28 Jun
2007
28 Jun
'07
8:26 a.m.
Jay wrote:
You might try Crisis, see www.crisis.com
They are great folks, I've delt with them a lot.
You might try some of the comp.sys.hp.XXXX newsgroups,
I know there is an HP hardware one there that used to
have good info (not saying they don't anymore, I just
haven't been there in ages). There was also an HP3000
newsgroup that had a lot of grizzled veterans from
"back in the day" who may have some info. I just noticed
a csd.machines and csd.machines.hp group that
could be fruitful just based on the name (I'm assuming
csd is Computer Systems Division).
I will poke around in these groups and see what I can find.
> I need to construct an interface cable for my
> recently acquired HP7202A flatbed pen plotter.
I messed with a few HP plotters many many years ago.
I seem to recall that their interfaces were bizarrely
"multipurpose". You're going to need a manual I bet.
I seem to recall that there were option selections in the
cable as well as dip switch settings? Whatcha gonna
do with your other 72xx plotter?
I have the service manual for the 7200A, which is basically
the same plotter. I am still trying to figure out the
technical diagrams in the manual. HP does not appear to
have as much detail in their engineering diagrams as DEC
did. If I can't find a cable, I will figure it out. I just
need to find out which 4 pins are used for the 20mA interface
and then I should be in business.
I plan to keep my other old HP plotter, which is a 7210A model.
Right now I need to "borrow" the pen holder from it because
the one on the 7202A is broken.
The 7210A was a couple years newer than the 7200A/7202A. It
used a different command language and a different interface.
Ashley
http://www.woffordwitch.com