Installing new in-building data cables is intuitive and technically attractive. But this solution is expensive and installation creates a lot of nuisances. A more attractive alternative is to use already existing in-house infrastructure, which exists in two forms, telephone wires and a coaxial network for TV distribution.

Telecom operators prefer to use phone wires with VDSL. VDSL suffers from slow speed and is sensitive to interference. FTTB applications for apartment buildings have several benefits over FTTN street cabinet deployments. Local power supply is always available in the building and the climate is in-door. It is also possible to serve business customers with Gbps services, which provides higher flexibility. An FTTB installation is also more future-proof, since the fiber is available much closer to subscribers’ apartment than the FTTN street cabinets.