Welcome! You are logged in.

Annuncicom 155

Industrial, ruggedized device with dual Ethernet supervised Mic/Speaker and control interface, rail certication

IP Paging and Intercom codec device for demanding environments and security applications. Dual Ethernet, supervised mic/speaker and IO, wide operating range and vibration/shock proof, IP65 rated. Useable as paging gateway, small zone device and Intercom device.

Main Features

  • MP3, G.711, PCM Encoding and Decoding
  • Audio Level Supervision with SNMP Trap generation
  • IP Streaming via TCP, UDP, RTP, Multicast
  • Microphone Input
  • Line Level Output
  • Amplified Output 5W (8Ohm)
  • Contact Closure Input (2)
  • Current sourcing LED Output (1)
  • RS-485 Serial Port (1)
  • Dual Ethernet
  • Supervised Speaker/Mic and Control Interface
  • IP65 rated, EN50155: Railway applications - Electronic equipment used on rolling stock
  • Temperature range (-40..+70‘C)
  • Supply Voltage (24 to 48 VDC ± 30%, <60 V)

Designed in Switzerland and installed in tens of thousands of locations worldwide, the Barix Audio Devices are the established standard for VOIP and Audio over IP applications alike.

Technical Specifications


24 to 48 VDC ± 30%, <60 V, 14 Watt max.

M12 "A" connector (male)



2x 10/100Mbps auto, MDI/MDI-X, Link & Activity LEDs

per interface, Internal switch, Protocols: TCP/IP, UDP, RTP, SIP, DHCP

M12 "D" connector (female)



300..230'400 Baud asynchronous, 7/8 bit

+12V, 100mA, fused supply output to external devices

M12 "A" connector (female)


Line out

max. 11 dBm @ 600 Ohm, max. 12 dBu (FS), unloaded

Output impedance 40..45 Ohm, 14 mWatt max

Values @ 600 Ohm: Freq. response 20 Hz .. 20 kHz


Dynamic range 80dB, SNR -80dB, THD <0.15% (-3dBFS)*

Output level software controllable


Speaker out

5.0 Watt RMS max @ 8 Ohm

Values @ 8 Ohm: Freq. response 10 Hz .. 15 kHz (-3dB),

Dynamic range 82dB, SNR -82dB, THD <0.1% (-3dBFS)*

Output level software controllable


Microphone in

Electret mic, supervised bias power (2.4..4 VDC)

Frequency response 50Hz ..20kHz (-3dB)*

Dynamic range 70dB, SNR -70dB, THD <0.05% (-3dBFS)*

input sensitivity software controllable

Audio formats

MP3, encoding/decoding up to 192/320kbps

PCM 16bit @8, 16, 22.05, 24, 32, 44.1, 48 kHz

G.711, uLaw, aLaw (sample rates same as PCM)


Discrete I/O

2 fully supervised inputs

1 LED driver output, current limited

internal temperature sensor

2 status LEDs (red/green)


Panel interface

Sub-D 15 connector, all audio and I/O signals



Aluminum case, 460 g, with mounting wings


Min. mounting space incl. plugs (W x D x H)

230 x 138 x 47 mm (9 x 5.43 x 1.85 inch)


Dimensions (W x D x H)

130 x 108 x 38 mm (5.12 x 4.25 x 1.5 inch)



Calculated acc. MIL217F at 40°C

Min. 80 000h at "ground mobile" environment

Min. 225 000h at "ground fix" environment

Calculated acc. IEC62380 Standard

Min. 110 000h at “ground; non stationary; severe”


* depends on used codec, best results @48kHz PCM


Annuncicom 155 Accessory Kit

24V power supply with M12 “A” connector

Sub-D 15 connector for Panel interface

M12 “A” connector for RS.485 interface

M12 “D” to RJ45 ethernet cable

Order number: 2010.9099

VSC Active Adapter



Order number: 2014.0095

Cable set XLR Audio



Order number: 2008.9089

Use Cases

Classroom VoIP device with built-in amplifier, talkback, serial port

Microphone Encoder for IP Audio Surveillance

Door Intercom Controller, VoIP based

Help Point/SOS call box device

Live IP Audio Encoder for Streaming Applications

SIP and IP Paging Zone Device

Digital Annunciator, Message Player, Message Repeater

Contact us about the Annuncicom 155

We can help you build the ideal solution. Send us a quick message and we will return your inquiry as soon as possible.

By sending this form you are agreeing to our Terms of Service and PrivacyPolicy.

Contact us for more information


Ordering Numbers

  • 2010.9098

    Annuncicom 155


    Device only. Power supply and mating connectors are offered separately as the accessory kit, below

  • 2010.9099 Annuncicom

    155 Accessory Kit contains


    - 24V power supply with M12 “A” connector

    - Sub-D 15 connector for Panel interface

    - M12 “A” connector for RS.485 interface

    - M12 “D” to RJ45 ethernet cable

Documents & Downloads

Quick Install Guides

Product Sheets