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Legacy Paging system extension for schoolExtremely Reliable

Paging system extension with low delay over fiber optic network. Extend a paging system to a remote zone, connected over fiber optic. The audio must be in sync.

No new cables needed using existing fiber optic backbone.
Very low delay with PCM 16bit@44Khz stereo RTP encoding (around 50 ms).
Balanced audio I/O.
Contact relay to power up the amplifier on incoming audio.

Solution: STL firmware on both Exstreamer 500

Barix proposed a solution based on a couple of Exstreamer 500, one acting as encoder and one as decoder.

Structure of the Setup

Why Barix

Reliable and Solid

We create products that last. Buy it once and it runs. Certified and tested in real-life to run 10+ years. 

Specialized Support

The Barix support team contains of audio experts. We help you individually for each specific architecture. 

Up to date

Check the downloads for the latest firmware updates. Barix products are compatible with your system. 


Barix Products can be customized to special requirements. Either by yourself or from our professional audio development team.

More information on the products

Feel free to write us a message with your requirements. Our Pre-Sales teams can help you find a simple and cost-effective solution.



Annuncicom 500

  • MP3, G.711, PCM Encoding
  • MP3, G.711, PCM, AACplus*, Ogg Vorbis* Decoding
  • Shoutcast/Icecast Source capability
  • Audio Level Supervision with SNMP Trap generation
  • IP Streaming via TCP, UDP, RTP, Multicast
  • Balanced Line Level Input (Stereo)
  • Balanced Line Level Output (Stereo)
  • Relay Output (4)
  • Contact Closure Input (4)
  • RS-232 / RS-485 Serial Port
  • USB Flash Memory Interface
  • Supply Voltage 24...48 VDC


Technical details

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