KNX USB Interface

IP-Router / Interface between LAN and EIB/KNX bus IMG/png/abb_usb_interface_2.png

Application area

This interface is for establish a bidirectional connection between a PC and the EIB/KNX installation bus. The USB connector has a galvanic separation from the EIB/KNX bus. Both ETS (Engineering Tool Software) versions ETS and some computer-based tools, e.g. visualizations, support this interface.

Technical data

Electrical Safety

Protection (acc. EN 60529): IP 20
Bus safety extra low voltage SELV DC 24 V

EMC requirements

Complies with EN 61000-6-2, EN 61000-6-3 and EN 50090-2-2

Environmental requirements

Ambient temp. operating: -0 ... + 45 °C
Ambient temp. Non-op.: - 25 ... + 55 °C



CE norm

Complies with the EMC regulations (residential and functional buildings) and low voltage directive

Physical specifications

Housing: Plastic
DIN rail mounted device
Dimensions : 90 x 36 x 64.5 (W x H x D)
Weight: approx. 90 g


Signal-LED (green) for USB-Connection
Signal-LED (yellow) for Communication

Power supply

The part of circuit for communication over USB is supplied by the connected PC / Laptop, correct operation is signalled by the green LED (USB).
Power consumption: < 200 mW
The part of circuit for communication over EIB/KNX is supplied by EIB/KNX bus.
Power consumption: < 300 mW


EIB/KNX connection terminal
USB: USB connector type B
Wire length max. 5 m

33, rue Paul Gauguin - 31100 TOULOUSE - FRANCE