– TTR installations for the safety of train traffic and shunting operations;

– TTR operating installations for coordinating the train traffic and the activity of the railway units;

– Computing equipment (TC) installations.


a) assembly / disassembly of the component elements of the installations:
• Airlines and air introductions;
• Cable lines and cable inserts;
• TTR devices;
• Installations for endorsing / informing the traveling public;
• Installations for data transmission;
• Computer technology installations;
• Protection installations at T.T lines;
• Indoor wire installations;
• Video surveillance / recording installation, duplex intercom system and access control.
b) checks, adjustments, static functional tests
c) correction of errors and functional deficiencies detected.