
Glossary
2B+D See BRI (Basic Rate Interface).
23B+D See PRI (Primary Rate Interface).
30B+D See PRI (Primary Rate Interface).
802.2IEEE Standards that govern the LLC within the Data Link layer of the OSI model. LLC frames carry user information between the nodes on a network and define the transmission of a frame between two stations. These standards are common across the various lower level standards within the Data Link and the Physical layers.
802.3IEEE Standards that govern the use of the CSMA/CD (Carrier Sense Multiple Access/Collision Detection) network access method used by Ethernet networks.
802.5IEEE Standards that govern the use of the token ring indicator and frame priority.
Adapter A device, usually a user interface card, that physically connects an end station to the network medium (for example, twisted pair, coaxial, fiber).
Advanced
AIS (Alarm Indication Signal) PRI alarm, also known as Keep Alive or Blue signal.
AMI (Alternate Mark Inversion) A method of digitally encoding data as electrical signals on a link.
ANSI (American National Standards Institute) An organization which coordinates, develops, and publishes standards used in the United States.
APPC Advanced
6.2product feature in particular, such as an APPC application pro- gramming interface.
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