EIA 232 vs. 422, Color Computers (was Re: Serial floppy drive s)

From: Jeffrey Sharp <lists_at_subatomix.com>
Date: Mon Sep 16 08:08:07 2002

On Thursday, September 12, 2002, Dwight K. Elvey wrote:

> From: "Jeffrey Sharp" <lists_at_subatomix.com>
>
> > 100 feet at 115200 bps through three unshielded wires, wrapped around a
> > three-foot-tall Jacob's ladder apparatus enclosed in plexiglass. No bit
> > errors. We gave up and decided to build a device to simulate bit errors.
>
> What makes you think that wrapped on the outside of a Jacob's ladder has
> either the right coupling or the right frequency spectrum to effect a
> RS-232 signal?

Well said. It probably had more to do with a burning desire to do
*something* with the giant Jacob's ladder. But we were still suprised when
nothing happened, none of us being hardware guys.

Someone else mentioned a device that you could insert into a serial link
that generated bit errors with a configurable frequency. That seems like the
way to go here, and it can be done with nearly any machine with two
compatible serial ports.

-- 
Jeffrey Sharp
Reply to jss at subatomix dot com.
Received on Mon Sep 16 2002 - 08:08:07 BST

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