4000 Series button expansion modules are used to achieve the required amount of call buttons for audio or audio / video door entry systems. Modules are available with 2, 3, 4 and 5 buttons. Double button modules are also available with 4, 6, 8 and 10 buttons, where 2 buttons share the same name plate window. There are two variations of button modules available depending on the 4000 series audio or audio / video system being installed. Each module has a terminal connection that houses 2 terminals for each button where the buttons, depending on jumper settings, can have a common terminal or each button can have its own common. 4042 Up to 4045 and 4042D up to 4045D for audio / video 4000 series modules with the built-in IDC connector. Each module has a series of jumpers that when set in a specific position configures the buttons to work through the IDC connector. These button modules also require CFL17 (supplied) and CFL45 IDC ribbon cables to link between modules.
