Weinzierl KNX RF/TP Coupler 673.1 secure Specification sheet

WEINZIERL ENGINEERING GmbH
Achatz 3-4
84508 Burgkirchen an der Alz
GERMANY
Tel.: +49 8677 / 916 36 –0
E-Mail:[e-mail]
Web: www.weinzierl.de
© 2022 WEINZIERL ENGINEERING GmbH Seite 1/22
Compact KNX RF/TP coupler with support of
KNX Data Security, Security Proxy and Segment Coupler
KNX RF/TP Coupler 673.1 secure
Operation and installation manual
(Art. # 5474)

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Content
1Application .........................................................................................................................3
2Installation and connection...............................................................................................3
2.1 KNX programming mode......................................................................................................4
2.2 Manual operation and status display....................................................................................4
3Reset to factory default settings....................................................................................... 6
3.1 Factory default settings........................................................................................................6
4Wiring scheme ...................................................................................................................6
4.1 Line Coupler ........................................................................................................................7
4.2 Segment Coupler.................................................................................................................9
5KNX Security.................................................................................................................... 10
5.1 Security Proxy.................................................................................................................... 10
6ETS database ................................................................................................................... 11
6.1 ETS 5.................................................................................................................................11
6.2 ETS 6.................................................................................................................................11
6.3 Secure commissioning.......................................................................................................11
6.4 Secure group communication.............................................................................................14
6.5 Description.........................................................................................................................16
6.6 General settings.................................................................................................................16
6.7 Routing TP->RF.................................................................................................................17
6.8 Routing RF->TP.................................................................................................................19
6.9 Filter Table / Security Proxy Tables....................................................................................21

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1 Application
The KNX RF/TP Coupler 673.1 secure is a compact KNX radio coupler. It connects KNX RF
devices of a radio line with the KNX Bus Twisted Pair.
The device has an extended filter table for main group 0 … 31. The coupler supports KNX Long
Frames and is compatible with the ETS® software ETS 5 or higher.
The buttons on the front panel allow disabling the telegram filter for testing purposes. The LEDs
indicate operating conditions as well as communication errors on the KNX bus.
The power is supplied via the KNX bus.
The device supports KNX Data Security. The functionality of Security Proxy and Segment Coupler
is only supported with the ETS 6 database.
2 Installation and connection
Mounting can be recessed in the wall and thus almost “invisible”, because the housing has the
right size for mounting in a standard flush-mounted box.
When selecting the mounting location, the range of the radio devices to be connected to the device
must be taken into account. Shielding objects (e.g. metal cabinets) or interfering transmitters (e.g.
computers, electronic transformers, ballasts) near the gateway should be avoided.
The device is connected to the KNX bus using a bus terminal. The correct polarity of the terminal
according to the marking on the device must be observed.
The KNX RF/TP Coupler 673.1 secure has the following operating elements and displays:
❶Button for programming mode
❷Programming LED (red)
❸KNX bus connector
❹LED Status (multicolor)
❺LEDs 1 –8 (green)
❻Button A
❼Button B
If the bus voltage is missing, the device is without function.

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2.1 KNX programming mode
The KNX programming mode is activated/deactivated either by pressing the recessed KNX
programming button ❶.
When the programming mode is active, the programming LED ❷lights up red.
2.2 Manual operation and status display
The LED Status ❹lights up green when KNX bus voltage is present. This LED flashes red if the
application is not running, e.g. after an aborted ETS download. If manual operation is active, this is
indicated by the LED Status ❹lighting up orange.
Summary of the states of the LED Status ❹:
LEDs 1 –4 ❺indicate TP telegram traffic.
LEDs 5 –8 ❺indicate RF telegram traffic. If RF telegrams are received from another domain, the
LED Status ❹flashes orange briefly in addition.
Summary of the states of the LEDs 1 –8 ❺:
2.2.1 Manual operation TP
Briefly pressing button A ❻activates manual operation for mode TP.
Pressing button A ❻briefly deactivates/activates the forwarding of the group telegrams. This is
indicated by LEDs 1 and 2 ❺.
Pressing button B ❼briefly deactivates/activates the forwarding of the physically addressed
telegrams and the broadcast telegrams. This is indicated by LEDs 3 and 4 ❺.
Pressing button A ❻or button B ❼for a long time exits manual operation.
Manual operation can be locked in the ETS database.
LED Status
Meaning
LED lights green
The device operates in normal operating mode.
LED flashes red
The device is not loaded correctly
e.g. after aborting a download.
LED lights orange
Manual operation is active.
LED briefly orange
RF telegrams from another domain received.
LED Status
Meaning
LEDs 1 –4 briefly green
Manual operation is not active.
Telegram traffic via KNX TP.
LEDs 5 –8 briefly green
Manual operation is not active.
Telegram traffic via KNX RF.

