Re: Ability to drive multiple IR transmitters independantly from PC

["Bill Kearney" <wkearney99@xxxxxxxxxxx>]

> >> Macs never had true serial ports
> >
> >Well, here you're plainly wrong.  Granted, they weren't PC comm ports in
the
> >traditional sense but all (nearly?) pre-USB macintoshes came with two
serial
> >ports.  422 capable as well.
>
> They had RS422 ports which use balanced signals. That's closer to RS485
than
> to RS232 which uses unbalanced signals. Most people would regard RS232 as
> "serial".

The ports would do RS232 just fine, this in addition to being able to do
their Localtalk/Appletalk scheme based.  What this has to do with USB-serial
adapters is anyone's guess...