auto baud rate

auto baud rate

Post by E.Kalvelag » Fri, 15 Dec 1995 04:00:00



This must be an easy question.

I just installed a Digiboard 8em in a SCO box, and hooked up a few
modems. Dialing in works fine, but to cycle through the different
baud rates in my gettydefs file by sending BREAK is not what I want.
The man pages say something about an auto-baudrate option to
uugetty but a) the system admin guide does not mention this and
b) in my inittab I see calls to /etc/getty. I'd like to have some
auto baudrate option as users will dial in with an application
program that does not know how many BREAKS to send to achieve the
correct speed. Any suggestions are much appreciated.

Cheers, Erwin

 
 
 

auto baud rate

Post by Jean-Pierre Radle » Sat, 16 Dec 1995 04:00:00


Quote:E.Kalvelagen writes:
> I just installed a Digiboard 8em in a SCO box, and hooked up a few
> modems. Dialing in works fine, but to cycle through the different
> baud rates in my gettydefs file by sending BREAK is not what I want.
> The man pages say something about an auto-baudrate option to
> uugetty but a) the system admin guide does not mention this and
> b) in my inittab I see calls to /etc/getty. I'd like to have some
> auto baudrate option as users will dial in with an application
> program that does not know how many BREAKS to send to achieve the
> correct speed. Any suggestions are much appreciated.

What you really want with today's modems is not to cycle at all.
Pick a high-speed gettydef, such as 19200 or 38400, and let the
modem, using its internal buffers and hardware flow control,
arbitrate the difference between its speed over the telephone
line and its speed over the RS-232 connection.

--


 
 
 

1. Baud rate cycle (ala gettydefs)


at 2400 baud for dialin.  All seems to be working fine.  We also have
a 9600 baud modem that we wish to connect for dialin, but we want to
be able to handle users who dial in at less than 9600.

I was told that in smit "Change / Show Characteristics of a TTY"
under the "BAUD rate", I could just comma separate the desired rates, and
getty or someone would know how to cycle automatically.  I tried
"9600,2400,1200" in this field, and only worked at 9600.  When trying to
connect at 2400, the modem answered, but it acted as though there was no
getty on the line.  We tried several BREAKs, but without effect.

What is the proper way to configure the tty so it will cycle baud rates?

--
--

:: Your zero to my power of ten equals nothing at all...

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