The Interra ITR901-0003 is a KNX USB interface that connects a PC to the KNX twisted-pair bus for ETS commissioning, addressing, diagnostics, and visualisation. Galvanic isolation separates USB and KNX; HID support means no proprietary USB driver is required on typical Windows hosts.

The device is powered from both KNX and USB — no auxiliary PSU. Front LEDs indicate USB/KNX link and telegram traffic.

Key Features

• cEMI / FALCON: Works with ETS and compatible tools as the current bus interface.
• HID profile: Plug-and-play USB recognition.
• Compact MDRC: DIN-rail housing for the distribution board.

At a Glance

Specification	Detail
Order code	ITR901-0003
Product type	KNX USB Interface
Brand	Interra
Bus / system	KNX (TP) / related Interra infrastructure
Configuration	ETS (S-mode) where applicable