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Barix IPAM-302: IP-Audio Module for Encoding and Decoding

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Part #: Barix IPAM-302
Barix Part #: 2011.0079

The Barix IPAM-302 is an IP Audio encoding / decoding module, one serial port, 4 digital I/O, 3.3V supply

The IPAM 302 is a universal, standalone, IP Audio function block which can be easily embedded into OEM products. The module encodes and decodes IP Audio streams from/to analog sources (stereo). Supporting a large range of protocols and codecs the module can be used for both VoIP and IP paging as well as high quality music distribution and IP music streaming applications. Control I/O (one serial port, four digital inputs/outputs) allow the use with UI and control interfaces.

Various software packages for standard applications are available for download from the Barix website, optimized for encoding, audio distribution, paging and intercom, including a full featured SIP client. Custom software can easily be written, based on existing packages from Barix written in the ABCL language.

For hardware integration a development specification with schematic, pinout and suggestions for the layout of a custom carrier PCB is available. Barix Annuncicom-60 and Instreamer are based on this module.

The IPAM302 is pin compatible with the Barix IP AUDIO MODULE 300 (decoder only), adding the full duplex capability on the same form factor and power supply.

G.711, G.722, PCM , MP3 Encoding
USB Flash Memory Interface
Supply Voltage (3.3V)
RS-232 Serial Port (TTL Level)
General Purpose I/O (4)
Line Level Output (Stereo)
Line Level Input (Stereo)
Microphone Input
IP Streaming via TCP, UDP, RTP, Multicast
Audio Level Supervision with SNMP Trap generation
Shoutcast/Icecast Source capability
AACplus, MP3, Ogg Vorbis, G.711, G.722, PCM linear Decoding

    Audio Interfaces
    Mic input 118 mVpp max. (with Bias power)Stereo input 2.2 Vpp max., both adjustable insensitivity
    Frequency response 20Hz ... 20kHz (-3 dB)
    Dynamic range 90 dB, SNR -89 dB, THD <0.03% (-3 dBFS) Stereo Output 2.37 Vpp max. volume, bass and treble adjustable
    Frequency response 20 Hz ... 20 kHz (-3 dB)
    Dynamic range 90 dB, SNR -90 dB, THD <0.05% (-3 dBFS) I2S bus (inter-IC Sound)

    Audio Formats
    I2S bus (Inter-IC Sound), Analog stereo out 1.5Vpp
    Volume, base and treble adjustable by application
    G.711 and G.722
    PCM 16 bit and 8 bit (uLaw, aLaw) @ 8..48Khz
    MP3 encoding/decoding up to 192/320 kbps
    AAC+(deconde only)
    Note: AAC+ requires separate licensing by OEM

    Network Interface
    10/100 Mbit Ethernet (Auto), TCP/IP, UDP, RTP, HTTP, DHCP, SNMP, AutoIP, SonicIP, IPzator

    Misc. Interfaces
    TTL Level UART 300..230’400 Baud
    Outputs for 2 dualcolor Ethernet status LEDs
    4 General Purpose I/Os, 1 input for reset button,
    2 status LED outputs, USB1.1 interface for memory

    CPU / Memory
    Integrated CPU / MAC / IO controller with on-chip 256 KB RAM, 2 KB EEprom (configuration), 2 MB Flash memory (application and web server content)

    Operating System
    Embedded, robust OS, IP stack with Multicast supportUser / Application Interfaces
    Integrated web server (control/configuration), browser based, serial or Ethernet control API, programmable software environmentPower requirements

    Power requirements
    Single 3.3 VDC, 1.6 Watt max.

    Weight, dimensions
    14 g approx.
    2.2“ x 1.3“ x 0.39“, 56 mm x 33 mm x 10 mm

    Min. 1200 000h acc. to MIL217F at 40°C

      Barix Downloads, How To's, Manuals and Documentation