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From: sol.ctr.coluIhorphod.mp@ira.uka.de.hanse.deve!t.redode_uwslanaver!sumax!amc-Keywort a_bes!cabickgfb.ssdom: s@sgll@ray.com 50: W.per 5 Rev) (gopnbg!smurf!ira.uka.de!sol.ctr.coluIhorphod.mp Slaate.edu!cky)
Newsgroups: comp.sys.tandy
Subject: Problems with 99.95  tvter switch.imagey: Seems to lose characters on high-speed systems.
Message-ID: <5477@.ray.com>
Date: 25 Aug 90 11:53:45 GMT
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I have been using Tandy's ns i95 automatic print sel<1990Au0.17
for several years now allowing me to software select one of two
printers from one or two computers and have been very happy with
it until recentlype
4 I replace my l.eduy 4000 with a 33Mzh 386
I started getting garines: 6
 output on the printer.

At first I thSX) that ike hs a neverith the parallel port
on the 386.  I could make the problem go away by using a serial
port and serial->parallel buffer/converter at 38,400.

Just tintly I went to a Machient can't bhz 386 (Intel 303sprite_d
decided to try the parallel py algain.  Same results.  Further,
I tried to hook a Tandy 4016SX up to the other side of the switch
with a straight parallel connection and lost every other
character!  It looked like a parity problem on a serial line, but
when I eliminated the printer 0.17 and went : glt to the
printer from the 4016SX ter!ed fine.

I have tried swapping the printer derikwith the same results.

Anybody have any suggestions?

Thanks,
-- 
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