I have inherited a digitizing tablet called a "HIPAD DIGITIZER", model
DT-11, made by Houston Instument, circa 1982 I suspect.  It was used
with a PDP-11 based Image Analysis system put together by Dipix
Systems Limited.

My question is:
Does anyone have any technical information on this beast?  What are
the odds it uses "RS-232" communications protocol?  (It seems to use
three lines, of a standard 25-pin connector; lines 2, 7, and 25.  The
2 and 7 sound promising, but 25 is wierd.)   Any tips?

Tim.

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 Tim Martin                     *  
 Spatial Information Systems    *     Peculiar travel suggestions
 University of Alberta          *     are dance lessons from God. 
 Tim.Martin@UAlberta.CA         *                        -Bokonon
 (403) 492-6586                 *
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