IBM RT PC card.

jim stephens jwsmail at
Mon Apr 3 04:05:10 CDT 2017

On 4/3/2017 1:56 AM, Mattis Lind via cctalk wrote:
> This card is sitting in a IBM RT PC.
Possibly an RTIC card, with the 68000 on it.  Might be a controller.  
The 3278 is the same as the PC/AT one.  The 3278 doesn't use anything 
like a 68000 co-processor.
> What kind of card is it? The WD1935 seems to be a SDLC chip. I cannot find
> any reference to the numbers P/N 6247874 (bottom layer etch) or the number
> on the sticker on the backside: 6247871G001
> It is connected to an IBM marked dongle which has 4 BNC connectors.
> Is it a 3278-3279 emulation board?
> /Mattis

More information about the cctech mailing list