MDT Technologies RF-LK001.03 User manual

State 08/2023 - Version 1.0
Technical Manual
MDT technologies GmbH · Papiermühle 1 · 51766 Engelskirchen · Germany
Phone [phone] · [email protected] · www.mdt.de
KNX RF+ Line Coupler
RF-LK001.03
Further Documents:
Datasheet:
https://www.mdt.de/EN_Downloads_Datasheets.html
Assembly and Operation Instructions:
https://www.mdt.de/EN_Downloads_Instructions.html
Solution Proposals for MDT products:
https://www.mdt.de/en/for-professionals/tips-tricks.html

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Technical Manual
KNX RF+ Line Coupler [RF-LK001.03]
State 08/2023 - Version 1.0
Content
2 Overview...........................................................................................................................................3
2.1 Overview devices.....................................................................................................................................3
2.2 Functions .................................................................................................................................................4
2.3 Connection diagram ................................................................................................................................4
2.4 Structure & Handling...............................................................................................................................5
2.5 Commissioning........................................................................................................................................5
3 ETS Parameter ..................................................................................................................................6
3.1 Main line (KNX TP)...................................................................................................................................6
3.2 Line (KNX RF)...........................................................................................................................................8
4 Settings in the ETS............................................................................................................................9
4.1 Structure of a project ..............................................................................................................................9
4.1.1 Topology with separate RF line ........................................................................................................9
4.1.2 Topology with segment coupler .....................................................................................................10
4.2 Telegram routing ...................................................................................................................................11
4.3 Filter table .............................................................................................................................................11
4.4 Preview lter table ................................................................................................................................12
4.5 Procedure for commissioning ...............................................................................................................12
5 Index ..............................................................................................................................................13
5.1 Register of illustrations .........................................................................................................................13
5.2 List of tables ..........................................................................................................................................13
6 Appendix ........................................................................................................................................14
6.1 Statutory requirements.........................................................................................................................14
6.2 Disposal .................................................................................................................................................14
6.3 Assembly ...............................................................................................................................................14
6.4 History ...................................................................................................................................................14

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Technical Manual
KNX RF+ Line Coupler [RF-LK001.03]
State 08/2023 - Version 1.0
2 Overview
2.1 Overview devices
This manual refers to the following devices (order number in bold).
■ RF-LK001.03 KNX RF+ Line Coupler, flush mounted

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Technical Manual
KNX RF+ Line Coupler [RF-LK001.03]
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2.2 Functions
Line coupler
The device is used to connect devices on an RF radio line with devices on a TP (twisted pair) line. The bus
load can be reduced via a lter table.
Segment coupler functionality (from ETS 6)
The new segment coupler function is a software extension of a line coupler that connects line segments
independently of the media type. This means that a KNX RF line coupler can be integrated into a twisted
pair line without having to create a separate structure.
Long Frame Support
The device supports “Long Frames” (longer telegrams). These contain more user data per telegram, which
signicantly reduces the programming time with the ETS.
2.3 Connection diagram
The following picture shows the exemplary connection diagram for a RF+ Line Coupler:
Figure 1: Exemplary connection diagram

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KNX RF+ Line Coupler [RF-LK001.03]
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2.4 Structure & Handling
The following pictures show the structure of the device:
Figure 2: Structure & Handling
1 = Bus connecting terminal, Connection to main line (TP)
2 = Programming button
3 = Red programming LED
4 = Antenna, radio transmission to line (KNX RF)
2.5 Commissioning
1. Wire the device according to the connection diagram.
2. Connect interface to the bus, e.g. MDT USB Interface.
3. Switch on bus voltage.
4. Press the programming button on the device (red programming LED lights up continuously).
5. Set and programme the individual address in the ETS. (Programming LED turns off)
6. Congure and programme the settings in the application programme.

