In article <201303291732.r2THWhCL045594 at mx1.ezwind.net>,
John Foust <jfoust at threedee.com> writes:
So do these have a current loop interface? Are these
the model that
was used in early 60s computing environments?
A brochure for the 2303 on bitsavers is dated "Received Apr 12 1966",
so the "modern" variety was available in the 1960s; who knows when
they stopped making them.
<http://bitsavers.trailing-edge.com/pdf/friden/74-252_Friden_2303_Brochure.pdf>
As for what interface they have, it is most likely current loop, but
it would depend on the model. Like teletypes, flexowriters were
highly customizable for different customers and applications, so while
there is a standard model, large installations might not purchase the
standard model but instead one with a customized interface or other
features. Some of the flexowriters I have contain various items that
are clearly additions to the base model and I haven't yet figured out
what those additions provide.
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