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BOCA PRO16 Reference Guide
COMMAND MEANING
&K Flow Control
The &K command enables you to select the type of flow control used
between your modem and the local computer when asynchronous mode
is selected. You may want to do this to prevent possible data loss
resulting from buffer overflow.
Using flow control guarantees that data buffers in your modem and
computer won’t overflow. Your modem and your terminal or computer
must be using the same type of flow control.
FFlow control is only available when your modem is configured for
constant speed mode or reliable or auto-reliable modes and is operat-
ing in on-line state. Flow control will be ignored when your modem is
configured for variable speed mode (AT\N1) or is in local command
state.
WARNING
XON/XOFF flow control must not be selected when you are
using XModem, YModem and SEAlink file transfers. XON/
XOFF flow interferes with the operation of these file transfer
protocols and will cause unreliable operation.
Options
AT&K0 Flow control disabled
AT&K3 RTS/CTS (hardware) flow control
The modem and computer use the CTS (Clear to Send) and RTS
(Request to Send) signals on the RS-232 serial connection to
control data flow.
AT&K4 XON/XOFF (software) flow control
The modem and computer use the XON and XOFF characters
(DC1 and DC3) to control the flow of data.
AT&K5 Transparent XON/XOFF flow control
The modem and computer encode and decode XON and XOFF
characters which are part of the data stream. Transparent
XON/XOFF provides reliable operation when using file transfer
protocols.
Command Descriptions
Command
Descriptions
pro16ref.pm6 6/14/96, 2:38 PM115
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