Re: 4400/200: next issue!

[Mouse <mouse%Rodents-Montreal.ORG@localhost>]

>> [...] I can't seem to find the [serial port] pins.
> Rs-422 I think, not rs 232

My experience with 422 is limited, but usually I've gotten _something_
when hooking a 422 sender up to a 232 receiver.  Don't 422 senders
usually drive the data pins relative to ground?  I have trouble
imagining why anyone would bother building differential serial senders
that are DC-isolated from the rest of the machine.

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