I finally got the signals which I ordered in January. They are now installed, and here are a couple of pictures taken during that work. Click any of the pictures to view them in a bigger size.

I selected Viessmann signals for my layout.  There are altogether 14 signals on the layout, both color and form signals.  All different types are shown here, together with some stuff needed for installation. All signals are controlled digitally by Viessmann 5211 decoders. Here two 5211 decoders have been installed below the baseboard, and one three aspect signal has been installed above.  Viessmann signals feature long cylinder shape solenoid, which comes through the landscape structure and the baseboard.
In this picture a total of 8 signals can be seen.  They control the entry and exit of all the tracks at the station area. Here is a night shot of the passanger train leaving the station with the exit signal showing "proceed".
The shunting yard is equipped with a yard signal.