Re: Ability to drive multiple IR transmitters independantly from PC

[nobody@xxxxxxxxxxxx (Dave Houston)]

"Bill Kearney" <wkearney99@xxxxxxxxxxx> wrote:

>You've named at least three chipsets, I'm sure there are more.  I've worked
>with quite a few of these adapters over the years (from at least a dozen
>different vendors) and have had very little success with getting most
>software working with them on a consistent basis.  There's plenty of points
>of blame possible, from the software itself doing a bad job of just using
>serial ports, hardware conflicts (irqs, etc) and that's all before getting
>to the USB driver's layer.  So in the real world there's lots of room for
>problems.  Thus having found success using multiport adapters I'm given to
>encouraging others to trying it.

And I've never experienced any such difficulties. Go figure.

>> I have used multi-port hubs.
>
>I'm not talking about hubs.  I'm sure you're delighted with your vast array
>of knowledge, thanks for sharing.
>
>> 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".

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