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From: dc@go3.graphon.UUCP (Darren Croke)
Newsgroups: comp.windows.x
Subject: Re: X on RS232
Message-ID: <283@go3.graphon.UUCP>
Date: 6 Sep 89 15:42:57 GMT
References: <34217@mlswindow.uucp> <1773@bacchus.dec.com>
Reply-To: dc@go3.graphon.UUCP (Darren Croke)
Organization: GraphOn Corp., San Jose, CA.
Lines: 22

In article <1773@bacchus.dec.com> klee@gilroy.pa.dec.com (Ken Lee) writes:
>In article <34217@mlswindow.uucp>, wu@mlswindow.uucp (Rocky Wu) writes:
>> Does anyone know whether it is feasible to implement X under RS232 direct connection?
>> As I understand, all X terminals have some kind of ethernet software built-in.
>> Would it be possible to have just the serial connection? 
>
>The GraphOn X terminal supports a serial interface.  You open a socket
>to a "mini-server" running on a UNIX host.  This mini-server converts
>the X protocol to a smaller protocol based on SLIP and sends it to the
>terminal via a serial wire or high speed modem.  Performance may be
>adequate, depending on your expectations.  Images, pixmaps, and mouse
>following are not especially fast.

Just for the record,

The GraphOn X server is a complete implementation of the X11R3 server 
with our own DDX added. 
Our DDX communicates with the terminal via a tty, (or pty), device using
a terse protocol, not based on SLIP.

Darren Croke
dc@graphon.uucp