Thoreb has developed a number of slaves for different purposes, e.g. a panel decoding unit (for connecting a number of switches) and an input slave. The Panel decoding unit works as a control card for an interface panel with up to 96 buttons that can have backlight. It is also possible to use up to 68 LED's for function indication and control lamps. A complete panel can replace a number of functions in e.g. the dashboard in a bus. Below is an example of Thoreb's button that can be used together with our interface panel.