General
Front panel	Aluminium in V2A design
Material thickness	4 mm
Colour	Silver
Number of call buttons	2
Compatibility	for electronics without flat ribbon cables
Button illumination
Label field illumination
Anti-rotation protection

The 20-2023-BS function module from Telecom Behnke is a replacement or add-on module for door intercom stations of series 20. It enables the integration of two separate call buttons into an existing system, with each button field combined with an illuminated label field. The front trim panel is made of aluminium in V2A design, providing a robust and aesthetically pleasing surface. The module dimensions are 90 mm in height and 90 mm in width, with a front trim panel material thickness of 4 mm. The front trim panel colour is silver. The module is specifically designed for electronic configurations that do not use flat ribbon cables.

Applications
This module is intended for use in industrial and commercial door intercom systems, particularly in installations of series 20. It allows the expansion of existing systems by adding two additional call points, with the label fields facilitating assignment to specific rooms or persons. The illumination of the buttons and label fields ensures good visibility even under low ambient lighting, which is advantageous in halls, warehouses, or production areas.

Functions and Equipment in Detail
The module features two call buttons, each equipped with a label field – one positioned above, one below. Both buttons and their corresponding label fields are illuminated, enabling operation even in dark environments. Installation is simplified by an integrated anti-rotation device, ensuring the module can only be inserted into the door intercom station in the correct orientation. The aluminium front trim panel in V2A design offers high mechanical stability and is resistant to corrosion.

Technology Explained Simply
The illumination of the buttons and label fields is achieved through integrated light sources powered by the door intercom station’s electrical supply. The use of aluminium in V2A design (equivalent to stainless steel with at least 18 % chromium and 8 % nickel) ensures high corrosion resistance and mechanical strength. The 4 mm material thickness provides stable mounting and prevents deformation under mechanical stress.

Compatibility and Accessories
The module is specifically designed for door intercom stations of series 20 from Telecom Behnke. Use in other systems is not intended and not guaranteed.

Installation and Mounting
Mounting is performed by inserting the module into the designated opening of the door intercom station. The integrated anti-rotation device ensures the module can only be installed in the correct orientation. Electrical connection is made via the existing wiring of the door intercom station, with wiring to be carried out according to the technical documentation of the overall system.

Operational Advantages
The integrated illumination of buttons and label fields improves usability in poorly lit areas. The robust aluminium front trim panel in V2A design provides high mechanical stability and is resistant to dirt and corrosion. Clear labelling allows for quick and unambiguous identification of call points. The module is easy to install and extends existing systems without requiring additional electrical components.

Scope of Delivery
The 20-2023-BS module is delivered as a single component. The scope of delivery includes the module with two illuminated call buttons and two illuminated label fields, front trim panel made of aluminium in V2A design, material thickness 4 mm, dimensions 90 x 90 mm, including anti-rotation device.