On Wednesday 24 Sep 2003 4:17 pm, you wrote:
> How do they get away with this?
>
> They have an RS232 line going into a digital I/O port using just a couple
> of resistors.
>
> Also, the 7404 as a line driver. How much cable and speed is that good for?
>

That's bloody criminal.  Note they have two 7404s in parallel.

Ian

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