The FTTH broadband fibre optic network architecture system is an example of an FTTx solution. Depending on where the fibre optic cable is being routed to, x may stand for: H- Home, N- Node, Cab- Cabinet, C- Curb, B-Building, , D-Desk.

In the case of the FTTH system, we can distinguish two models – MDU (Multi Dwelling Unit) with solutions designed for building networks in multi-family buildings, and SDU (Single Dwelling Unit) dedicated for a single family construction.

In the case of MDU, the initial connection is made to the building, where a distribution point, vertical cabling and horizontal cabling and subscriber end-devices are then installed.

The building distribution point is used for distributing fibre (in P2P networks) or signal (in PON networks using couplers) from the optical fibre connection to individual homes. Vertical cabling can be installed using the classic technique with internal cable, or by using easy access cable.

The SDU model assumes that fibre is brought into the building using microducting, direct underground cable (DAC cables) or overhead. Irrespective of the technique used to install the connections, distribution points in the form of external distribution cabinets or posts are required in this type of the network. Individual connections from the distribution network are routed to individual buildings, where termination boxes are used, mounted internally or externally, along with culverts for routing cables through the building façades.

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