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 (Logical Link Control) within the Data Link layer of the OSI model. LLC frames carry user information between the nodes on a network and define the transmis- sion 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 (Car- rier 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 Program-to-Program Communication ◆

See APPC.

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 ◆ AdvancedProgram-to-ProgramCommunications.Thegeneral facility characterizing the LU 6.2 architecture and its various implementations in products. 2. Sometimes used to refer to the LU 6.2 architecture and its product implementations as a whole, or to an LU

6.2product feature in particular, such as an APPC application pro- gramming interface.

iSPAN Serial WAN Adapter Users Guide

195