PRIMARY RATE INTERFACE (PRI)


Meaning of PRIMARY RATE INTERFACE (PRI) in English

An integrated services digital network ( ISDN ) interface standard (a) that is designated in North America as having a 23B+D channels, (b) in which all circuit -switched B channels operate at 64 kb/s, and (c) in which the D channel also operates at 64 kb/s. Note: The PRI combination of channels results in a digital signal 1 (T1) interface at the network boundary.

Telecommunication standard terms English vocab.      Английский словарь стандартных телекоммуникационных терминов.