US Robotics x2/56K Instrucciones de operaciones descargar pdf (Pagina 99)

GLOSSARY

ITU-T

An international organization that defines

standards for telegraphic and telephone

equipment. For example, the Bell 212A

standard for 1200-bps communication in

North America is observed internationally as

ITU-T V.22. For 2400-bps communication,

most U.S. manufacturers observe V.22 bis.

LAPM

Link Access Procedure for Modems. An

error-control protocol defined in ITU-T

Recommendation V.42. Like the MNP

protocols, LAPM uses cyclic redundancy

checking (CRC) and retransmission of

corrupted data (ARQ) to ensure data

reliability.

local echo

A modem feature that enables the modem to

display keyboard commands and transmitted

data on the screen. See command En.

MNP

Microcom Networking Protocol, an error-

control protocol developed by Microcom,

Inc., and now in the public domain. There are

several different MNP protocols, but the most

commonly used one ensures error-free

transmission through error detection (CRC)

and retransmission of flawed frames.

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US Robotics x2/56K Instrucciones de operaciones Pagina 99