broadband network termination (B-NT)
In B-ISDN, a distinction is made in the network termination between the two terminations B-NT1 and B-NT2.
B-NT1 represents the network termination of B-ISDN networks at the reference point T (B) with the functions: Termination of transmission line, handling of transmission interface and OAM functions.
B-NT2 represents the network termination of B-ISDN networks at the reference point T (S) with extended functions compared to B-NT1, such as concentrator function, buffering, handling of the signaling protocol, etc.