Robotics Sportster Flash x2 Guía de usuario descargar pdf (Pagina 38)

Sportster MessagePlus34

full duplex

Signal will flow in both directions at the same time over one line. In

microcomputer communications, may refer to the suppression of the

online local echo.

half duplex

Signals will flow in both directions, but only one way at a time. In

microcomputer communications, may refer to activation of the

online local echo, which causes the modem to send a copy of the

transmitted data to the screen of the sending computer.

Hertz, a frequency measurement unit used internationally to indicate

cycles per second.

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. The initials ITU-T represent

the French name. In English it is known as the International

Telegraph and Telephone Consultative Committee.

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 erred frames.

modem

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 69 70

Sin comentarios

Robotics Sportster Flash x2 Guía de usuario Pagina 38