KNX IP BAOS 774.1 secure

 KNX IP BAOS 774.1 secure

The KNX IP BAOS 774.1 secure is used as Interface for connecting to KNX both on telegram level (KNXnet/IP Tunneling) and on datapoint level (KNX Application Layer). Clients can directly access group objects over TCP/IP via a binary protocol.

The device is configured with the ETS and supports up to 1000 group objects. 10 simultaneous client connections are supported via the BAOS protocol.

BAOS is an acronym for “Bus Access and Object Server”. It is possible to connect to the KNX bus everywhere over LAN. Bus connection over the internet with KNX IP BAOS 774.1 secure is also possible.

The buttons are for diagnostic purposes. The LEDs indicate the operating status and communication errors on the bus.

Power is supplied via the KNX bus. The device supports KNX Security and BAOS Security.

Technical data

Mechanical data

  • Housing: plastic (PC)
  • DIN rail mounted device, width: 1 unit (18mm)
  • Weight: approx. 40g

Controls and indicators

  • 2 buttons and 3 LEDs (multicolor)
  • KNX programming button with LED (red)


  • 100BaseT (100MBit/s)
  • Supported internet protocols ARP, ICMP, IGMP, UDP/IP, TCP/IP, DHCP and Auto IP
  • Up to 8 KNXnet/IP Tunneling connections simultaneously
  • Up to 10 connections simultaneously via BAOS
  • KNX BAOS Binary Protocol V2.0 with Security


  • Medium TP
  • KNX Security (AES-128)
  • Long Frame
  • Device Model System B
  • Max. Communication Objects: 1000

Power supply

  • KNX Bus approx. 15 mA


  • Bus connector for KNX (red/black)
  • LAN RJ-45 socket

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