The part of the network connected to the secondary side of a Line Coupler (Linienkoppler) is the Line. Devices in a Line shall have Physical Address x.y.n
The part of the network connected to the primary side of a Line Coupler Coupler is the Main Line (Hauptlinie). Devices in the Main Line shall have Physical Address x.0.n.
This is not a matter of naming. This is specified this way. It guarantees that it will work and that the installation can be extended and understood later on.
Other "names" and numbers may work as well. They are not specified, give no guarantee that the network can be extended later on, are no in line with the KNX Association training documentation, and - in case you are a professional installer -it may be a ground for your customer to refuse your installation.
Devices in your Line have Physical Addresses 1.1.n.
The Coupler will be a Line Coupler and has Physical Address 1.1.0.
Devices in the Main Line (Hauptlinie) have Physical Address 1.0.n.
This is the topology of the KNX network. This is independent of the functionality of the devices installed in this Line and Main Line.
The part of the network connected to the primary side of a Line Coupler Coupler is the Main Line (Hauptlinie). Devices in the Main Line shall have Physical Address x.0.n.
This is not a matter of naming. This is specified this way. It guarantees that it will work and that the installation can be extended and understood later on.
Other "names" and numbers may work as well. They are not specified, give no guarantee that the network can be extended later on, are no in line with the KNX Association training documentation, and - in case you are a professional installer -it may be a ground for your customer to refuse your installation.
Devices in your Line have Physical Addresses 1.1.n.
The Coupler will be a Line Coupler and has Physical Address 1.1.0.
Devices in the Main Line (Hauptlinie) have Physical Address 1.0.n.
This is the topology of the KNX network. This is independent of the functionality of the devices installed in this Line and Main Line.
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