SECTION 9 " Extended Commands
VT220/ANSI Terminal Emulation Programmer’s Reference Guide 9-13
Table 9-2 (Continued)
Transmit Only Characters
Line 1, Columns 2--12
Column DescriptionCharacter *
9
0
1
DTR flow control.
Disable.
Enable.
To avoid improper operation of the RT3210 Radio Termi-
nal and the remote display, DTR flow control should be
set to Disable when a remote display is in use.
10
0
1
XON/XOFF flow control.
Disable.
Enable.
11--12
XX
Flow control timeout value.
Number of seconds.
* Some wireless stations do not support some characters. Refer to the wireless
station’s user guide for supported characters and options.
Flow Control
Transmit Only supports three types of flow control: CTS,
DSR (RT5900 Series only), and DTR. Use CTS and DSR
flow control lines to show XON/XOFF conditions from the
output device. Also use them to prevent output when the
wireless station has no output device. The DTR of the out-
put device should connect to either the DSR or CTS lines.
XON/XOFF is the same XON/XOFF flow control supported
by most devices. The timeout value tells the wireless sta-
tion how long to wait for the flow control handshake before
returning a one byte error value.
For the wireless station, DTR is normally low and is raised
to indicate the wireless station is prepared for an RS-232
data exchange.
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