Flow Control; Overview - 3Com 56K Command Reference Manual

11

Overview

F C
LOW ONTROL
This chapter contains information about
Hardware and software flow control
Received-data flow control
Transmit-data flow control
The Business Modem has two buffers, one for data transmitted from your
computer, and one for data received from the phone line.
Flow control provides a system for stopping and starting transmission
depending on how full the buffers are. Flow Control's purpose is to
prevent overfilling the buffers, which may cause data to be lost.
We recommend that you use hardware flow control. If you do,
depending on your communications software, you will also need to
enable hardware flow control in your communications software.