From: Borja Marcos borjam@we.lc.ehu.es
Subject: Multi-Tech ISI card
Date: Tue, 19 Sep 1995 17:20:51 -0400 [thread overview]
Message-ID: <19950919212051.TPyF0G4_9Z5_IajsJsz3H0-vQ2fMZuW4exyFZoADz2Y@z> (raw)
>
> we have two of these cards and they've never been out of the box,
> i believe they are just 16550's strapped to come up in a suitable mode
> (but i could be wrong).
> we run the plain old 16550's on our pc's at 115200 with high-speed
> compressing modems (motorola) without trouble, you don't need the isi
> card unless you need com3.
> we have, however, had trouble with the multitech mt2834 modems when trying
> to use them over a 4-wire leased line. we'd be interested in anyone
> else's experience.
Multi-Tech say that the cards are 16550-compatible by default
but they can be put in a mode with a bigger buffer to decrease the
interrupt load. I will look at the specifications they are going to give me.
BTW, my COM3 card is an old 8250-based card with the 8250 desoldered
and replaced by a 16550, and a track cut and resoldered to use IRQ5.
It works under Unix (and will work under Plan 9 once I get the new
motherboard).
The reason for the ISI card is that I use to do heavy work while
I use the modem and for now I cannot set up separate file server, CPU server/s
and terminal, so I will use a single machine.
regarding the modems, I haven't experience with that model
(just biught the cheap 2834ZDX which is async-only and PSTN-only) but
perhaps I can help you. Which is the problem?
Borja.
--
*******************************************************************
Borja Marcos | Preferred: borjam@we.lc.ehu.es
Alangoeta, 11, 1. izq. | Others: borjamar@mx.sarenet.es
48990 - Algorta (Vizcaya) | 100015.3502@compuserve.com
SPAIN | CIS: 100015,3502
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(c)1995 by the author.
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next reply other threads:[~1995-09-19 21:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
1995-09-19 21:20 Borja [this message]
-- strict thread matches above, loose matches on Subject: below --
1995-09-20 10:19 Dave
1995-09-19 13:36 jmk
1995-09-19 7:51 Borja
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