Allied-telesis AT-MR820T Manual de usuario descargar pdf (Pagina 43)

AT-MR420T and AT-MR820T

Backbone Networks

The most straightforward topology is a backbone network. Figure 12

show a backbone network topology with the AUI port attaching to a

coaxial Ethernet cable.

Figure 12: AT-MR420T Backbone Topology

In a backbone network topology, each workgroup has its own local

network and the backbone is used to link the various workgroups

through the bridges. The advantages of a backbone network topology

are twofold:

❑ When the backbone network is operating correctly, any

problem within a sub-network does not affect other sub-

networks.

❑ Since faults are isolated to a single sub-network, they are

easier to locate.

100 Meters

maximum

Category 3-5

UTP cable

wired 

Pin to Pin

AUI cable

Coaxial Backbone

Ethernet

Transceiver

MRx20T(UTP)Ver6_Book Page 21 Thursday, April 3, 1997 5:18 PM

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Allied-telesis AT-MR820T Manual de usuario Pagina 43