Date: Sat, 24 Jan 1998 15:43:18 -0500 (EST) From: Chuck <crtb@capecod.net> To: Alejandro Galindo <agalindo@servidor.exsocom.com.mx> Cc: freebsd-hackers@FreeBSD.ORG, freebsd-isp@FreeBSD.ORG Subject: Re: Modem Speed in ttys and gettytab files Message-ID: <Pine.FBS.3.93.1.980124153805.4461A-100000@capecod.net> In-Reply-To: <1.5.4.32.19980124001155.00949cd8@exsocom.com.mx>
next in thread | previous in thread | raw e-mail | index | archive | help
How about the control leads? It might help if you have a breakout box,
to monitor the RS-232 signals. Kermit should raise DTR (pin 20 at the
modem) and RS (pin 4 at the modem). The modem should respond with its
own CS (pin 5) and DSR (pin 6). Pin 8 asserts CD and should only come
on when a connection has been made over the phone line. If Kermit can
assert pins 4 and 20 (I forget what pin numbers at the 9-pin connector),
the modem should respond to AT commands at all speeds.
Chuck Bacon -- crtb@capecod.net
ABHOR SECRECY -- DEFEND PRIVACY
On Fri, 23 Jan 1998, Alejandro Galindo wrote:
> i set speed 115200 with kermit, the problem now is the modem not
> respond to "at" commands, next i set the speed to 19200 but the modem dont
> respond to "at" commands, i use the tip program for configure the modems
> (like kermit) but i cant configure the modem to factory at&f, how can i do?.
>
> With other modem, i use the "mgetty -s 115200" in ttys file and it
> works (from reply Jim Bryant <jbryant@unix.tfs.net>) and the comunication is
> most faster now we have an average round-trip (with ping) of 140 ms in the
> past the average was 230 ms (betwen the server and
> the interface pppc00.mydomain --> /dev/ttyc00).
>
> the question now is why if the modem works well with mgetty and 115200 of
> speed when i set the speed with kermit to 115200 the modem is'nt work?
>
> thank you for your replys
> Saludos
> Alejandro
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.FBS.3.93.1.980124153805.4461A-100000>