TRS80 Model 3 i/o connectors

From: Glen Goodwin <acme_ent_at_bellsouth.net>
Date: Wed Oct 30 18:21:22 2002

> From: Fred Cisin (XenoSoft) <cisin_at_xenosoft.com>

> IIRC, #26-1401 It is basically straight through, and can be made by
> crimping a card-edge connector on one end of ribbon cable, and a
> "centronics" amphenol connector on the other. Sorry, but I don't
remember
> which direction to offset the cable (for the 34 v 36)

Thanks, Fred. The docs give the pinouts on the card-edge, so a cable
should be no problem.
 
> The other 34 pin is for external floppies. It should be possible to
> identify which 34 is which by proximity to the disk controller.

Piece of cake -- thanks again.
 
> "expansion bus" On the model 1 it was 40 pin. Did they change to 50 on
> the 3?

I don't know -- I wonder why this is not shown in the docs?
 
Later --

Glen
0/0
Received on Wed Oct 30 2002 - 18:21:22 GMT