Path: utzoo!attcan!uunet!lll-winken!ames!oliveb!apple!rutgers!att!alberta!calgary!xenlink!blender!root
From: root@blender.UUCP (Super user)
Newsgroups: comp.sys.ibm.pc.rt
Subject: Re: Why I feel AIX is not usefull (Does this belong here?)
Summary: 2400 baud modem
Message-ID: <8@blender.UUCP>
Date: 1 Mar 89 02:47:03 GMT
References: <2036@nmtsun.nmt.edu>
Organization: blender
Lines: 63

In article <2036@nmtsun.nmt.edu>, peter@hydrovax.nmt.edu writes:
> The asynch driver is still broken. Terminals have to be run at 19200 or
> AIX throws away output characters. I have tried numerous flow control
> and bit/parity combinations, to no avail. I would really like to hang
> a 2400 baud modem on the system so I can call in from school, but the
> system (getty) won't send nl at 2400. It also locks up after I reply to the
> login prompt. IBM sent out a tech. He couldn't figure it out either,
> but verified that the systems at IBM (Albuquerque) have the same problem.
> Of course this may be a hardware bug and BSD might behave the same.
> 

While I have nothing to say about the other bugs you've mentioned since
I haven't experienced them or even worked in the environment to have the
opportunity to experience them, I do have something to say about the
above.

   We have about 12-15 clients with various models of the RT (ie:25, 125,
115, 135) as well as a model 25 (gag) at work.  At least one of each machine
is running 2.2.1 and these machines are running mostly IBM3151 terminals
but each one has at least one modem on it.  About a half and half split 
between 1200 baud and 2400 baud.  They work fine and dandy.  Since we
do our support remotely over these modems they're used quite often and
we've never experienced any troubles with them aside from Operator errors.
"What? It's supposed to be plugged into 'line'? Not 'phone'?".  In fact
we do a fair bit of uploading and downloading either via straight
ascii or an xmodem type thing.  We've never experienced lost characters.
The settings I use (or the relevant ones anyways) in devices are the 
following:

rts 2400 (1200)
pt none
bpc 8
pro dtr
dvam 0   (I know it says "0 for local, 1 for modem" but who cares?)
tt ibm3151 (or wy50, vt100 (procomm plus))

  Those are the only things I change when I hook up the modem.  Once 
I've got the modem hooked up I generally run up ATE and change the 
configuration (hayes compat) to work with the RT.  Otherwise it won't
work too well...

ie: "ATE0M0S0=1&C1Q1&W"

 I think the operative one there is "E0" since if the modem is echoing
back to the RT, and the RT is echoing back to the modem, and the modem
is echoing back to the machine..... well, you know what I mean...


 On another note, Some of the machines have AT's or clones hooked up
to them running Procomm+ at 9600 baud and they work fine too.

 Forgive me if some or all of what I've told you here is intuitively 
obvious but it's what I've been doing for every one of our clients
machines and they work fine.  (I won't say flawlessly.)

 I would however like to see BSD run on an RT.  Especially a 135 and
XWindows on a Megapel. That would seem impressive since it's something
I've never seen.  For those of you who work with this everyday I say
PPPPPHHHHHTTTTT!!!
-- 
herb@blender.UUCP

Did I tell you I'm forgetful?