Bus participants, Cabling and distribution box | The KNX protocol has many components that can be linked. There are various suppliers who are allowed to make and supply KNX components. There are about 500 Manufacturers and more than a thousand KNX registered/certified products on the rise. This is only possible by putting a good protocol behind it. KNX is this protocol and therefore have market share within the home automation sector. In this lesson we will look at the various components and type of cabling. We also look at the contents of a distribution box. We will look at what you need to take into account when assembling a distribution box.