8000 Series button expansion modules are used to achieve the required amount of call buttons for Videx audio or audio/video systems. Each module has a terminal connection that houses 2 terminals for each button. One side of each button is pre-linked making a common terminal and can be removed to provide a volt free button for the likes of a trade facility. Name plate windows are illuminated by LED. Modules are available as a 2 button (8842) up to a 5 button (8845) module. Double buttons modules are also available where 2 buttons share the same name plate window (8842D 4 button up to a 8845D 10 button). The modules are designed to fit the full range of 8000 series surface & flush back boxes and are also backwards compatible with the older Videx 800 series surface & flush back boxes. The front fascia is available in a stainless steel finish. Features Designed for various Videx audio and audio/video systems Tactile push buttons Illuminated name windows 2, 3, 4 or 5 button modules 4, 6, 8 or 10 double button modules (2 buttons share name window) Common single side of all buttons together