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Date:      Sat, 29 Jun 1996 13:40:25 +0930 (CST)
From:      Michael Smith <msmith@atrad.adelaide.edu.au>
To:        mrm@marmot.Mole.ORG (M.R.Murphy)
Cc:        msmith@atrad.adelaide.edu.au, stesin@elvisti.kiev.ua, hardware@FreeBSD.org, Kevin_Swanson@BLaCKSMITH.com
Subject:   Re: muliport boards - building a PPP dialup server
Message-ID:  <199606290410.NAA20298@genesis.atrad.adelaide.edu.au>
In-Reply-To: <199606281619.JAA24043@meerkat.mole.org> from "M.R.Murphy" at Jun 28, 96 09:19:10 am

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M.R.Murphy stands accused of saying:
> 
> A thing to watch out for is that the multi-16550 boards (I'm familiar
> with Digiboard 8-port and HUB-6 with 16550) generate a LOT of heat. Good
> cooling is required. Especially with more than one board in a system.

This is highly dependant on the type of UART on the board.  Older NMOS
parts (16550AFN etc.) will generate quite a lot of heat, especially
when they're busy.  Newer parts (16C550, PC16550D) don't get anywhere
near so hot.

> Mike Murphy  mrm@Mole.ORG  +1 619 598 5874

-- 
]] Mike Smith, Software Engineer        msmith@atrad.adelaide.edu.au    [[
]] Genesis Software                     genesis@atrad.adelaide.edu.au   [[
]] High-speed data acquisition and      (GSM mobile) 0411-222-496       [[
]] realtime instrument control          (ph/fax)  +61-8-267-3039        [[
]] Collector of old Unix hardware.      "Where are your PEZ?" The Tick  [[



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