[Techtalk] connecting a dumb terminal

Megan Golding meggolding at yahoo.com
Wed Aug 7 10:35:02 EST 2002

--- Katie Bechtold <katie at katie-and-rob.org> wrote:
> Hi!  I just picked up a portable dumb terminal, brand Informer and
> model 207, that I'd like to connect to my RedHat 7.2 box.  I
> connected it to COM2 (ttyS1) with a crossover cable.  I added the
> following line to my /etc/inittab:
> t1:2345:respawn:/sbin/agetty -L 1200 ttyS1 vt100
> and did a "telinit q" to tell init to re-examine the /etc/inittab
> file.  But the wrong characters (or no characters) appear on the
> terminal when I type on the terminal's keyboard or do a "echo test
> >
> /dev/ttyS1" on my PC.  No login prompt appears at any time on the
> terminal.  To be specific, sometimes a "}" character appears when I
> press enter on the terminal's keyboard; sometimes nothing appears.
> When I do "echo test > /dev/ttyS1", sometimes "x~x`" appears;
> sometimes nothing appears.  Does anyone have troubleshooting
> advice?

(Going out on a limb here...)

My experience with serial lines has been that if anything at all
appears in response to your keyboard, then your baud rate and/or flow
control need to be altered.

For agetty, try the -h option to see if enabling hardware flow
control helps you out.


Megan Golding    |    http://www.kalamitykat.com

Do You Yahoo!?
Yahoo! Health - Feel better, live better

More information about the Techtalk mailing list