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Path: utzoo!watmath!clyde!burl!ulysses!gamma!epsilon!zeta!sabre!petrus!bellcore!decvax!tektronix!orca!shark!Bob
From: Bob@shark.UUCP
Newsgroups: net.info-terms
Subject: need help on interfacing terminal to SCM typewriter
Message-ID: <1553@shark.UUCP>
Date: Sun, 29-Sep-85 02:49:16 EDT
Article-I.D.: shark.1553
Posted: Sun Sep 29 02:49:16 1985
Date-Received: Wed, 2-Oct-85 01:00:16 EDT
Sender: bobl@shark.UUCP
Organization: Tektronix, Wilsonville OR
Lines: 20

Has anybody out there had any experience with the Smith-Corona "Messenger
Module" (hereafter, MM) unit that's supposed to provide an RS-232 interface
to (in this case) their Ultrasonic 350 electric typewriter.  I got one of
these beasts hoping to use the combination as a (low duty cycle) hard copy
printer and it has yet to work.  I've tried this with two different MM
units, and both showed the same behavior.

I've used a line monitor and found that the MM always seems to pull down DTR
(pin 20) when I issue the CODE-p command (regardless of the DTR polarity
setting), so nothing is sent.  If I bypass DTR by leaving it open, I can
get garbage to the typewriter.  The problem then begins to resemble a baud
rate mismatch, but I've diddled with the baud rate, parity, stop bit, and
most of the other settings on both ends (my terminal is an Ann Arbor
Ambassador) to no avail.

Has anybody out there used the MM, successfully or not?  What was your
configuration.  Please reply by netmail.  Thanks.

	- Bob Lewis
	  ...!tektronix!shark!bobl


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