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KNX RF+ Line Coupler [RF-LK001.03]
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3 ETS Parameter
3.1 Main line (KNX TP)
The following table shows the available settings:
ETS Text Dynamic range
[Default value] Comment
Telegram routing ■ Groups: lter; Physical: block
■ Groups and Physical: lter
■ Groups: route; Physical: lter
■ Groups and Physical: route
■ individual setting
■ block: No telegram is forwarded.
■ lter: Only telegrams from the lter
table are forwarded.
■ route: All telegrams are forwarded.
■ individual setting: The following
parameters can be set individually.
Group telegrams:
Main group 0…13
■ route all (not recommended)
■ block
■ lter
■ All group telegrams (main group
0...13) are forwarded.
■ No group telegram (main group
0...13) is forwarded.
■ Only group telegrams (main group
0...13) from the lter table are
forwarded.
Group telegrams:
Main group 14…31
■ route all (not recommended)
■ block
■ lter
■ All group telegrams (main group
14...31) are forwarded.
■ No group telegram (main group
14...31) is forwarded.
■ Only group telegrams (main group
14...31) from the lter table are
forwarded.
Physical telegrams ■ route all (not recommended)
■ block
■ lter
■ All physical telegrams are forwarded.
■ All physical telegrams are blocked.
■ Only physical telegrams
corresponding to the lter table are
forwarded.
Physical telegrams:
Repetition for errors on the
main line
■ not active
■ up to 3 repetitions
■ only one repetition
In case of transmission errors (e.g. due
to missing receiver) on the main line,
physical telegrams are...
■ not sent repeatedly.
■ sent up to three times repeatedly.
■ sent once repeatedly.

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Technical Manual
KNX RF+ Line Coupler [RF-LK001.03]
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ETS Text Dynamic range
[Default value] Comment
Group telegrams:
Repetition for errors on the
main line.
■ not active
■ up to 3 repetitions
■ only one repetition
In case of transmission errors (e.g. due
to missing receiver) on the main line,
group telegrams are...
■ not sent repeatedly.
■ sent up to three times repeatedly.
■ sent once repeatedly.
Conrm telegrams on main
line
■ if routed
■ always
■ Forwarded telegrams on RF line are
conrmed by an “ACK” on the main
line.
■ Each telegram on the main line is
conrmed by an “ACK”.
Conrm own telegrams ■ active
■ not active
■ Telegrams sent to the main line are
conrmed by an additional “ACK”.
■ No conrmation by an “ACK”.
Table 1: Settings – Main line (KNX TP)
Note: The setting “route all” for group and physical telegrams is only intended for test purposes. The
setting in normal operation is not recommended.
For more information on “Group telegrams” and “Physical telegrams”, see 4.2 Telegram routing

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KNX RF+ Line Coupler [RF-LK001.03]
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3.2 Line (KNX RF)
The following table shows the available settings:
ETS Text Dynamic range
[Default value] Comment
Programming via
Line (KNX RF)
■ allow
■ block
Setting whether the programming of the
device is also possible via the RF line.
Telegram routing ■ Groups: lter; Physical: block
■ Groups and Physical: lter
■ Groups: route; Physical: lter
■ Groups and Physical: route
■ individual setting
■ block: No telegram is forwarded.
■ lter: Only telegrams from the lter
table are forwarded.
■ route: All telegrams are forwarded.
■ individual setting: The following
parameters can be set individually.
Group telegrams:
Main group 0…13
■ route all (not recommended)
■ block
■ lter
■ All group telegrams (main group
0...13) are forwarded.
■ No group telegram (main group
0...13) is forwarded.
■ Only group telegrams (main group
0...13) from the lter table are
forwarded.
Group telegrams:
Main group 14…31
■ route all (not recommended)
■ block
■ lter
■ All group telegrams (main group
14...31) are forwarded.
■ No group telegram (main group
14...31) is forwarded.
■ Only group telegrams (main group
14...31) from the lter table are
forwarded.
Physical telegrams ■ route all (not recommended)
■ block
■ lter
■ All physical telegrams are forwarded.
■ All physical telegrams are blocked.
■ Only physical telegrams
corresponding to the lter table are
forwarded.
Table 2: Settings – Line (KNX RF)
Note: The setting “route all” for group and physical telegrams is only intended for test purposes. The
setting in normal operation is not recommended.

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Technical Manual
KNX RF+ Line Coupler [RF-LK001.03]
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4 Settings in the ETS
4.1 Structure of a project
4.1.1 Topology with separate RF line
From ETS 5:
The project is set up identically to projects with twisted pair (abbreviated as “TP” in the following) line
couplers, except that each connection from radio (abbreviated as “RF” in the following) to TP must be
implemented via the RF-LK001.03 line coupler. A radio line is generated in the medium “RF”. Here, too,
the RF line coupler has the address “x.0”.
The following picture shows the exemplary structure of a topology:
Figure 3: Example – Topology with RF Line

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4.1.2 Topology with segment coupler
ETS 6:
With ETS 6 (from version 6.0.5), the RF line coupler can be used as a segment coupler. This is a software-
side extension that connects line segments independently of the media type. This means that a KNX RF
line coupler can be integrated into a TP line without having to create a separate structure for it.
The following picture shows the exemplary structure of a topology:
Figure 4: Example – Topology with segment coupler