Operational Description
MECip
SECURE
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4.3
KNX Network Installation
For MECip-Sec´s usage in a KNX installation, one of the available Individual Addresses must
be chosen. Having set an Individual Address (x.y.0), a TP Line is connected to KNX IP. To
connect a TP Area to the IP Backbone, an area coupler address (x.0.0) must be set.
It is recommended to make sure the factory default Individual Address 15.15.0 is not
used in the installation network.
Defining a correct topology is absolutely mandatory to guarantee proper functioning.
In a KNX system with MECip-Sec backbone couplers and MECtp-Sec line couplers, it is
necessary to ensure that every MECip-Sec has an address assigned from a free addressing
area. Following figure illustrates a possible topology scenario.
Figure 5: MECip-Sec Network Topology
Example: If a KNX IP router with address 1.0.0 already exists on the backbone no KNX IP
router with address 1.x.0 can be added here. Even if no line coupler with address 1.1.0 exists
on the subline of the 1.0.0 router. Vice versa, when line couplers with addresses 3.x.0 already
exist in an installation, an IP router with address 3.0.0 cannot be added.
