Wanted: some HP 9000/3xx bits
Steven M Jones
classiccmp at crash.com
Mon Oct 20 14:11:28 CDT 2008
Tony Duell wrote:
>> 98626A RS-232 Serial Port (DIO-I ?) card
> Yes, DIO-I.
The backplane has what appears to be a DIO-I adapter fitted for the top
slot of the backplane, with two card edge connectors - one impossibly
close to the top, you'd only ever fit one card.
The rest of the slots use two DIN connectors, a la VME and other busses.
One looks like a standard VME connector, the other is reverse gender
IIRC and about a third the pincount.
I'm wondering if these slots are the DIO-II that I've seen mentioned, or
some other designation.
> The 98626 is a fairly simple RS232 port based, oddly, on the 8250 chip.
> The 50 pin connector is a stnadard-for-HP pinout, [...]
At the moment I don't need to fuss with it, as there's a 16550 on the
system board with what looks like a standard "DB9" connector. But thanks
for the info, it may come in handy later.
>> 46021A HP-HIL keyboard (courtesy Weirdstuff Warehouse)
> The internals of that keyoard are a little strage.
Hopefully it will turn out to be a working example, and I won't need to
open it up! I remembered quite liking the keyboard from an HP 700/22
terminal many years ago, but don't especially care for this one. The
keys are very loose and wiggle around / rotate on the mechanism, and the
pitch/width of the keycaps seems to be enough smaller than my Thinkpad
keyboards that I'll be fumbling a lot.
I know there are converters to allow the use of standard keyboards and
mice, but at the moment I'm thinking of sticking with more-or-less stock
parts. Just wondering if there are other HIL keyboard options.
Thanks for the info!
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