Adapter for connecting a loudspeaker system to an analogue extension connection of an ICT system

Adapter for announcements over the ICT system

Ideal for waiting rooms, supermarkets and shopping centres

Acoustic announcement warnings possible

Almost any ICT system can easily be connected to loudspeaker systems

Operation and supply via an analogue extension connection of an ICT system

Your advantages in detail

With the a/b Audiobox, loudspeaker systems can quickly and easily be coupled to almost any ICT system. To do this, the box is simply switched between an analogue extension on an ICT system and the amplifier input for a loudspeaker system, for example. If the a/b Audiobox is called via the extension, it automatically accepts the call and connects to the announcement system. The integrated switch relay can be used to select the loudspeaker zone of the loudspeaker system. The announcement can be preceded with an acoustic warning if required.

The a/b Audiobox is suitable for amplifiers and loudspeaker systems with an NF input (300 mVeff / 600 Ω).

Compatible products

Features & technical data

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Supply connection 

ICT system analogue port

Type of dialling


Technical Data



Operating voltage via analogue port

16 V – 60 V DC

Loop current, depending on operating mode

<1 mA (idle mode) / 20 mA – 60 mA (announcement)

Power consumption

approx. 60 mW (idle mode)

Output level

300 mVeff max., internal resistance 600 Ω

Contact load capacity of switch relay

30 V max. / 1 A

Casing material

plastic, two-part


ø 95 mm x 33 mm


approx. 90 g

Protection rating


Delivery Scope

  • a/b Audiobox
  • Connection cable RJ-11/RJ-11 (ca. 3 m)
  • Adapter TAE-F/RJ-11
  • Setup- and short manual
  • Mounting material (Crews and dowel)

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Best Practice

Telecommunication solutions for wholesale and retail – DIY store

Supporting food shops and supermarkets with sales

Employees: 34

"We have recently added a COMmander 6000R specifically as part of a comprehensive solution that makes our work much easier. First of all, this PBX provides every imaginable telephony comfort. But, in addition to this, the system also controls many more things such as announcements in the sales room …

Peter W. Managing Director

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