9-track drive: What is it?

From: Daniel A. Seagraves <dseagrav_at_bsdserver.tek-star.net>
Date: Wed Aug 20 12:26:35 1997

On Wed, 20 Aug 1997, Tim Shoppa wrote:

> > However, I also found that the HPIB interface consisted of a removable
> > cage with three cards and its own power supply. Once this subassembly was
> > removed, the drive itself appeared to be a standard Pertec interface. I
> > have yet to actually try it, but a pair of 50-pin card-edge connections
> > sure look like Pertec to me.
>
> If it's two 50-pin connectors, it's a Pertec Formatted interface.
> Lots of older drives have within their bowels yet another set
> of cables: the Pertec Unformatted interface. This is three cables,
> one carrying control signals, another carrying read data, another
> carrying write data.

I can see 3 cables. One to motor control, the other 2 to 2 backplanes. I
guess backplane 1 is read, 2 is write, as 2 has less boards. All are
fully populated. What do Pertec Unformatted Interface cables look like?
These look like IDE cables.
Received on Wed Aug 20 1997 - 12:26:35 BST