In the case of the SmartWriter printer, it uses the ADAMNet interface. It's a
proprietary interface that all the peripherals use... keyboard, tape drives, disk drives,
etc. all use it. It's basically a two wire I2C (tx/rx on the same pair) running at
62.5kbps with their own proprietary protocol running over it. Supports up to 16 devices.
On Dec 30, 2009, at 12:28 PM, Tony Duell wrote:
[ADAM printer]
The interface is probably a regular old serial or
parallel interface,
just with a proprietary cable. I doubt coleco made their own
printers. I bet there's a fix for the tape drive problem as well.
Hmm... A nmmber of manufacturers (Commodore being the obvious one) used
standard printer mechansisms with their own electronics, and thust their
own interface. I think it's fairly well-known that the Commodore GPIB
printers had Epson mechansims, but the electronics is nothing like the
Epson electronics. And of course the Commodore 1520 is an Alps mechanism.
Maybe Coleco did soemthing similar. I'd heard the interface was something
a little unconventional...
-tony