Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!cornell!uw-beaver!uw-june!uw-entropy!dataio!pilchuck!ssc!mcgp1!fst
From: fst@mcgp1.UUCP (Skip Tavakkolian)
Newsgroups: comp.emacs
Subject: Re: DecServer 200s and GNU emacs
Summary: The complete picture
Keywords: DecServer, Flow control, GNU emacs
Message-ID: <1620@mcgp1.UUCP>
Date: 14 Oct 88 19:47:36 GMT
References: <1599@mcgp1.UUCP> <1282@nmtsun.nmt.edu>
Organization: Computer Tools Int'l Inc.
Lines: 51

In article <1282@nmtsun.nmt.edu>, dieter@nmt.edu (The Demented Teddy Bear) writes:
> In article <1599@mcgp1.UUCP>, fst@mcgp1 (Skip Tavakkolian) writes:
> >I seem to have problems disabling xon-xoff flow control on DecServer 200
> >for use with emacs.  Even though the port is configured for no flow control,
> >I still get random ^S/^Q sequence which seem to be originating from the 
> >DecServers.  Does anyone have this problem? can it be fixed?  DecServers
> >are hooked to a VAX runing Ultrix 2.2.
> 
> Once the flow control gets turned off, it generally stays off.  I'm
> more suspicious of whatever terminal you are using.  Going by the hard-
> ware you've described, it seems likely that you have a VT-xxx.  These
> beasts *like* XON-XOFF flow-control.  Try going into SETUP mode and
> setting flow-control to NONE.
[deleted]
> 
> Dieter
> -- 
> Welcome to the island.  You are number six.
> ...cmcl2!lanl!unm-la!unmvax!nmtsun!dieter
> dieter%nmt@relay.cs.net
> dieter@nmt.edu

I should have done this in my original (above) posting. Here is the complete
picture:

        ------        -------      --------        ---------
       | AT&T |      | AT&T  |    | DEC    |      | DEC     |
       | 630  |<---->|DATAKIT|<-->| DS200  |<---->| VAX8250 |
       |      |  ^   |       | ^  |        |  ^   |         |
        ------   |    -------  |   --------   |    ---------
        	 |             |              |
                 +------+------+          Ethernet
                        |
                DKXON=OFF, DVXON=OFF
                (Datakit setting, no XON/XOFF)

Decserver 200 setting are set for no flow control. I am sure Datakit is
not the cause since I have UUCP and Blit protocol running on it. That
leaves my terminal and DS200/VAX. I am sure the problem is not at the
terminal, since I have set it not to generate XON/XOFF.  (I do lose
data on the 630 when there is a long output; I have tested this against
a 3B2-600.) So this leaves the piece of garbage DS200 and how it talks
to the VAX.

Many thanks.

-- 
Fariborz ``Skip'' Tavakkolian
UUCP	...!uw-beaver!tikal!mcgp1!fst

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