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From: fzsitvay@techbook.com (Frank Zsitvay)
Newsgroups: comp.sys.tandy
Subject: Re: File transfer software for TRS-80 model 100?
Message-ID: <1990Dec16.065138.28200@techbook.com>
Date: 16 Dec 90 06:51:38 GMT
References: <1990Dec12.123645.16070@ugle.unit.no> <YETSKO.90Dec14100907@celtic.InterLan.COM>
Organization: TECHbooks of Beaverton Oregon - Public Access Unix
Lines: 15

In article <YETSKO.90Dec14100907@celtic.InterLan.COM> yetsko@interlan.interlan.com writes:
>BTW, a lot of communications problems with the 100 are because it is 5-volt
>only on the RS-232, and some other devices have series resistors to limit RFI
>and protect from voltage extremes.  Either buffer the signal from the 
>100 to generate true +/- 12v levels, or find another serial port that it work 
>with.  Tandy had this problem with their DC-1200 modem and the 100s.

   i dunno about you, but my 100 puts out +/- 12 on the serial port.
 
   ever heard of the MAX232 chip??

-- 
fzsitvay@techbook.COM - but don't quote me on that....

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