General
Product type	Function module
Function	Speaker and microphone
Size	2
Material	Aluminium
Colour	Silver
Compatibility	for electronics without flat ribbon cables
Application	Door intercom station Series 20
Manufacturer	Telecom Behnke

The product is a function module of the brand Telecom Behnke, type 20-1101-BS, specifically developed for integration into door intercom stations of the series 20. It serves as a module with integrated speaker and microphone to extend communication functions in a door intercom or door unlocking system. The module is designed in size 2 and enables a compact yet powerful integration into existing systems. The construction from aluminium ensures robust and long-lasting use, particularly in environments with increased requirements for mechanical stability and corrosion resistance.

Function module for door intercom stations
The module 20-1101-BS is a replacement or add-on module that is installed into existing door intercom systems of the series 20. It performs the functions of a speaker and a microphone, thereby enabling bidirectional voice communication between the outdoor unit and the indoor unit. Size 2 refers to the standard dimensions within the product family, ensuring compatible mounting in designated housing compartments. The dimensions are 90 mm in height and 90 mm in width, allowing for clear placement in typical door intercom housings.

Material and design
The module is made of aluminium, a material known for its high strength, low weight, and good heat dissipation. The silver-coloured surface is typical for aluminium components and fits visually into industrial or technical installations. The use of aluminium also ensures high resistance to external influences such as moisture or mechanical wear, extending the module’s service life.

Compatibility and application
The module is specifically designed for electronics that do not use a flat ribbon cable. This means it is compatible with systems that use separate lines for signals and power supply, instead of an integrated flat ribbon cable. The use without a flat ribbon cable requires a corresponding connection configuration that must be considered during installation. The ability to install into door intercom stations of the series 20 is given, allowing it to be used as a replacement part or for extending existing installations.

Scope of delivery
The installation requires knowledge of the electrical connection options of the respective door intercom system.

Technical design
The module is designed for use in industrial or commercial facilities where reliable communication via door intercom systems is required. The combination of speaker and microphone enables clear voice transmission, with the quality of communication depending on the quality of the electronics used and the installation. The dimensions of 90 mm height and 90 mm width are standardised and fit into most housings of the series 20. The silver colour is part of the standardised appearance of the product range.

Operation and integration
The integration of the module is achieved by mechanical mounting into the designated compartment of the door intercom station. The speaker and microphone functions are directly integrated into the module, so no additional components are required. Operational reliability depends on correct installation and the electrical parameters of the overall system.