On Dec 21, 2006, at 4:49 AM, George Harvey wrote:
>> I have a uVax-III in a BA23 box and I am trying to add SCSI disk/tape
>> support. I am told that the CMD controler, model CQD-220 or CQD-223,
>> will work. I have found a place where I can buy one of these
>> controlers, but without documation. I am looking for any hardware
>> information about this CMD SCSI controler that I would need to get it
>> working. Jumper settings, addresses, QBUS slot restrictions, and
>> anything about scsi devices it supports.
>
> I put a CQD-223 in my 4000/500A a couple of years ago with help from
> this list. The thread includes jumper settings and other info that  
> might
> be useful, look in the archives for 'VAX 4000 QBUS question' on  
> Dec. 16
> 2004.
>
> One thing to watch out for is that I think these cards came in  
> different
> flavours, disk only, tape only and disk+tape. Mine supports both disk
> and tape drives.

   I think (but am not 100% positive) that the only difference is in  
the firmware on the EPROM, which can be copied with relative ease.

          -Dave

-- 
Dave McGuire
Cape Coral, FL