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MPI400 Flexa

Intercom / Paging device with contact closure inputs, relay outputs, Line and Mic / Speaker support

The MPI400 FLEXA is a PoE powered device that supports the FLEXA ecosystem providing mono audio input (line level as well as balanced, phantom powered microphone input) and an audio output (line level out and speaker (1W into 8 Ohm) as well as symmetric/balanced output). It also supports 2 digital dry contact inputs and 2 relay. This features makes the MPI400 FLEXA the ideal platform of all kinds of customised intercom and control applications. Where audio needs to be transported both ways and where control support is requested, for example to initiate a call with a call button or to switch a door opener or turn on a light. FLEXA is an ecosystem to develop simple applications that run on Barix Flexa devices. The advantage of FLEXA is that it doesn’t require to compile code and produce images to make a device solving a specific problem. The only thing required is to write a program that runs on the Flexa devices and that can be deployed on the same. FLEXA applications can be programmed by Barix as a service and are distributed over the cloud using the Barix FLEXA distribution mechanism.

CPU / Memory

  • Barix IPAM400 Processor Module
  • Quad-Core ARM CortexTM -A7
  • 256 MB DDR3 SDRAM
  • 16 MB SPI Flash

Operating System

  • Embedded Linux based on Yocto

Power interface

  • 24 VDC, +/- 20%, 12 Watt max.
    on detach. screw terminal block
  • IEEE 802.3af PoE

Network interface

  • 10/100Mbps auto-sensing
  • RJ-45 connector with integrated Link /Activity LED
  • IPv4/IPv6 capable
  • Protocols: TCP/IP, HTTP, UDP, RTP, SIP, DHCP, Multicast capable

USB Interface

  • 2x USB 2.0 type A interfaces
Discrete I/O

On detach. screw terminal block:

  • 1x Normally open relay 30V 0.5A
  • 1x Normally closed relay 30V 0.5A
  • 2x digital dry contact inputs

Audio input interfaces

On detach. screw terminal block:

  • Line level input +4dBu max, mono, unbalanced
  • Microphone input, balanced, 18V phantom powered
  • Microphone input, electret, unbalanced, 2.1V bias

Audio Output interfaces

On detach. screw terminal block:

  • Audio output (mono), suitable to drive a speaker or a balanced output (exclusive output).Speaker: 1W @8ohms
    Line out: symmetric/balanced,
    non-isolated, with DC offset, 10dBu (unbalanced: 4dBu)volume level software controlled
  • 3.5mm headphone output
IP Audio formats

  • FDX/HDX SIP client support
  • HTTP(S) and (S)RTP Streaming
  • Large variety of codecs can be supported (e.g. MP3, PCM, G.711, G.722, AAC+, OPUS)

User Interface

  • Web interface for configuration
  • 2 x Multicolor LED Status indicators
  • Reset & Factory Defaults Button


  • Aluminum case, 265 g
  • Dimensions 108 x 38 x 78.7mm
    (4.25 x 1.5 x 3.1 inch) rack and wall mountable using accessories


  • Two years

Annuncicom MPI400 (Made in Europe)

2021.9330P MPI400 PoE Package

Annuncicom MPI400 Informacast

2022.9372P InformaCast Package (must be ordered with InformaCast License)

2019.3160 InformaCast License (must be ordered with device)

Get in touch with Barix

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