“Fiber To The Building” or “Basement” depending on interpretation. In this scenario, optical fibreOptical fibre A cable made of glass fibre through which a light signal is transmitted over long distances for broadband network access. Compared to copper cables, optical fibre can transmit signals much faster, up to 40 Gigabits per second. It is therefore ideal for quickly transferring large amounts of data; it is also unaffected by external interference (electromagnetic interference, temperature variations, etc.). While fibre optics certainly offers the advantage of fast, high-quality and secure data transmission, its high installation cost is a drawback for network builders. Read the news to find out more: “Optical fibre, what it is and how it works”. is laid right up to the threshold of a building or within a common space, such as a cellar or basement. The connection to individual flats then continues with other technologies, typically using copper.