Extended CommandsChapter —7
302 TE 2000
5250 Terminal Emulation Programmer’s Guide
Flow Control
The Transmit command supports these types of flow control:
S RTS/CTS (6400, 5055, 59XX, 17XX, 11XX)
S DTR/DSR (59XX only)
S XON/XOFF
Use CTS and DSR flow control lines to show XON/XOFF conditions
from the output device. Also use them to prevent output when the termi-
nal has no output device. The output device DTR should connect to ei-
ther the DSR or CTS lines. On the 59XX Terminal, DTR is normally low
and is raised to indicate that the terminal is prepared for an RS-232 data
exchange.
XON/XOFF is the same XON/XOFF flow control most devices support.
The timeout value tells the terminal how long to wait for the flow control
handshake before returning a one-byte error value.
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