Connection area
A connection area ( AsB ) identifies an area in the access network of a telephone network in which the network connections of the subscribers are supplied via the subscriber connection line through a single main distributor .
A local network is made up of one or more connection areas. In metropolitan area networks there are z. T. a double-digit number of connection areas, while in rural and suburban areas a connection area next to the locality or the district where the main distributor is located usually also includes surrounding localities within a radius of up to five kilometers. The resulting long subscriber lines with high line attenuation make it difficult to supply DSL and migrate to a next generation network topology in these access areas.
Today there are a total of 5,200 local networks in the Telekom Deutschland network - each local network has its own area code - with 7,900 connection areas.
In local networks with several connection areas, these were numbered consecutively, with individual connection areas being dissolved in the course of digitization of the network; the historical numbering of the remaining connection areas was retained.
In the days of analog telephone switching technology , the leading digit of the call number was assigned to individual connection areas in local networks with several connection areas.
At the main distributor location of the connection area there is also a local exchange or a remote peripheral unit of the classic telephone network and usually DSLAMs for providing DSL access. In addition to the established network operator , competing network operators can also maintain collocation with their own technology at the main distributor location in order to connect the subscribers to their network via the subscriber line of the established operator.