8
Operating Manual U 124 16-programme IP / FM converter
2.8.2 Installing the backplane
In its state on delivery, the back of the U 100 base device is covered with blind panels:
Figure 2: Position of the blind panel on delivery of U 100
To remove the blind panel, unscrew the two Phillips screws indicated in the above figure and
remove the blind panel. The cables now visible must be connected to the backplane coded
according to chapter 2.8.1, as shown in the following figure:
Figure 3: Connecting the voltage supply and signal lines
The backplane is now carefully inserted into the free slot of the U 100 base device and screwed in
with the Phillips screws of the backplane. Here you must ensure that the cables are not jammed
and that the backplane can be installed in the housing with only a small amount of pressure.
Figure 4: Correctly installed backplane
8
Phillips
screws
