Apple HAL XEBEC controller

From: Sellam Ismail <dastar_at_ncal.verio.com>
Date: Sun Apr 18 13:58:27 1999

On Sun, 18 Apr 1999, Pete Turnbull wrote:

> Well, sure, the drive would be MFM (or whatever the particular Xebec
> controller was intended for). I don't have the Xebec controller that came
> with this particular Apple interface; I was just hoping I could use this
> Apple interface with one of the spare Xebecs I have in the junk box.

Can you scan this card and the Xebec interfaces you have and post a
picture of them somewhere? I then might be able to tell you if you've got
a winning combination.

> > Are you wanting to use it to hook a hard drive up to your Apple ][?
>
> Yes. I should have been clearer; I have the Apple-to-Xebec interface, and
> a couple of Xebec SASI controllers from elsewhere, and a few MFM drives.
> What I need is the pinout of the 26-pin connector on the Apple-to-Xebec
> interface, so I can figure out if my Xebex will connect to it. I wonder if
> an Adaptec ACB4000 would work? I've got a couple of those, too.

Ok, I just took stock of the hardware in my next room. I have a First
Class Peripherals Sider ][ hard drive (actually two) and for the first
time ever noticed that they have a Xebec label on the bottom, which I
guess means these are actually Xebec hard drives and First Class was the
name they sold hard drives under? Whatever.

Ok, so then I opened one up and noticed a Xebec PCB that is the same size
as a 5.25" drive, that contains among many other things a Z80, an 8502 and
a ROM with a Xebec label. The connector is 50 pins.

I then opened the Apple //e hood and the Xebec controller card also has 50
pins.

So I'm not familiar with the card you have at only 26 pins.

> Was there a standard pinout on Apple SCSI/SASI boards? Perhaps it's the
> same as the Mac 25-pin SCSI?

If you consider Xebec to be the standard then yes. I've never seen a hard
drive controller made by any company other than Xebec.

Sellam Alternate e-mail: dastar_at_siconic.com
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Received on Sun Apr 18 1999 - 13:58:27 BST

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