Digium G201 Manual de Instalação descarregar pdf (Página 68)

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Appendix C: Glossary and Acronyms

LED Light-emitting Diode

Linux

A robust, feature-packed open source operating system based on Unix

that remains freely available on the internet. It boasts dependability and

offers a wide range of compatibility with hardware and software. Asterisk

is supported exclusively on Linux.

loopback

A state in which the transmit signal is reversed back as the receive signal,

typically by a far end network element.

MGCP Media Gateway Control Protocol

multiplexing

Transmitting multiple signals over a single line or channel. FDM

(frequency division multiplexing) and TDM (time division multiplexing)

are the two most common methods. FDM separates signals by dividing

the data onto different carrier frequencies, and TDM separates signals by

interleaving bits one after the other.

mux multiplexer

A device which transmits multiple signals over a single communications

line or channel. See multiplexing.

node

A terminal in a computer network.

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Digium G201 Manual de Instalação Página 68