| Basic Rate Interface (BRI) A kind of channel consisting of two 64 Kbit per second "bearer" (B) channels for user-data transfer plus a 16 kbps "delta" (D) channel for control and signalling information. A BRI provides a total data rate of 144 kilobits per second. The B channels are used for voice or data, and the D channel is used for signalling and/or {X.25} networking. BRI is the kind of ISDN interface most likely to be found in residential service. (1994-11-28) |
на заглавную 
к началу страницы