Videx 4000 series information and call button modules
Button expansion modules for Audio or Video systems
Button expansion modules (with single or double row buttons) are used together with audio or audio/video modules to achieve the required number of call buttons for a system.
Each module has a terminal connection that has 2 terminals for each button: the buttons, depending on jumper settings, can have a common terminal or each button can have its own common (when used with the VX4203 on digital systems)
Available in various models.