Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!ukma!kherron
From: kherron@ms.uky.edu (Kenneth Herron)
Newsgroups: comp.unix.sysv386
Subject: Re: More than 32 serial ports on one board
Message-ID: <1991Jun15.020532.608@ms.uky.edu>
Date: 15 Jun 91 02:05:32 GMT
References: <1991Jun13.144732.18366@ecf.toronto.edu>
Distribution: na
Organization: University Of Kentucky, Dept. of Math Sciences
Lines: 20


In article <28561A25.44D1@telly.on.ca> evan@telly.on.ca (Evan Leibovitch) writes:
>I have an application where I need to install 48, possibly more, serial
>ports on an ESIX R4 machine. 
>...full modem control with hardware handshake, and I need to use RJ-45
>connectors in order to reducde wiring headaches.

I just got back from USENIX, and ARNET was showing a board capable of
running 128 serial ports from one PC slot.  You can have up to four such
boards in a machine.  The serial ports are DB-25's, not RJ connectors,
but I believe they have hardware handshake.  All my paperwork on it is
in the back of someone's car, but I can get you some info if you e-mail me.

(Which raises the question, what would you do with 512 serial ports on
a PC running unix?)
-- 
Kenneth Herron                                            kherron@ms.uky.edu
University of Kentucky                                       +1 606 257 2975
Department of Mathematics       "So this won't be a total loss, can you make
         it so guys get to throw their mothers-in-law in?"  "Sure, why not?"