submarine branching unit

With the development of submarine branching units (SBUs), more than one destination could be served by a single cable system.

The landing will either be direct (in the case of a point-to-point cable system) or via a branch from a main cable using a submarine branching unit.

A submarine branching unit is a piece of equipment used in submarine telecommunications cable systems to allow the cable to split to serve more than one destination.

The conventional symbol used for a submarine branching unit in maps of cable routes is a small equilateral triangle with (usually) one vertex pointing towards the top of the map.

Pentaskhinos connects to Catania by adding a submarine branching unit and a new segment to the existing MedNautilus system, and Yeroskipou connects to Mazara del Vallo by upgrading the relevant part of the LEV cable system.