Basic Rate Interface


Basic Rate Interface

(communications)(BRI, 2B+D, 2B1D) An Integrated Services Digital Network channel consisting of two 64 kbps "bearer"(B) channels and one 16 kbps "delta" (D) channel, giving atotal data rate of 144 kbps. The B channels are used forvoice or user data, and the D channel is used for control andsignalling and/or X.25 packet networking. BRI is the kindof ISDN interface most likely to be found in residentialservice.