Division 4.2.7 Trackside Interfaces Internal to Control-Command United Kingdom Original text. Later amendments are not shown. This Basic Parameter consists of six parts. 4.2.7.1Functional interface between RBCs 4.2.7.2Technical interface between RBCs 4.2.7.3GSM-R/RBC 4.2.7.4Eurobalise/LEU 4.2.7.5Euroloop/LEU 4.2.7.6Requirements on pre-fitting of ERTMS track side equipment ← Division 4.2.6.3 Division 4.2.7 Division 4.2.7.1 →