KNX IP Router
Product Manual
13
@2019 INTERRA
PM190205012AEN
3.3) KNX Network Installation:
For line coupler functionality in a KNX network the ITR901-001 device has to use the correct physical address of a line
coupler (X.Y.0, 1≤X & Y ≤15). In ETS up to
225 addresses can be defined (from 1.1.0 to 15.15.0). For area coupler
functionality in a KNX network ITR901-
001 has to use the correct physical address of an area coupler (X.0.0, 1≤X≤15). In
ETS up to 15 areas can be defined.
If ITR901-001 is used in a KNX system for both purposes, it is only necessary to ensure that the ITR901-001 used as a line
coupler has a line coupler address assigned from a free addressing area. Following figure illustrates the ITR901-001 router
topology for KNX lines and KNX areas.
Fig 3: Interra KNX IP Router Network Topology
Example:
If an IP router with address 1.0.0 already exists on the backbone no IP router with address 1.X.0, 1≤X≤15 can be
added here. Even if no line coupler with address 1.1.0 exists on the subline of the 1.0.0 IP coupler. Vice versa, if a line
coupler with address 1.1.0 already exists in the installation no IP router with address 1.0.0 can be added.
IP Backbone
TP Line
TP Area
TP Area
1.0.0
1.X.0
2.0.0
3.1.0
1.1.0
1.2.0
Main Line
Subline
Subline
