Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!utgpu!water!watnot!watmath!clyde!cbatt!cwruecmp!hal!ncoast!miket
From: miket@ncoast.UUCP
Newsgroups: comp.unix.xenix
Subject: Re: Intellegent multi-port serial line card for Xenix...
Message-ID: <2300@ncoast.UUCP>
Date: Mon, 6-Apr-87 00:02:38 EST
Article-I.D.: ncoast.2300
Posted: Mon Apr  6 00:02:38 1987
Date-Received: Mon, 6-Apr-87 23:42:27 EST
Organization: Cleveland Public Access UN*X, Cleveland, OH
Lines: 39

Expires: 
References: <1459@cadovax.UUCP>
Sender: 
Reply-To: miket@ncoast.UUCP (Michael Taht)
Followup-To: 
Distribution: world
Organization: Cleveland Public Access UN*X, Cleveland, Oh
Keywords: 

>
>I want to get a 386 AT class box and run Xenix on it.  It needs to 
>be a multi-user system (5 to 8 users) and it needs to have excellent
>response time.
>
>I know that I need a multi-port card and I think that it will need to
>be intellegent (i.e. buffer characters and interrupt the CPU less often
>that once per character).
>
>Are there any boards out there that will work for me in this way?
>
>I've heard about the AST 4-port card but it is not intellegent at all.
>Wont that create a I/O bottle-neck in my system.
>
>What intellegent multi-port I/O cards are out  there for this type of
>configuration???
>
>Thanks.
>
>-- 
>Mitchell Lerner
ARNET has the best intellegent I/O board out there. For anything below
5 users, I use Digiboard's dumb 4 port. They're a b+tch to setup, cheap,
and reliable. They come standard with a bunch of male RS-232 connectors
which is nice for a bunch of modems. Digi has been good to me, and the
Xenix version of their new smart board I'll be betaing in a few weeks.
Whether or not it will be better than the ARNET board remains to be seen.
And yes, you don't wanna use a dumb board with a 386. The thang responds
to interrupts even slower than the 286 does. (8 bit polling in the code)
Michael Taht, TCASS, 609-391-0037