Basic Rate Interface
(redirected from Basic rate access)Also found in: Acronyms.
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 a
total data rate of 144 kbps. The B channels are used for
voice or user data, and the D channel is used for control and
signalling and/or X.25 packet networking. BRI is the kind
of ISDN interface most likely to be found in residential
service.