Definitions for "User Network Interface"
Keywords:  atm, uni, devoice, hdt, nni
The interface between the terminal equipment and a network termination at which interface the access protocols apply Example: In B-ISDN terminology this is the interface between the broad band network terminating equipment(B-NT1), and the users equipment. The UNI is the Interface at the TB Reference Point . source: ITU-T Glossary domain: General acronyms: UNI usage: EU-P103
The protocol defines connections between ATM end-stations and the ATM switch including signaling, cell structure, addressing, traffic management, and adaptation layers.
(1) ATM Forum specification; interoperability standard for interface between ATM based routers or switches in private networks, and ATM switches in public carrier networks. A physical layer interface that provides physical layer services to an NNI. (2) Aka cable voice port or voice port; in cable TV networks, a devoice that modulates/demodulates the DS0 voice upstream/downstream channels, located at the telephone subscribers premises - sent by the Host Digital Terminal (HDT) located at the cable TV head end, providing connection to the customer's telephone wiring.