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Summary of the states of the LEDs 1 –4 ❺:
2.2.2 Manual operation RF
Briefly pressing button B ❼activates manual operation for mode RF.
Pressing button A ❻briefly deactivates/activates the forwarding of the group telegrams. This is
indicated by LEDs 5 and 6 ❺.
Pressing button B ❼briefly deactivates/activates the forwarding of the physically addressed
telegrams, the broadcast telegrams and the system broadcast telegrams. This is indicated by
LEDs 7 and 8 ❺.
Pressing button A ❻or button B ❼for a long time exits manual operation.
Manual operation can be locked in the ETS database.
Summary of the states of the LEDs 5 –8 ❺:
LED Status
Meaning
LEDs 1 and 2 light green
Manual operation is active.
Forwarding of group telegrams via KNX TP is active.
LEDs 1 and 2 off
Manual operation is active.
Forwarding of group telegrams via KNX TP is not active.
LEDs 3 and 4 light green
Manual operation is active.
Forwarding of physically addressed telegrams and
broadcast telegrams via KNX TP is active.
LEDs 3 and 4 off
Manual operation is active.
Forwarding of physically addressed telegrams and
broadcast telegrams via KNX TP is not active.
LED Status
Meaning
LEDs 5 and 6 light green
Manual operation is active.
Forwarding of group telegrams via KNX RF is active.
LEDs 5 and 6 off
Manual operation is active.
Forwarding of group telegrams via KNX RF is not active.
LEDs 7 and 8 light green
Manual operation is active.
Forwarding of physically addressed telegrams, broadcast telegrams and
system broadcast telegrams via KNX RF is active.
LEDs 7 and 8 off
Manual operation is active.
Forwarding of physically addressed telegrams, broadcast telegrams and
system broadcast telegrams via KNX RF is not active.

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3 Reset to factory default settings
It is possible to reset the device to its factory default settings.
Disconnect the KNX bus connector ❸from the device.
Press the KNX programming button ❶and keep it pressed down.
Reconnect the KNX bus connector ❸to the device.
Keep the KNX programming button ❶pressed for at least another 6 seconds.
A short flashing of all LEDs (❷❹❺) visualizes the successful reset of the device to
factory default settings.
3.1 Factory default settings
In the factory default settings, the device has the physical address 15.15.0. Also, KNX Data
Security is disabled and the initial key (FDSK) must be used for secure commissioning.
Routing TP->RF
Group telegrams: Filter
Individual addressed telegrams: Filter
Routing RF->TP
Group telegrams: Filter
Individual addressed telegrams: Filter
4 Wiring scheme

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4.1 Line Coupler
The individual address of the KNX RF/TP Coupler 673.1 secure corresponds to the form x.y.0
(x, y: 1 … 15). Thus the device functions as a line coupler.
The device functions as a line coupler only if its individual address has the form x.y.0.
The KNX RF/TP Coupler 673.1 secure has a filter table and therefore helps to reduce the bus load.
The filter table supports the extended group address range (main groups 0 … 31) and is
automatically generated by the ETS.

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Wireless extension of a KNX line

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4.2 Segment Coupler
The individual address of the KNX RF/TP Coupler 673.1 secure corresponds to the form x.y.z
(x, y: 1 … 15, z: 1 … 255). Thus the device functions as a segment coupler.
The device functions as a segment coupler only if its individual address
has the form x.y.z.

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5 KNX Security
The KNX standard was extended by KNX Security to protect KNX installations from unauthorized
access. KNX Security reliably prevents the monitoring of communication as well as the
manipulation of the system.
The specification for KNX Security distinguishes between KNX IP Security and KNX Data Security.
KNX IP Security protects the communication over IP while on KNX TP the communication remains
unencrypted. Thus, KNX IP Security can also be used in existing KNX systems and with non-
secure KNX TP devices.
KNX Data Security describes the encryption on telegram level. This means that the telegrams on
the twisted pair bus or via RF (radio frequency) are also encrypted.
Encrypted telegrams are longer than the previously used unencrypted ones. For secure
programming via the bus, it is therefore necessary that the interface used (e.g. USB)
and any intermediate line couplers support the so called KNX Long Frames.
5.1 Security Proxy
A Security Proxy translates secure group communication from one side (e.g. secured KNX RF line)
into unsecured group communication on the other side (e.g. unsecured KNX TP area) and vice
versa.