Glossary

initialize

To start up the system for the first time.

input

A signal fed into a circuit or channel.

integrated services digital network (ISDN)

Anetwork that provides end-to-end digital connectivity to support a wide range of voice and data services.

integrated voice processing CELP card The IVC6 card.

interface

The device or software that forms the boundary between two devices or parts of a system, allow- ing them to work together.

interrupt request (IRQ)

A device that signals the data bus and the CPU that it needs attention.

INTUITY AUDIX Digital Networking

An INTUITY feature that allows customers to link together up to 500 remote INTUITY machines for a total of up to 500,000 remote subscribers. See also digital networking.

I/O address input/output address.

IRQ

See interrupt request.

ISDN

See integrated services digital network.

isolating data interface (IDI)

A synchronous, full duplex data device used for cable connections between an INTUITY GPSC-AT/E card and the switch data communications interface unit (DCIU).

J

jumper

Pairs or sets of small prongs on circuit cards and mother boards that allow the user to instruct the computer to select one of its available operation options. When two pins are covered, an electri- cal circuit is completed.

K

Kbps

kilobits per second. One thousand bits per second.

GL-12Issue 2 December 1995

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AT&T 2400 Initialize, Input, Integrated services digital network Isdn, Interrupt request IRQ, Isolating data interface IDI