usb-to-parallel port solutions

[Douglas Taylor]

On 11/5/2015 9:08 PM, Chris Elmquist wrote:
> On Friday (11/06/2015 at 01:51AM +0000), dave at 661.org wrote:
>> Can somone recommend a good USB-to-parallel port solution that will easily
>> work with Linux?
> FT245??
>
> https://www.sparkfun.com/products/7841
>
> Will look like a tty device to Linux(/dev/ttyUSBn) but baud rate, other
> settings are ignored and whatever you write to that port comes out the
> FT245 bit parallel and whatever you strobe into FT245 bit parallel comes
> out the tty driver on the top side.
>
> I have used these as a high speed channel to vintage machines such as
> Heath H89 and then we ran a disk emulation protocol on top of that.
>
> Chris

I'm interested in this, but on the parallel side is it 5V logic? How do 
you connect to the pads?  Does USB provide all the necessary power?

Doug