24 Mar
2005
24 Mar
'05
4:44 a.m.
At 10:33 PM 3/23/05 -0500, you wrote:
Is there a "field guide" for HP 9000/300
systems like we have for DEC? I
would like to find more info on, for example, the 98547A RGB video
interface, 7958B Opt 550 disk drive unit, etc.
There's no HP Field Guide that I know of. Several times I've statrted to
put up some webpages about some of the more popular HP units but I never
finished it.
Also, in my 9000/375 there is a board which fits into a smaller card guide
assy (i.e., it is not the same physical size as the CPU and video modules,
but smaller)
FWIW The small cards are called "DIO" or "DIO-I" cards. The larger
cards
are called "DIO-II" cards. I don't remember what DIO stands for though. But
I could probably find out if it matters.
which has a paper sticker with several numbers including the
part number: A3057674-11.
It has an 80286 CPU chip on it which leads me to think its some sort of I/O
processor (?). No connector headers on the board; all connections go
through the edge connector. Can't find anything while searching on the
A3057 portion of the p/n (Axxxx is a type of part numbering scheme HP used
for some boards and stuff) nor on many combinations of parts of the p/n.
Darn! I've seen those cards but I can't remember what they are. I'll have
to go check the HP catalogs but they're across town so it will be at least
a couple of days before I can.
Joe
Thanks for your help.
BTW, while perusing the 'Net through Google looking for DEC SCSI boards I
found an RQZX1 (M5977) for Unibus for 'only' $2999.00 through a reseller
<http://www.varx.com/MODULES.HTML>. A Qbus RQZX1 was pegged at the same
price. Geeez, my wife is hoping to get only $2500 for her used 1993 Jeep
Grand Cherokee with 106k. Maybe they'll take a swap plus a few bucks for
either one? :-)
Regards, Chris F.
NNNN
Christian R. Fandt, Treasurer
Antique Wireless Association, Inc.
Jamestown, New York USA
email: cfandt at netsync.net
Electronic/Electrical Historian
URL: http://www.antiquewireless.org/