Originally Posted by
SmilingBoy
It also goes opaque automatically when there is a "Störung - Störung - Störung - Störung". For example every time in Aachen after they switch between German and Belgian power supply. After a few minutes it comes back ok.
This is only owed to the fact that the main swich is usually disconnected (and the bar lowered) at the Aachen Hbf distant signal (using the remaining speed to slide into the station), hence the opacity. The "Störung" announcement is caused by the train moving with the bar lowered which is obviously disapproved by the onboard software.
Would the window always switch to opaque when a "Störung" is issued, the windows would in fact be opaque during most of the trip...