Bus Topologies - Siemens RXB Series Basic Documentation

Advantage:
Tree topology
Branching and
connection variants
For internal use only
Siemens
Building Technologies
2.3

Bus topologies

Allowed bus topologies: Tree, line and star topologies. These topologies can be
mixed as needed. However, ring topologies are not allowed.
The tree topology is advantageous if a large network must be created.
Tree topology (with stub lines)
N2
N1
KNX TP1
N6
N7
N1 .. N7 Bus devices
Device with
screw terminals
CE+ CE-
CE+
CE-
N1
N1 .. N8 Bus devices
KNX bus communications
Engineering notes
Line topology (with loops)
N3 N4
KNX TP1
N5
T-branch with
bus terminal
CE+
CE-
CE+ CE-
N2
N3
N4
N2
N1
N3
Device with
spring cage terminals
CE+ CE- CE+
N5
N8
CE1P3127en
N4
CE-
N6
N7
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2013-04-08