Siemens RXB Series Basic Documentation page 53

IP routers as couplers
between "worlds"
For internal use only
Siemens
Building Technologies
When the selected method of coupling is "IP router as area coupler", two or more
KNX areas are linked via an IP network. The IP routers are used to link main lines,
i.e. they must be addressed on the KNX side as area couplers.
1.0.0
Main line 1
Lc Lc
1.1.0 1.2.0
N140/13 N140/13
KNX area 1 (main line 1) – IP network – KNX area 2 (main line 2)
IP routers are also used to link "worlds". This method helps couple two or more
KNX networks via an IP network
In this case, the IP routers connect the IP network to the KNX area line 0 of each
involved KNX network. The IP routers in all KNX networks must be set to KNX
address 0.0.0.
0.0.0
Area line 0
Lc Lc
0.1.0 0.2.0
N140/13 N140/13
KNX network 1 (area line 0) – IP network – KNX network 2 (area line 0)
KNX bus communications
Large plants
IP network
IP Ac
N146
KNX
Lc Lc
1.3.0 1.4.0
N140/13 N140/13
IP network
IP Ac
N146
KNX
Ac
1.0.0
N140/13
IP Ac
2.0.0
N146
Main line 2
Lc
2.1.0 2.2.0
N140/13
IP Ac
0.0.0
N146
Area line 0
Ac
1.0.0 2.0.0
N140/13
KNX
Lc
N140/13
KNX
Ac
N140/13
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CE1P3127en
2013-04-08