[Coco] Telepak RS232 Pak

[Mark Marlette]

Gene,

That has been my experience as well.

If others have had it working with out the MPI then they are luckier than I.

Mark

At 1/17/2009 03:53 AM, you wrote:
>On Saturday 17 January 2009, Roger Taylor wrote:
> >At 10:31 PM 1/16/2009, you wrote:
> >>Hi Mark,
> >>
> >>Thanks for the explanation. So if I understand correctly, the TelPak uses a
> >>newer hardware technology and can be used without the services of an MPI.
> >>Other than that they both do about the same thing... correct?
> >>
> >> > I should expand.
> >> >
> >> > There is a MAX chip in the TelePak that has acharge pump in it that
> >> > creates the RSR232 rail voltages.
> >> >
> >> > What this means is that you DO NOT need a multi-pak for this device to
> >> > work in a CoCo3 as the Tandy pack does.
> >
> >I've never known the Deluxe RS-232 Pak to not work in a CoCo 3
> >without an MPI.  There's a ROM in the pak which means you probably
> >can't use it at the same time a floppy controller is plugged into Any
> >CoCo unless you're using an MPI.
>
>It works if that teeny little Aztec 5 volt to +-12 volt switcher in it works,
>but the draw on the 5 volt line is more than the cc3 supply can do well.  I
>have seen several cc3s with blown fuses because that supply hiccuped.  The
>one in mine let out all the smoke and died a decade ago, so it works in an
>MPI only now.
>
>--
>Cheers, Gene
>"There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
>-Ed Howdershelt (Author)
>Audacity, and again, audacity, and always audacity.
>                 -- G.J. Danton
>
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