Re: x86 architecture concepts

From: Paul Keinanen (keinanen_at_sci.fi)
Date: 02/27/05 

Date: Sun, 27 Feb 2005 02:08:02 +0200

On 26 Feb 2005 20:54:26 +0100, rob@rupert.sysgo.com (Robert Kaiser)
wrote:

>
>> RS-232.
>
>And whats wrong with this?

While the RS-232 "standard" may be adequate for the initial purpose of
connecting a serial signal from a computer (DTE) to a modem (DCE) in
an adjacent rack, the worst problems with RS-232 for any general
purpose interface is the far too high impedance levels compared to any
realistic cable characteristic impedance and the problem with ground
potential differences, since no galvanic isolation is required.

Paul
 

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