Re: Extra Comm Port connection

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#645

From: Wally Shangle
Date: Sat, 01 Mar 1997 00:00

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Tony Ramsden wrote:
> 
> I have an  internal modem configured to Comm2 & a serial mouse on
> Comm1 but I wish to connect another serial device ( Psion link
> interface ) to the system, at present I'm having to disconnect the
> modem when I want to use the psion interface but what a bind this is!
> 
> I'm running Windows95 on an Intel Endevour Motherboard ( with on board
> serial ports x2 ).
> 
> Any suggestion will be gratefully accepted.
> 
> TIA
> 
> Tony
> 
> Tony Ramsden at home in Leeds UK

There are only 2 interrupts available for the 4 COM ports.  My solution
is to connect an external modem and any other serial devices to an AB
switch box.  An internal modem permanently takes the COM2 interrupt and
the mouse software will cause problems if you try to use COM3. Just
remember, COM1 and COM3 share interrupts as do COM2 and COM4.  Good luck

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From: Wally Shangle <wshangle@novagate.com>
Subject: Re: Extra Comm Port connection
Date: 1997/03/01
Message-ID: <33183C28.3C51@novagate.com>
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To: Tony Ramsden <tony@tram.demon.co.uk>
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