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Path: utzoo!linus!decvax!ittvax!dcdwest!sdcsvax!sdcrdcf!hplabs!sri-unix!CSTROM@SIMTEL20.ARPA
From: CSTROM@SIMTEL20.ARPA
Newsgroups: net.micro
Subject: Okidata 93 info wanted
Message-ID: <1476@sri-arpa.UUCP>
Date: Sun, 1-Jul-84 04:07:00 EDT
Article-I.D.: sri-arpa.1476
Posted: Sun Jul  1 04:07:00 1984
Date-Received: Sat, 14-Jul-84 13:19:38 EDT
Lines: 11

Two comments - shame on DEC for connecting pins 7 and 20 internally. I
agree that 20V on a pin that is supposed to be at ground is not very
friendly, but specifications for the RS-232 interface specifically
spell out pins 1 and 7 as being separate. Enough soap box activiity
for today...

I have a serial to parallel converter manufactured by Engineering
Specialties, Inc. They also make a parallel to serial converter. The
unit is CMOS (you need 5V at < 20ma which I stole from my buffer box)
and the beast runs quite reliably at 19.2K. Price is < $100. Check any
Byte for their small ad in the back of the magazine.