ADTRAN 1200214L1 Spezifikationen PDF herunterladen (Seite 165)

Appendix D. Glossary

61200214L1-20 IQ Probe User Manual D-7

gateway

A device which enables information to be exchanged between two

dissimilar systems or networks.

HDLC

High level data link control. A generic link-level communications

protocol developed by the International Organization for Standard-

ization (ISO). HDLC manages synchronous code-transparent, serial

information transfer over a link connection. See also SDLC.

host computer

The primary or controlling computer in a multiple computer opera-

tion.

in-band

Signaling (dialing, diagnostics, management, configuration, etc.) over

the same channel used for data.

ingress

Frame relay frames leaving from an access device in a direction

toward the frame relay network.

interface device

Provides the interface between the end device(s) and a frame relay

network by encapsulating the user's native protocol in frame relay

frames and sending the frames across the frame relay backbone. See

also encapsulation and frame-relay-capable interface device.

Internet protocol. A protocol which provides for transmitting blocks

of data between hosts identified by fixed-length addresses.

ISDN

Integrated services digital network. A network architecture that

enables end-to-end digital connections. The network supports

diverse services through integrated access arrangements and defines

a limited set of standard, multipurpose interfaces for equipment ven-

dors, network providers, and customers. Interworking with a public

switched telephone network is retained.

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ADTRAN 1200214L1 Spezifikationen Seite 165