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From: cmi@dartvax.UUCP (Theo Pozzy/R. Green)
Newsgroups: comp.unix.xenix
Subject: Re: Adding ports to SCO XENIX system
Message-ID: <7433@dartvax.UUCP>
Date: Tue, 20-Oct-87 12:43:07 EDT
Article-I.D.: dartvax.7433
Posted: Tue Oct 20 12:43:07 1987
Date-Received: Fri, 23-Oct-87 04:48:14 EDT
References: <94@sda.atexrd.UUCP> <787@ssc.UUCP>
Reply-To: cmi@dartvax.UUCP (Theo Pozzy/R. Green)
Organization: Corporate Microsystems, Inc.
Lines: 32
Keywords: ports SCO XENIX

In article <787@ssc.UUCP> fyl@ssc.UUCP (Phil Hughes) writes:
>In article <94@sda.atexrd.UUCP>, sda@atexrd.UUCP (Stephen Ayers) writes:
>> I would like to add an additional 4 ports to my
>> SCO XENIX system(a compaq 386).  I'm looking for
>> something with DMA access and as little overhead
>> as possible at 9600 baud.
>
>Arnet SmartPort is my quick suggestion.

Although I'm not sure about 4-port boards, we've had quite a bit
of experience with two of the 8-port boards, Digiboard and Hostess.

The Smart Hostess 8-port board is by far the best I've seen.  It
has DMA, on board CPU and RAM, and has the best device driver.
We've pounded on it by using our software, MLINK, to do 9600 baud
file transfers with one port looped back into another, with two
loops running at once!  And the degradation seen by the rest of
the system is a fraction of what the Digiboard causes.

The Digiboard also has a tendency to hang in the device driver,
leaving you SOL until you reboot.  Not cool.


Theo Pozzy, Corporate Microsystems, Inc.
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-- 
Theo Pozzy, Corporate Microsystems, Inc.
...!decvax!dartvax!cmi (UUCP)      cmi@dartmouth (CSNET)
cmi@dartmouth.edu      (ARPA)      Box A-58, Hanover, NH, 03755 (USPS)
CompuServe             (76267,413) (603) 448-5193 (BellNet)