©
2019 WEINZIERL ENGINEERING GmbH
Page 2/8
Coupler function (KNXnet/IP Routing)
The KNX IP Router 752
secure
operates as a line or backbone
coupler. In both cases, the LAN (IP) is used as a backbone.
The following table shows the application possibilities of the KNX
IP Router compared to the classic topology:
Classical
Topology
(without IP)
IP coupling
of areas
(IP area coupl.)
IP coupling
of lines
(IP line coupler)
Area
(Backbone)
TP
IP
IP
Coupling
KNX Line Coupler
(max. 15 Pcs.)
KNX IP Router
(max. 15 Pcs.)
Directly via
LAN Switch
Main line
TP
TP
IP
Coupling
KNX Line Coupler
(max. 15x15 Pcs.)
KNX Line Coupler
(max. 15x15 Pcs.)
KNX IP Router
(max. 225 Pcs..)
Line
TP
TP
TP
Switch
KNX TP
LAN
1.1.1
1.1.6
1.1.5
1.1.4
1.1.3
1.1.2
1.1.7
1.1.12
1.1.11
1.1.10
1.1.9
1.1.8
KNX IP
Router 752
secure
1.1.0
KNX IP
Router 752
secure
2.1.0
KNX TP
2.1.1
2.1.6
2.1.5
2.1.4
2.1.3
2.1.2
2.1.7
2.1.12
2.1.11
2.1.10
2.1.9
2.1.8
KNX IP Router as line coupler
The individual address assigned to the KNX IP Router 752
se-
cure
determines whether the device operates as a line or area
coupler. If the individual address is in the form of x.y.0 (x, y:
1..15), the router operates as a line coupler. If it is in the form of
x.0.0 (x: 1..15), the router acts as a backbone coupler.
Switch
LAN
KNX IP
Router 752
secure
1.0.0
KNX IP
Router 752
secure
2.0.0
KNX TP
1.1.0
1.2.0
1.2.1
1.2.6
1.2.5
1.2.4
1.2.3
1.2.2
1.1.1
1.1.6
1.1.5
1.1.4
1.1.3
1.1.2
KNX TP
2.1.0
2.2.0
2.2.1
2.2.6
2.2.5
2.2.4
2.2.3
2.2.2
2.1.1
2.1.6
2.1.5
2.1.4
2.1.3
2.1.2
KNX IP Router as area coupler
If the KNX IP Router 752 secure is used as a area cou-
pler (x.0.0), there must not be a KNX IP Router in the to-
pology beneath it. For example, if a KNX IP Router has
the individual address 1.0.0, there must be no KNX IP
Router with the address 1.1.0.
If the KNX IP Router 752 secure is used as a line cou-
pler (x.y.0), there must not be a KNX IP Router in the to-
pology above it. For example, if a KNX IP Router has the
individual address 1.1.0, there must be no KNX IP Rout-
er with the address 1.0.0.
Switch
LAN
KNX IP
Router 752
secure
1.0.0
KNX TP
1.1.0
1.2.0
1.2.1
1.2.6
1.2.5
1.2.4
1.2.3
1.2.2
1.1.1
1.1.6
1.1.5
1.1.4
1.1.3
1.1.2
KNX IP
Router 752
secure
2.1.0
KNX TP
2.1.1
2.1.6
2.1.5
2.1.4
2.1.3
2.1.2
2.1.7
2.1.12
2.1.11
2.1.10
2.1.9
2.1.8
KNX IP Router as area and line coupler