maximum cable length: 2 km)
Optical repeater
Hub
Twisted pair cable
[UTP: Category 5]
(Maximum cable length: 100 m)
Coaxial cable
(maximum cable length: 500 m)
AUI cable
(maximum cable
length: 50 m)
15-10
Optical
repeater
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