devolo dLAN® 200 AVpro Project Manual
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normally consists of the three phases. You can usually set up very powerful dLAN
networks over the power line on a sub-distribution system. However, no (or only very
poor) communication is possible over the supply line from one sub-distribution
system to another.
In this example, a phase coupler (installed in a control cabinet serving one
or more sub-distribution systems) does not act as an aid for improving data
transmission between the sub-distribution systems. Each dLAN network is
to be considered quasi-autonomous.
Important: it is
still mandatory
to use a separate password for each dLAN
network!
If minimum p
hase coupling should exist between the individual sub-
distribution systems, a spanning tree error would result in the form of
looping data packets.
Fig. 5-4: dLAN networking in large buildings
If communication between the sub-distribution systems is wanted, you need to have
a backbone connection. The individual segments are then connected over a switch,
making communication between the sub-distribution systems possible. A quantity of
distributed dLAN networks can be managed from a central entity in this manner
using dLAN AVpro manager. The backbone can be setup using standard methods,
such as wired Ethernet, WLAN, etc. An alternative is to use the antenna cables, or
the existing telephone or other two-wire cable structures with the devolo dLAN 200
AVpro2.