Translations:How to operate relay line block equipment/57/en

SBL-Signal 2955 between  Dąbrowa Górnicza Ząbkowice and Dąbrowa Górnicza. It displays S2 aspect (Clear). We can see another SBL-Signal of the opposite direction. In the background there is a relay container controlling both block signals.

The automatic blocks signals themselves are always train-controlled and cannot be operated in the signal box. They are not equipped with a replacement signal. At the same time, the automatic block signals always have the functionality of a main and a distant signal at once.