US Robotics COURIER Instrukcja Użytkownika Pobierz pdf (Strona 102)

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U.S. Robotics I-modem Command Reference

Flow Control • Page 10-1

Chapter 10

Flow Control

The I-modem has two buffers, one for data transmitted from your computer, and one for

data received from the phone line. Buffers are data-storage areas of variable size.

Flow control provides a system for stopping and starting transmission depending on how

full the buffers are. Its goal is to prevent overÞlling the buffers and losing data.

There are two kinds of ßow control: hardware and software. I-modems support both, but

your computer and communications software must also support the kind of ßow control

you choose.

Note We recommend that you use hardware ßow control. If you do, depending

on your communications software, you may also need to disable your com-

munications softwareÕs software ßow control.

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