A number of additional drawings also have to be produced. However, these drawings can be used on any site. First of all, there is the drawing to show where a certain pushbutton is installed at an operating point. If we have to connect four pushbuttons under one cover plate, which pushbutton is then No. 1, 2, 3 of 4? The drawing below makes this clear. This drawing has been produced for use with Bticino pushbuttons. If another brand of pushbutton is used (Berker, Gardy, Gira, Jung, Legrand, Lithoss, Merten, Niko, Peha, Siemens, Simon, etc) an appropriate drawing will of course have to be produced with a number of possible combinations.
Figure 25: An example of possible arrangements for Bticino pushbuttons.
The top two rows show a few options for the use of an E503 mounting box. In the bottom two rows we see a few options in combination with an E504 mounting box. Note that both full size and half size pushbuttons have been used.
Every cable to the pushbutton locations is given a label in the table for the connection of the pushbuttons (A1, A2, etc). In order to proceed in an orderly manner, it is better to connect the wires of these cables to terminal blocks. In order to save space in the fuse box, we use double layered terminal blocks. We use the following drawing for the correct connection of the colours.
Figure 26: Connection of the SVV cables to the terminal block.
In the fuse box we will place a number of these terminal blocks next to one another for the different cables. If we use the same order of colours for every cable, we can instantly see where a new cable starts each time, i.e. whenever there is a white wire. The above colours are only an example. They will have to be adapted to the colours in the cable used by the installer.