Интерфейс передачи данных Commubox FXA291 CDI/USB

The Commubox FXA291 is a intrinsically safe CDI (Endress+Hauser Common Data Interface) interface for transmitters. It converts signals at USB interface.

Your benefits:

  • Onsite commissioning of Endress+Hauser field devices
  • Easy to connect field devices with a CDI interface to a computer with a USB interface
  • Power is supplied to Commubox by means of the USB interface
  • Possible to supply power to the field devices by means of the CDI interface
  • Connection to intrinsically safe and non-intrinsically safe field devices
  • Suitable for Endress+Hauser operating programs such as FieldCare.

The communication between field devices and computer is realized by direct connection via CDI, via ToF adapter FXA291 or via additional adapter cable.

Measuring Principle

Communication Interface


Intrinsically safe CDI/USB interface for point-to-point communication with Endress+Hauser devices e.g. for parametrization using FieldCare.

Input signal type
  • CDI signal (Endress+Hauser Service protocol) from Endress+Hauser device

Output signal type

  • USB signal to computer (USB 1.1 or 2.0)

Power supply

From the USB interface of the PC, typically 5VDC.

Dimensions (W x H x D)

60.0 mm x 30.0mm x 120.0 mm; (2.36" x 1.18" x 4.72").
System requirements DVD/CD-ROM drive, Windows 2000 / Windows XP.

Certificates and Approvals

  • ATEX II (1)GD, EEx ia IIC


  • CSA, Class I, II, III/Groups A to G Ex ia