System Industries QBus board

From: Doc <doc_at_mdrconsult.com>
Date: Sat Apr 6 17:18:14 2002

On Sat, 6 Apr 2002, David Barnes wrote:

> This is an SI (System Industries) interface card to the SI 9900 controller,
> and its variants... The 9900 allowed you to attach SMD disk drives, and
> it did RM (later MSCP) emulation with VMS... It was also supported in
> PDP's. I used to have some of these.... interesting technology..

  Ahhh, the dawn begins to break. There's an empty 4-bay drive drawer
that doesn't have any visble connectors, and a very beefy
PSU/transformer set. There are also a couple of Berg connectors on the
main bulkhead that I haven't ID'ed. The one descriptive link I've found
for a Systems Industries 9900 refers to "its own rackmounted drawer."
  So, I have 2 identical QBus boards, and maybe the drive drawer. What
components (including drive types) are missing here?
  Thanks for the information, too. That's miles farther along than I
started.

        Doc
Received on Sat Apr 06 2002 - 17:18:14 BST