KHBS Module


The KHBS Module enables comprehensive building automation. Lighting, heating, ventilation, blinds, security systems, and multimedia are centrally controlled. Energy management, remote access, and integration of various device manufacturers are possible.

The KHBS Module enables EN 50090/13321 connectivity and can be used with the KNX* bus.

The key features are:


  • Supported by open source driver
    • Can be used for programming over the network (TCP/IP Gateway).
  • Based on KNX EIB TP-UART 2 IC
  • Automatic detection by USB descriptor.
  • Supports hard reset and bus voltage detection by FTDI/GPIO interface.


  • Compatible standards/protocols:
    • KNX*
    • EN 50090
    • EN 13321
    • GB/T 20965
  • USB<->Bus circuit galvanically isolated by opto-isolators.
  • Reverse polarity protected.
  • ESD and fuse protected.
  • Circuit is bus powered.
  • Dedicated RX&TX Leds.
  • LEDs for bus assignment, overtemperature and bus voltage failure.

Hardware Specification

Operating voltage 20V - 30V
Typical operating current 10mA
Max. operating current 15mA
Absolute maximum voltage 0V - 35V
Operating (ambient air) temp. range 0°C – 50°C
Storage temp. range -25°C – 85°C

* The compatibility is not certified, it is a third-party accessory.

Release date 2023-12-01
Current hardware version 1.2.2
Bootloader support limited
Protocol USB-2.0-12Mbit
Product information last updated 2024-02-26
Dimensions 125x24.4x80mm (LxWxH)
Further documentation and manuals