Installation system for the bus technical field

摘要

The system has a coupler (4) for fitting in a standardized in-wall box for diverse bus systems with a bearer ring (5), whereby the coupler and bearer ring are permanently connected, an operating/display element (7/8) with an upper part (7) and at least one electronic unit (8) for fitting in a standardized in-wall box, whereby the upper part and electronic unit are permanently connected, and at least one free bearer ring (6).