6 Apr
2002
6 Apr
'02
5:18 p.m.
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