Dave,

you're right. But at least my //c+ isn't able to do more than 9.600 at its
ser port. My IIGS has a Transwarp at 8 Mhz, so I might be induced by that
to think it would run at 4 originally. But anyway, with a totally crippled
down Prodos 8, booting directly in I could use a Supra 33.6 also without
the accelerator. With accelerator a 56k modem worked fine, but not an
external isdn adapter (yes I used Marinetti!). Some are saying the
SuperSerial card with ASB chip would better. Don't know . . .

Best regards, Ulrich

On Wed, 23 Sep 1998, Dave Huang wrote:

> On Wed, 23 Sep 1998, Ulrich Hausmann wrote:
> > I second this: Even the Apple IIGS can keep fine with 57.6 on its ser
> > port (having technically the same as the SE) and it's only at 4 Mhz and
> > 16 bit data bus! Well, you have to not run other processes or desk
> > accessories . . .
> 
> Um, it's more like 2.5MHz (the //c+ is the 4MHz machine). And I could
> never get 57.6Kbaud without silo overflows on an unaccelerated IIgs, even
> with something like ProTerm. My machine runs at 10MHz, and can handle
> 57.6K if (as you say) no other processes are running. The IIgs could
> handle localtalk though, I think by having the chip interrupt at the start
> of a packet, then polling for the rest (isn't that how it's also done
> under MacOS? At least for the non-DMA capable machines?)
> 
>